{"id":40463,"date":"2024-02-17T08:38:21","date_gmt":"2024-02-17T03:08:21","guid":{"rendered":"https:\/\/www.aplustopper.com\/?p=40463"},"modified":"2024-02-17T16:24:01","modified_gmt":"2024-02-17T10:54:01","slug":"plus-one-botany-chapter-wise-questions-answers-chapter-1","status":"publish","type":"post","link":"https:\/\/www.aplustopper.com\/plus-one-botany-chapter-wise-questions-answers-chapter-1\/","title":{"rendered":"Plus One Botany Chapter Wise Questions and Answers Chapter 1 Biological Classification"},"content":{"rendered":"<h2>Kerala Plus One Botany Chapter Wise Questions and Answers Chapter 1 Biological Classification<\/h2>\n<h3>Plus One Botany Biological Classification One Mark Questions and Answers<\/h3>\n<p>Question 1.<br \/>\nIn Whit takers, five-kingdom classification eukaryotes are distributed among<br \/>\n(a) two kingdoms<br \/>\n(b) three kingdoms<br \/>\n(c) four kingdoms<br \/>\n(d) all the five kingdoms<br \/>\nAnswer:<br \/>\n(c) four kingdoms<\/p>\n<p>Question 2.<br \/>\nCyanobacteria are classified under which of the following kingdoms?<br \/>\n(a) Monera<br \/>\n(b) Protista<br \/>\n(c) Plantae<br \/>\n(d) Algae<br \/>\nAnswer:<br \/>\n(a) Monera<\/p>\n<p>Question 3.<br \/>\nMain component of cell wall of fungi is<br \/>\n(a) cellulose<br \/>\n(b) chitin<br \/>\n(c) pectin<br \/>\n(d) silica<br \/>\nAnswer:<br \/>\n(b) chitin<\/p>\n<p>Question 4.<br \/>\nDinoflagellates are mostly<br \/>\n(a) marine and saprophytic<br \/>\n(b) freshwater and saprophytic<br \/>\n(c) marine and photosynthetic<br \/>\n(d) terrestrial and<br \/>\nAnswer:<br \/>\n(c) marine and photosynthetic<\/p>\n<p>Question 5.<br \/>\nWhich of the following kingdoms do viruses belong to<br \/>\n(a) monera<br \/>\n(b) Protista<br \/>\n(c) fungi<br \/>\n(d) none of these<br \/>\nAnswer:<br \/>\n(d) none of these<\/p>\n<p>Question 6.<br \/>\nObserve the relationship between the first pair and fill up the blanks.<\/p>\n<ol>\n<li>Thermoacidophiles: Archaebacteria in hot spring<\/li>\n<li>Ripening of fruits: &#8230;&#8230;&#8230;&#8230;&#8230;.<\/li>\n<\/ol>\n<p>Answer:<br \/>\nEthylene.<\/p>\n<p>Question 7.<br \/>\nFill in the blanks.<\/p>\n<ol>\n<li>Rhizopus: Phycomycetes<br \/>\nYeast: &#8230;&#8230;&#8230;..<\/li>\n<li>Holdfast: Anchorage<br \/>\nHeterocyst: &#8230;&#8230;&#8230;.<\/li>\n<\/ol>\n<p>Answer:<\/p>\n<ol>\n<li>Ascomycetes<\/li>\n<li>N<sub>2<\/sub> fixation<\/li>\n<\/ol>\n<p>Question 8.<br \/>\nWho proposed Five kingdom classification?<br \/>\nAnswer:<br \/>\nR .H. Whittaker<\/p>\n<p>Question 9.<br \/>\nFind out the correct sequence of taxonomical category.<\/p>\n<ol>\n<li>Order \u2192 Kingdom \u2192 species \u2192 phylum<\/li>\n<li>species \u2192 genus \u2192 order \u2192 phylum<\/li>\n<\/ol>\n<p>Answer:<br \/>\n2. species \u2192 genus \u2192 order \u2192 phylum<\/p>\n<p>Question 10.<br \/>\nIn the five-kingdom system of Whittaker, how many kingdoms are eukaryotes?<br \/>\nAnswer:<br \/>\nFour kingdoms<\/p>\n<p>Question 11.<br \/>\nObserve the relationship between the first pair and fill up the blanks.<\/p>\n<ol>\n<li>Nostoc : Eubacteria:: methanogens: &#8230;&#8230;&#8230;&#8230;.<\/li>\n<li>Yeast: &#8230;&#8230;&#8230;&#8230;&#8230;&#8230;..:: Rhizopus: Phycomycetes :<\/li>\n<\/ol>\n<p>Answer:<\/p>\n<ol>\n<li>Archaebacteria<\/li>\n<li>Ascomycetes<\/li>\n<\/ol>\n<p>Question 12.<br \/>\nFind out the odd one.<br \/>\na. Diatom, Gonyaulax, Yeast, Euglena, Plasmodium<br \/>\nAnswer:<br \/>\nYeast<\/p>\n<p>Question 13.<br \/>\nVinod observed blooms in a polluted water body, his friend Kumar said that it might be nitrogen-fixing Nostoc or Anabaena. Can you suggest which type of cell can fix atmospheric nitrogen in these organisms?<br \/>\nAnswer:<br \/>\nHeterocyst<\/p>\n<p>Question 14.<br \/>\nObserve the relationship of the terms in the first pair and fill in the blanks:<\/p>\n<ol>\n<li>Vibrio: Comma shaped<br \/>\n&#8230;&#8230;&#8230;.: Rod-shaped<\/li>\n<li>Agaricus: Basidiomycetes<br \/>\nPenicillium: &#8230;&#8230;&#8230;&#8230;.<\/li>\n<\/ol>\n<p>Answer:<\/p>\n<ol>\n<li>Bacillus<\/li>\n<li>Ascomycetes<\/li>\n<\/ol>\n<p>Question 15.<br \/>\nDifference between Virus and Viroid.<br \/>\n(a) Absence of protein coat in viroid but present in virus<br \/>\n(b) Presence of low molecular weight RNA in virus but absent in viroid<br \/>\n(c) Both a and b<br \/>\n(d) None of the above<br \/>\nAnswer:<br \/>\n(a) Absence of protein coat in viroid but present in virus<\/p>\n<p>Question 16.<br \/>\nViruses are non-cellular organisms but replicate themselves once they infect the host cell. To which of the following kingdom do viruses belong to?<br \/>\n(a) Monera<br \/>\n(b) Protista<br \/>\n(c) Fungi<br \/>\n(d) None of the above<br \/>\nAnswer:<br \/>\n(d) None of the above<\/p>\n<p>Question 17.<br \/>\nA virus is considered as a living organism and an obligate parasite when inside a host cell. But virus is not classified along with bacteria or fungi. What are the characters of virus that are similar to nonliving objects?<br \/>\nAnswer:<br \/>\nViruses are acellular and can be crystallized.<\/p>\n<h3>Plus One Botany Biological Classification Two Mark Questions and Answers<\/h3>\n<p>Question 1.<br \/>\nThe seven taxonomic categories are given below. Arrange them in the correct sequence starting from the smallest taxon.<br \/>\nClass \u2192 species \u2192 kingdom \u2192 order \u2192 family \u2192 division \u2192 genus.<br \/>\nAnswer:<br \/>\nSpecies \u2192 genus \u2192 family \u2192 order \u2192 class \u2192 division \u2192 kingdom.<\/p>\n<p>Question 2.<br \/>\n\u201cTwo kingdom classification is inadequate one\u201d. Comment on it.<br \/>\nAnswer:<\/p>\n<ol>\n<li>It does not include organisms showing both plant and animal character.<\/li>\n<li>It does not take into the consideration of nature of nucleus.<\/li>\n<\/ol>\n<p>Question 3.<br \/>\nFive-kingdom classification of organism was given by R.H.Whittaker. State the criteria followed by Whittaker for his classification.<br \/>\nAnswer:<\/p>\n<ol>\n<li>Nature of cell<\/li>\n<li>Nature of nucleus<\/li>\n<li>Mode of nutrition<\/li>\n<\/ol>\n<p>Question 4.<br \/>\nName the following;<\/p>\n<ol>\n<li>A protist which can live both as an autotroph and as a heterotroph.<\/li>\n<li>Name a protist group which consists of saprophytes.<\/li>\n<\/ol>\n<p>Answer:<\/p>\n<ol>\n<li>Euglena<\/li>\n<li>Slime mould<\/li>\n<\/ol>\n<p>Question 5.<br \/>\nState two economic importance of<\/p>\n<ol>\n<li>Heterotrophic bacteria<\/li>\n<li>Archaebacteria<\/li>\n<\/ol>\n<p>Answer:<\/p>\n<ol>\n<li>Major decomposers that help in the curdling of milk, production of antibiotic, fixing nitrogen and cause diseases like tetanus, typhoid, cholera etc.<\/li>\n<li>Archaebacteria: production of biogas.<\/li>\n<\/ol>\n<p>Question 6.<br \/>\nWhat is the nature of cell walls of diatoms?<br \/>\nAnswer:<br \/>\nCell walls are made up of silica with two overlapping shells fit together like a soapbox.<\/p>\n<p>Question 7.<br \/>\nFind out what do the terms algal blooms and red tides signify?<br \/>\nAnswer:<\/p>\n<ul>\n<li>Algal bloom: Excessive growth of blue-green algae causes pollution of water bodies with characteristic odour.<\/li>\n<li>Red tide: Dinoflagellates like gonyaulax are red in colour which imparts red colour to seawater.<\/li>\n<\/ul>\n<p>Question 8.<br \/>\nFind out what do the terms \u2018algal bloom\u2019 and \u2018red tides\u2019 signify.<br \/>\nAnswer:<br \/>\n1. Algal bloom\u2019: When colour of water changes due to profuse growth of coloured phytoplanktons, it is called algal bloom.<\/p>\n<p>2. \u2018Red tides: Redness of the red sea is due to the luxuriant growth of Trichodesmium erythrium, a member of cyanobacteria (blue-green algae)\u2019<\/p>\n<p>Question 9.<br \/>\nHow are viroids different from virus?<br \/>\nAnswer:<br \/>\nViroids are free RNA without protein coat. Viruses have protein coat which encloses either RNA or DNA.<\/p>\n<p>Question 10.<br \/>\nJustify the physiological relationship between the algal and fungal component of lichen.<br \/>\nAnswer:<br \/>\nThe fungus holds water, provides protection and ideal housing to the alga. The alga supplies carbohydrate food for the fungus. If the alga is capable of fixing nitrogen, it supplies fixed nitrogen to fungus. This association is called symbiosis.<\/p>\n<p>Question 11.<br \/>\nBacteria reproduce by various methods. Mention the type of reproduction given in the diagram. What are the other methods of reproduction occur in bacteria?<br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-105079\" src=\"https:\/\/www.aplustopper.com\/wp-content\/uploads\/2019\/05\/Plus-One-Botany-Chapter-Wise-Questions-and-Answers-Chapter-1-Biological-Classification-2M-Q11.png\" alt=\"Plus One Botany Chapter Wise Questions and Answers Chapter 1 Biological Classification 2M Q11\" width=\"145\" height=\"255\" \/><br \/>\nAnswer:<br \/>\nBinary fission<br \/>\nThe other methods are sporulation and sexual reproduction.<\/p>\n<p>Question 12.<br \/>\nBiological classification is essential. Comment.<br \/>\nAnswer:<br \/>\nThe animals and plants vary greatly in their form, structure and mode of life. To find out an organism of known characters from the vast number of organism is simply impossible. So classification is important to divide into groups and subgroups.<\/p>\n<p>Question 13.<br \/>\nMatch the following:<\/p>\n<table border=\"2\">\n<tbody>\n<tr>\n<td width=\"107\">a. Produces a plant disease<\/td>\n<td width=\"142\">p. Saccharomyces cere visae<\/td>\n<\/tr>\n<tr>\n<td width=\"107\">b. is edible- light blight of potato.<\/td>\n<td width=\"142\">q. Phytophthora infestans<\/td>\n<\/tr>\n<tr>\n<td width=\"107\">c. is a source of antibiotic<\/td>\n<td width=\"142\">r. Agaricus campestris<\/td>\n<\/tr>\n<tr>\n<td width=\"107\">d. is used in the manufacture of ethanol<\/td>\n<td width=\"142\">s. Penicillium notatum<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Answer:<\/p>\n<ul>\n<li>a &#8211; Phytophthora infestans &#8211; light blight of potato.<\/li>\n<li>b- Agaricus campestris<\/li>\n<li>c &#8211; Penicillium notatum<\/li>\n<li>d &#8211; Saccharomyces cere visae<\/li>\n<\/ul>\n<p>Question 14.<br \/>\nPlants are autotrophs. Can you think of some plants that are heterotrophs?<br \/>\nAnswer:<br \/>\nGenerally all plants are autotrophs but plants like loranthus and cuscuta absorbs water &amp; nutrients from other plants so they are called as heterotrophs.<\/p>\n<p>Question 15.<br \/>\nWhat are the characteristic features of Euglenoides?<br \/>\nAnswer:<br \/>\nThey have protein sheath is called pellicle instead of cell wall. They have two flagella &#8211; One long and other short. They are photosynthetic in the presence of light and behave as heterotrophs in the absence of sunlight.<\/p>\n<p>Question 16.<br \/>\nGive 4 difference between Ascomycetes and Basidiomycetes:<br \/>\nAnswer:<\/p>\n<table border=\"2\">\n<tbody>\n<tr>\n<td style=\"text-align: center;\" width=\"160\">Ascomycetes<\/td>\n<td style=\"text-align: center;\" width=\"149\">Basidiomycetes<\/td>\n<\/tr>\n<tr>\n<td width=\"160\">1. Mycelium consists of branched multicellular septate hyphae.<\/td>\n<td width=\"149\">1. Mycelium may be primary, secondary (or) tertiary<\/td>\n<\/tr>\n<tr>\n<td width=\"160\">2. The fruiting bodies are ascocarps<\/td>\n<td width=\"149\">2. Fruiting bodies are basidiocarps.<\/td>\n<\/tr>\n<tr>\n<td width=\"160\">3. Sexual reproduction leads to the formation of ascus<\/td>\n<td width=\"149\">3. Formation of basidia formation of ascus.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Question 17.<br \/>\nObserve the cyanobacteria given below and answer the following.<\/p>\n<ol>\n<li>Name the cyanobacteria, and the kingdom it belongs.<\/li>\n<li>Label\u2019s \u2018P\u2019 and mention its functions.<\/li>\n<\/ol>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-105080\" src=\"https:\/\/www.aplustopper.com\/wp-content\/uploads\/2019\/05\/Plus-One-Botany-Chapter-Wise-Questions-and-Answers-Chapter-1-Biological-Classification-2M-Q17.png\" alt=\"Plus One Botany Chapter Wise Questions and Answers Chapter 1 Biological Classification 2M Q17\" width=\"296\" height=\"262\" \/><br \/>\nAnswer:<\/p>\n<ol>\n<li>Nostoc-kingdom-Monera<\/li>\n<li>Heterocyst &#8211; To fix nitrogen from the atmosphere.<\/li>\n<\/ol>\n<p>Question 18.<br \/>\nWhat do the terms phycobiont and mycobiont signify?<br \/>\nAnswer:<br \/>\nAlgal component of lichen is called phycobiont. It prepares food for fungus. Fungal partner is called mycobiont. It provides shelter and absorbs mineral nutrients for algae.<\/p>\n<p>Question 19.<br \/>\nPrepare a comparative account of different classes of kingdom fungi by considering following statements.<br \/>\nAnswer:<\/p>\n<ol>\n<li>Mode of nutrition<\/li>\n<li>Mode of reproduction<\/li>\n<\/ol>\n<p>Question 20.<br \/>\nThe two-kingdom classification is introduced by Linnaeus. Why is the two kingdom classification inadequate?<br \/>\nAnswer:<br \/>\nThere was no place of viruses and bacteriophages which can neither be considered as prokaryotes not eukaryotes.<\/p>\n<p>In this classification, eukaryotes were put together with prokaryotes and non-photosynthetic fungi along with photosynthetic plants.<\/p>\n<p>Question 21.<br \/>\nHow is the five-kingdom classification advantageous over the two kingdom classification?<br \/>\nAnswer:<br \/>\nIn this classification main criteria used by R H Whittaker include cell structure, thallus organisation, mode of nutrition, reproduction and phylogenetic relationships. These characters were not considered in two kingdom classification.<\/p>\n<p>Question 22.<br \/>\nAre chemosynthetic bacteria-autotrophic or heterotrophic?<br \/>\nAnswer:<br \/>\nAutotrophic, because they get energy from the oxidation of inorganic compounds. So the released energy is stored in the ATP molecules.<\/p>\n<p>Question 23.<br \/>\nCyanobacteria and some other photosynthetic bacteria don\u2019t have chloroplasts. How do they conduct photosynthesis?<br \/>\nAnswer:<br \/>\nCyanobacteria and other photosynthetic bacteria have thylakoids suspended freely in the cytoplasm (i.e., they are not enclosed in membrane), and they have bacteriochlorophyll<\/p>\n<p>Question 24.<br \/>\nWith respect to fungal sexual cycle, choose the correct sequence of events.<br \/>\nAnswer:<\/p>\n<ol>\n<li>Karyogamy, Plasmogamy and Meiosis<\/li>\n<li>Meiosis, Plasmogamy and Karyogamy<\/li>\n<li>Plasmogamy, Karyogamy and Meiosis<\/li>\n<li>Meiosis, Karyogamy and Plasmogamy<\/li>\n<\/ol>\n<p>Question 25.<br \/>\nWhat is the principle underlying the use of cyanobacteria in agricultural fields for crop improvement?<br \/>\nAnswer:<br \/>\nIt is due to the presence of special nitrogen-fixing cell called heterocyst present between the filaments. So it helps to increase N2 content in the soil.<\/p>\n<p>Question 26.<br \/>\nMethane is the main component of biogas and it is produced by bacteria.<\/p>\n<ol>\n<li>Name the bacteria.<\/li>\n<li>Identify the group in which it belongs.<\/li>\n<\/ol>\n<p>Answer:<\/p>\n<ol>\n<li>Methanogens<\/li>\n<li>Archaebacteria<\/li>\n<\/ol>\n<p>Question 27.<br \/>\nBased on the relationship, fill in the blanks.<\/p>\n<ol>\n<li>Sac fungi: Ascomycetes<br \/>\nImperfect fungi: &#8230;&#8230;&#8230;&#8230;<\/li>\n<li>Thermoacidophiles: Archaebacteria in hot springs<br \/>\n&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;: Archaebacteria in Salty areas<\/li>\n<\/ol>\n<p>Answer:<\/p>\n<ol>\n<li>Deuteromycetes<\/li>\n<li>Halophiles<\/li>\n<\/ol>\n<p>Question 28.<br \/>\nName the kingdom in which euglena belongs. Give the special type nutrition.<br \/>\nAnswer:<br \/>\nKingdom Protista, Mixotrophic nutrition (ie, both autotrophic and heterotrophic).<\/p>\n<p>Question. 29<br \/>\nSome bacteria are different from others and they have the ability to survive in extreme conditions. Name it.<br \/>\nAnswer:<br \/>\nArchaebacteria (halophiles, thermoacidophiles and methanogens).<\/p>\n<p>Question 30.<br \/>\nMycoplasma are included in five kingdom classification but not viruses. Why?<br \/>\nAnswer:<br \/>\nBecause mycoplasmas are living cellular organisms but viruses are acellular particles.<\/p>\n<p>Question 31.<br \/>\nIn which division of protista chief producers in ocean belongs. Give the cell wall composition of such organisms.<br \/>\nAnswer:<br \/>\nChrysophytes, silicified cell wall.<\/p>\n<p>Question 32.<br \/>\nNitrobactor and nitrosomonas are free living nitrogen fixers and chemoautotrophs but their functions are different. Do you agree. Give reasons.<br \/>\nAnswer:<br \/>\nYes. Nitrobactor converts nitrite into nitrate while nitrosomonas converts ammonia into nitrites.<\/p>\n<p>Question 33.<br \/>\nName the classes fungi shows exogenous and endogenous spore production. In which fruiting bodies they are found.<br \/>\nAnswer:<\/p>\n<ul>\n<li>Exogenous-Basidiomycetes. Its fruiting body is basidiocarp.<\/li>\n<li>Endogenous-Ascomycetes. Its fruiting body is ascocarp.<\/li>\n<\/ul>\n<p>Question 34.<br \/>\nRust and smut diseases are caused by the members of basidiomycetes. Name it.<br \/>\nAnswer:<br \/>\nSmut disease- Ustilago, Rust disease-Puccinia.<\/p>\n<p>Question 35.<br \/>\nWhat are the events takes place in slime mould during favourable and unfavourable season?<br \/>\nAnswer:<br \/>\nDuring favourable condition the cells aggregate and form plasmodium while in unfavourable season plasmodium differentiates and produce fruiting bodies that bear spores at tip.<\/p>\n<p>Question. 36<br \/>\nSuppose you accidentally find an old preserved permanent slide without a label. In your effort to identify it, you place the slide under microscope and observe the following features<\/p>\n<ol>\n<li>Unicellular<\/li>\n<li>Well defined nucleus<\/li>\n<li>Biflagellate-one flagellum lying longitudinally and the other transversely.<\/li>\n<\/ol>\n<p>What would you identify it as? Can you name the kingdom it belongs to?<br \/>\nAnswer:<br \/>\nDinoflagellates, Kingdom protista<\/p>\n<p>Question. 37<br \/>\nWhat would you identify it as? Can you name the kingdom it belongs to?<br \/>\nAnswer:<br \/>\nDinoflagellates, Kingdom protista<\/p>\n<p>Question. 38<br \/>\nWhy lichens are called as dual organisms?<br \/>\nAnswer:<br \/>\nLichens are said to be dual organisms because they show a symbiotic association between a fungus and alga.<\/p>\n<p>Question 39.<br \/>\nName the asexual, reproductive structure of penicillium and yeast.<br \/>\nCan penicilium reproduce through sexual method? If the yes or no Give reason.<br \/>\nAnswer:<br \/>\nConidia &#8211; penicilium, buds &#8211; yeast<br \/>\nYes, It is done by the production of ascospores in asci of Ascocarp.<\/p>\n<p>Question 40.<br \/>\nOrganise a discussion in your class on the topic virus. Are viruses living or non-living?<br \/>\nAnswer:<br \/>\nThey are filterable and may becrystalised. They are inert outside their specific host and able to reproduce inside the living host cell, so they are considered as living. They use the protein synthesising machinery of the host.<br \/>\nEg. AIDS virus, mumps virus etc.<\/p>\n<p>Question 41.<br \/>\nHow are viroids different from viruses?<br \/>\nAnswer:<\/p>\n<table border=\"2\">\n<tbody>\n<tr>\n<td style=\"text-align: center;\" width=\"144\">Virus<\/td>\n<td style=\"text-align: center;\" width=\"164\">Viroid<\/td>\n<\/tr>\n<tr>\n<td width=\"144\">1. Their size is smaller than bacteria<\/td>\n<td width=\"164\">1. Their size is smaller than viruses<\/td>\n<\/tr>\n<tr>\n<td width=\"144\">2. Protein coat is Present<\/td>\n<td width=\"164\">2. Protein coat is absent<\/td>\n<\/tr>\n<tr>\n<td width=\"144\">3. Genetic material may be DNA or RNA<\/td>\n<td width=\"164\">3. Genetic material is only RNA<\/td>\n<\/tr>\n<tr>\n<td width=\"144\">4. They cause AIDS, smallpox etc.<\/td>\n<td width=\"164\">4. They cause potato spindle tuber diseases<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Question 42.<br \/>\nSome bacteria are specialised and live in extreme habitat.<\/p>\n<ol>\n<li>Name the types of bacteria are specified in the above statement.<\/li>\n<li>Which is the part of bacteria modified to live in that condition?<\/li>\n<\/ol>\n<p>Answer:<br \/>\n1. Types of bacteria<\/p>\n<ul>\n<li>Methanogens<\/li>\n<li>Halophiles<\/li>\n<li>Thermo acidophiles<\/li>\n<\/ul>\n<p>2. Ceil wall structure<\/p>\n<p>Question 43.<br \/>\nThe two nuclei per cell can be seen in fungal cell but it later fuse in some members.<\/p>\n<ol>\n<li>Name such type of fungal hyphae or mycelium.<\/li>\n<li>Identify the classes of fungi.<\/li>\n<\/ol>\n<p>Answer:<\/p>\n<ol>\n<li>Dikaryotic mycelium<\/li>\n<li>Ascomycetes, Basidiomycetes<\/li>\n<\/ol>\n<p>Question 44.<br \/>\nClassify the pathogenic microorganisms and disease in different groups based on the following symptoms mosaic disease, citrus canker .potato spindle tuber disease, sleeping sickness, malaria.<br \/>\nAnswer:<br \/>\nmosaic disease-virus, citrus canker-Bacteria, potato spindle tuber disease -viroids, sleeping sickness- Trypanosoma, malaria-Plasmodium vivax.<\/p>\n<h3>Plus One Botany Biological Classification Three Mark Questions and Answers<\/h3>\n<p>Question 1.<br \/>\nDescribe briefly the four major groups of protozoa.<br \/>\nAnswer:<br \/>\nProtozoans are heterotrophs act either as predators<br \/>\nor parasites. They are of four groups<\/p>\n<ol>\n<li>Amoeboid protozoans: They capture their prey by using pseudopodia. They live in freshwater. Some are parasites eg: entamoeba.<\/li>\n<li>Flagellated protozoans: They are free-living or parasites. They cause diseases, eg: Trypanosoma-sleeping sickness.<\/li>\n<li>ciliated protozoans: They possess cilia in their body surface for locomotion. They have gullet for food intake. Eg: Paramecium<\/li>\n<li>Sporozoans: They are spore-producing organism that causes diseases eg: plasmodium causing malaria.<\/li>\n<\/ol>\n<p>Question 2.<br \/>\nDifferent types of fungi are given<br \/>\n1. Classify them into their specific classes.<\/p>\n<table border=\"2\">\n<tbody>\n<tr>\n<td style=\"text-align: center;\" width=\"312\">Groups<\/td>\n<td style=\"text-align: center;\" width=\"312\">Fungi<\/td>\n<\/tr>\n<tr>\n<td width=\"312\">Phycomycetes<\/td>\n<td width=\"312\">Trichoderma<\/td>\n<\/tr>\n<tr>\n<td width=\"312\">Ascomycetes<\/td>\n<td width=\"312\">Neurospora<\/td>\n<\/tr>\n<tr>\n<td width=\"312\">Basidiomycetes<\/td>\n<td width=\"312\">Albugo<\/td>\n<\/tr>\n<tr>\n<td width=\"312\">Deuteromycetes<\/td>\n<td width=\"312\">Mucor<\/td>\n<\/tr>\n<tr>\n<td width=\"312\"><\/td>\n<td width=\"312\">Agaricus<\/td>\n<\/tr>\n<tr>\n<td width=\"312\"><\/td>\n<td width=\"312\">Ustilago<\/td>\n<\/tr>\n<tr>\n<td width=\"312\"><\/td>\n<td width=\"312\">Alternaria<\/td>\n<\/tr>\n<tr>\n<td width=\"312\"><\/td>\n<td width=\"312\">Claviceps<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>2. Write the distinguishing characters of ascomycetes and basidiomycetes<br \/>\n3. The characteristic features of members of monera are given below.<\/p>\n<p>Organisms lack cell wall, live without oxygen, smallest living cell and causes diseases. Identify the organism by analysing the above characters.<br \/>\nAnswer:<br \/>\n1. specific classes.<\/p>\n<ul>\n<li>Phycomycetes &#8211; Mucor, Albugo<\/li>\n<li>Ascomycetes &#8211; Neurospora, Claviceps<\/li>\n<li>Basidiomycetes-Agaricus, Ustilago<\/li>\n<li>Deuteromycetes &#8211; Altemaria, Trichoderma.<\/li>\n<\/ul>\n<p>2. In ascomycetes, Asexual mode of reproduction is prominent by conidiospores. In Basidiomycetes asexual spores are not found. Sexual spores are arranged in ascus with Ascospores in ascomycetes, whereas sexual spores are arranged in basidium in basidiomycetes.<\/p>\n<p>3. Mycoplasma<\/p>\n<p>Question 3.<br \/>\nGive a brief account of virus with respect to their structure and nature of genetic material. Also, name four common viral diseases?<br \/>\nAnswer:<br \/>\nViruses are organism having inert crystalline structure outside the living cell. They have genetic material RNA or DNA.which is either single-stranded\/double-stranded. It is enclosed by protein capsid with subunits called capsomeres.<\/p>\n<p>The viral genetic material takes control over the host cell mechanism during infection. Some common viral diseases are mumps, herpes, smallpox and influenza in animals and mosaic disease in plants.<\/p>\n<p>Question. 4<br \/>\nIn which groups are the following found- Sporangiophore, Conidia, zygospore and ascospore.<br \/>\nAnswer:<\/p>\n<ul>\n<li>Conidia are spores found in ascomycetes.<\/li>\n<li>These are haploid asexual spores produced in chains exogenously.<\/li>\n<li>Zygospores are the diploid resting spores found in mucor.<\/li>\n<li>Ascospores are haploid sexual spores found in sac-like structure (ascus).<\/li>\n<li>Sporangiophore is an aerial branch produced by hyphae in mucor that bear sporangia.<\/li>\n<\/ul>\n<h3>Plus One Botany Biological Classification NCERT Questions and Answers<\/h3>\n<p>Question 1.<br \/>\nWhat is the nature of cell walls in diatoms?<br \/>\nAnswer:<br \/>\nThe cell walls in diatoms are embedded with silica, which makes them indestructible. They form two thin overlapping shells which fit together as in a soapbox. Thus diatoms have left behind large amounts of cell wall deposits in their habitat.<\/p>\n<p>Question 2.<br \/>\nHow are viroids different from viruses?<br \/>\nAnswer:<br \/>\nViroids are free RNAs without the protein coat, while virus has a protein coat encapsulating the RNA.<\/p>\n<p>Question 3.<br \/>\nDescribe briefly the four major groups of Protozoa.<br \/>\nAnswer:<br \/>\nFour major groups of Protozoa are as given below:<br \/>\n1. Amoeboid Protozoa:<br \/>\nThey are found in freshwater, seawater or moist soil. They have pseudopodia, like amoeba, hence the name ameoboid protozoa.<\/p>\n<p>2. Flagellated Protozoans:<br \/>\nThey have flagella helps in locomotion. Some are parasite. Eg. Trypanosoma causes sleeping sickness.<\/p>\n<p>3. Ciliated Protozoa:<br \/>\nThey have thousands of cilia present all over the body. The cilia helps in locomotion and steering of food into the gullet.<\/p>\n<p>4. Sporozoans:<br \/>\nMany protozoans have an infectious spore-like stage in the life cycle. The spore-like stage helps them get transferred from one host to another host.<\/p>\n<p>Question. 4<br \/>\nPlants are autotrophic. Can you think of some plants that are partially heterotrophic?<br \/>\nAnswer:<br \/>\nCertain insectivorous plants, like bladderwort and venus fly trap, are partially heterotrophic.<\/p>\n<p>Question. 5<br \/>\nWhat do the terms phycobiont and mycobiont signify?<br \/>\nAnswer:<br \/>\nLichens are good examples of symbiotic life of algae and fungi. Phycobiont is the name of the part composed of algae and Mycobiont is the name of the part composed of fungi. Fungi provide minerals and support to the alage, while algae provide nutrition to the fungi.<\/p>\n<p>Question 6.<br \/>\nWhat are the characteristic features of Euglenoids?<br \/>\nAnswer:<br \/>\nFeatures of Euglenoids.<\/p>\n<ul>\n<li>No cell wall.<\/li>\n<li>Protein-rich layer, called pellicle, which makes flexible body.<\/li>\n<li>Two flagella of different lengths.<\/li>\n<li>Autotrophs in sunlight, heterotrophs in the absence of sunlight. Example: Euglena.<\/li>\n<\/ul>\n<p>Question 7.<br \/>\nGive a brief account of viruses with respect to their structure and nature of genetic material. Also name four common viral diseases.<br \/>\nAnswer:<br \/>\nVirus Structure:<br \/>\nOutside a host cell, virus is a crystalline structure, composed of protein. Inside the crystal, there is genetic material, which can be either RNA or DNA. No virus has both RNA and DNA. Viruses, infecting plants, have single-stranded RNA. Viruses, infecting animals, have either single or double-stranded RNA or double-stranded DNA.<\/p>\n<p>The protein coat is called capsid. Capsid is made of smaller subunits, called capsomeres, it protects nucleic acid. Diseases caused by Virus; AIDS, Mumps, Influenza, Herpes.<\/p>\n<p>Question 8.<br \/>\nFind out what do the terms \u2018algal bloom\u2019 and \u2018red tides\u2019 signify.<br \/>\nAnswer:<br \/>\nDinoflagellates can be of different colours depending on the type of pigment present. The red dinoflagellate sometimes multiplies at a very rapid rate. This is called as algal bloom. This gives a red appearance to the part of affected sea. This is also known as \u2018red tide\u2019. Toxins released by them can kill other marine species.<\/p>\n<h3>Plus One Botany Biological Classification Multiple Choice Questions and Answers<\/h3>\n<p>Question 1.<br \/>\nThe life form used as indicators of pollution<br \/>\n(A) Lichens<br \/>\n(B) Protozoa<br \/>\n(C) Algae<br \/>\n(D) Agaricus<br \/>\nAnswer:<br \/>\n(A) Lichens<\/p>\n<p>Question 2.<br \/>\nKingdom monera comprises<br \/>\n(A) Amoeba, Bacteria,Trypanosoma<br \/>\n(B) Bacteria, Viruses,Virolds<br \/>\n(C) Archaebacteria, Eubacteria, Mycoplasma<br \/>\n(D) Mycoplasma, Viruses, Bacteria<br \/>\nAnswer:<br \/>\n(C) Archaebacteria, Eubacteria, Mycoplasma<\/p>\n<p>Question 3.<br \/>\nWho discovered two-kingdom classification<br \/>\n(A) Ivanowsky<br \/>\n(B) Stanley<br \/>\n(C) leuwernhoek<br \/>\n(D) Linnaeus<br \/>\nAnswer:<\/p>\n<p>Question 4.<br \/>\nAsexual reproduction takes place by Zoospores in<br \/>\n(A) Pythium<br \/>\n(B) Agaricus<br \/>\n(C) Rhizopus<br \/>\n(D) Ustilago<br \/>\nAnswer:<br \/>\n(D) Ustilago<\/p>\n<p>Question 5.<br \/>\nIdentify the organism used as bioweapon<br \/>\n(A) Bacillus thuringiensis<br \/>\n(B) Bacillus anthracis<br \/>\n(C) Pseudomonas citri<br \/>\n(D) Rhizobium tumefacient<br \/>\nAnswer:<br \/>\n(B) Bacillus anthracis<\/p>\n<p>Question 6.<br \/>\nReserve food in the form of glycogen and cell wall made up of chitin are characteristic of<br \/>\n(A) Protists<br \/>\n(B) bacteria<br \/>\n(C) Fungi<br \/>\n(D) protozoa<br \/>\nAnswer:<br \/>\n(C) Fungi<\/p>\n<p>Question 7.<br \/>\nThe fruiting body of club fungi is<br \/>\n(A) Basidium<br \/>\n(B) Ascus<br \/>\n(C) Ascocarp<br \/>\n(D) Basidiocarp<br \/>\nAnswer:<br \/>\n(D) Basidiocarp<\/p>\n<p>Question 8.<br \/>\nRNA without protein coat are found in<br \/>\n(A) bacteria<br \/>\n(B) protozoa<br \/>\n(C) viruses<br \/>\n(D) viroides<br \/>\nAnswer:<br \/>\n(D) viroides<\/p>\n<p>Question 9.<br \/>\nThe phycobiont and mycobiont are found in<br \/>\n(A) bacteria<br \/>\n(B) lichen<br \/>\n(C) viroides<br \/>\n(D) fungi<br \/>\nAnswer:<br \/>\n(B) lichen<\/p>\n<p>Question 10.<br \/>\nThe organism which causing sleeping sickness belongs to<br \/>\n(A) Protists<br \/>\n(B) bacteria<br \/>\n(C) Fungi<br \/>\n(D) viruses<br \/>\nAnswer:<br \/>\n(A) Protists<\/p>\n<p>Question 11.<br \/>\nIn which of the following groups are neurospora and Penicillium included?<br \/>\n(A) Phycomycetes<br \/>\n(B) Basidiomycetes<br \/>\n(C) Zygomycetes<br \/>\n(D) Ascomycetes<br \/>\nAnswer:<br \/>\n(D) Ascomycetes<\/p>\n<p>Question 12.<br \/>\nOccurrence of Dikaryon phase is characteristic feature of<br \/>\n(A) Bacteria<br \/>\n(B) Fungus<br \/>\n(C) Slime moulds<br \/>\n(D) Cyanobacteria<br \/>\nAnswer:<br \/>\n(B) Fungus<\/p>\n<p>Question13.<br \/>\nMethane producers are belongs to<br \/>\n(A) Archaebacteria<br \/>\n(B) Cyanobacteria<br \/>\n(C) Eubactenia<br \/>\n(D) Actinomycetes<br \/>\nAnswer:<br \/>\n(A) Archaebacteria<\/p>\n<p>Question 14.<br \/>\nHeterocyst are found in<br \/>\n(A) Nitrosomonas<br \/>\n(B) cyanobacteria<br \/>\n(C) fungi<br \/>\n(D) protozoa<br \/>\nAnswer:<br \/>\n(B) cyanobacteria<\/p>\n<p>Question 15.<br \/>\nColletotrichum falcatum is a fungus causing the following disease<br \/>\n(A) Smut of wheat<br \/>\n(B) Wilt disease of cotton<br \/>\n(C) Red rot of sugar cane<br \/>\n(D) Late blight of potato<br \/>\nAnswer:<br \/>\n(C) Red rot of sugar cane<\/p>\n<h5><a href=\"https:\/\/www.aplustopper.com\/plus-one-botany-chapter-wise-questions-and-answers\/\">Plus One Botany Chapter Wise Questions and Answers<\/a><\/h5>\n","protected":false},"excerpt":{"rendered":"<p>Kerala Plus One Botany Chapter Wise Questions and Answers Chapter 1 Biological Classification Plus One Botany Biological Classification One Mark Questions and Answers Question 1. In Whit takers, five-kingdom classification eukaryotes are distributed among (a) two kingdoms (b) three kingdoms (c) four kingdoms (d) all the five kingdoms Answer: (c) four kingdoms Question 2. Cyanobacteria [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_genesis_hide_title":false,"_genesis_hide_breadcrumbs":false,"_genesis_hide_singular_image":false,"_genesis_hide_footer_widgets":false,"_genesis_custom_body_class":"","_genesis_custom_post_class":"","_genesis_layout":"","footnotes":""},"categories":[42728],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v17.8 (Yoast SEO v17.8) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Plus One Botany Chapter Wise Questions and Answers Chapter 1 Biological Classification - A Plus Topper<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.aplustopper.com\/plus-one-botany-chapter-wise-questions-answers-chapter-1\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Plus One Botany Chapter Wise Questions and Answers Chapter 1 Biological Classification\" \/>\n<meta property=\"og:description\" content=\"Kerala Plus One Botany Chapter Wise Questions and Answers Chapter 1 Biological Classification Plus One Botany Biological Classification One Mark Questions and Answers Question 1. 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In Whit takers, five-kingdom classification eukaryotes are distributed among (a) two kingdoms (b) three kingdoms (c) four kingdoms (d) all the five kingdoms Answer: (c) four kingdoms Question 2. 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