Monera, Protista and Fungi
- Match List I with List IIList I: A. Rhizopus; B. Ustilago; C. Puccinia; D. AgaricusList II: I. Mushroom; II. Smut fungus; III. Bread mould; IV. Rust fungusChoose the correct answer from the options given below: Answer: 2. A-III, B-II, C-IV, D-I Key idea: match the fungus with its common name or disease. Rhizopus: bread mould (III) Ustilago: smut fun... 1
- Which one of the following is not a criterion for classification of fungi? Answer: 3. Mode of nutrition Key idea: fungi are classified on morphology of mycelium, mode of spore formation and fruiting bodies. All fung... 1
- Which of the following is a correct statement ? Answer: 2. Cyanobacteria are a group of autotrophic organisms classified under Kingdom Monera. Key idea: Cyanobacteria are autotrophic and b... 1
- Given below are two statements :Statement I :Mycoplasma can pass through less than 1 micron filter size.Statement II :Mycoplasma are bacteria with cell wallIn the light of the above statements, choose the most appropriate answer from the options give… Answer: 4. Statement I is correct but Statement II is incorrect Key idea: Mycoplasma are the smallest bacteria and have no cell wall. Statem... 1
- Identify the asexual reproductive structure associated with Penicillium : Answer: 3. Conidia Key idea: Penicillium is a fungus that reproduces asexually by conidia. Conidia are borne on conidiophores, so option 3 i... 1
- Which of the following statements is correct ? Answer: 2. Fusion of protoplasms between two motile on non-motile gametes is called plasmogamy. Check each statement. Fusion of two cells is... 1
- Which of the following statements is incorrect ? Answer: 4. Yeasts have filamentous bodies with long thread-like hyphae. Key idea: Yeasts are unicellular, not filamentous. Morels and truffl... 1
- Match Column - I with Column - II.Column - I | Column - II(a) Saprophyte | (i) Symbiotic association of fungi with plant roots(b) Parasite | (ii) Decomposition of dead organic materials(c) Lichens | (iii) Living on living plants or animals(d) Mycorrh… Answer: 4. (a)-(ii), (b)-(iii), (c)-(iv), (d)-(i) Key idea: Match nutrition modes with their meaning. Saprophyte: decomposes dead organic ma... 1
- Which of the following organisms are known as chief producers in the oceans ? Answer: 3. Diatoms Key idea: Diatoms are the chief producers in the oceans. These are abundant photosynthetic protists (golden-brown algae)... 1
- Ciliates differ from all other protozoans in Answer: 4. having two types of nuclei Key idea: Ciliated protozoans such as Paramecium have two types of nuclei: a large macronucleus and on... 1
- After karyogamy followed by meiosis, spores are produced exogenously in Answer: 2. *Agaricus* In basidiomycetes such as Agaricus, karyogamy and meiosis occur in the basidium, giving basidiospores borne exogenousl... 1
- Which among the following is *not* a prokaryote ? Answer: 1. *Saccharomyces* Saccharomyces is yeast, a unicellular fungus, so it is a eukaryote. Nostoc and Oscillatoria are cyanobacteria and... 1
- Which of the following are found in extreme saline conditions ? Answer: 4. Archaebacteria Archaebacteria live in harsh habitats: extreme halophiles in very salty places, thermoacidophiles in hot springs,... 1
- Which among the following are the smallest living cells, known without a definite cell wall, pathogenic to plants as well as animals and can survive without oxygen ? Answer: 2. Mycoplasma The description fits Mycoplasma. Smallest living cells. No cell wall, so they are pleomorphic. Pathogenic to plants an... 1
- Which one of the following is wrong for fungi? Answer: 1. All fungi possess a purely cellulosic cell wall. Fungal cell walls are made of chitin and other polysaccharides, not purely cellu... 1
- Methanogens belong to Answer: 1. Archaebacteria Methanogens produce methane under anaerobic conditions (for example in the gut of ruminants and in biogas plants)... 1
- Chrysophytes, Euglenoids, Dinoflagellates and Slime moulds are included in the kingdom : Answer: 2. Protista Chrysophytes (diatoms), euglenoids, dinoflagellates, slime moulds and protozoans are unicellular eukaryotes placed in Ki... 1
- One of the major components of cell wall of most fungi is : Answer: 1. Chitin Key idea: The fungal cell wall is made mostly of chitin (a polymer of N-acetylglucosamine) and polysaccharides. Peptidogly... 1
- Which one of the following statements is wrong ? Answer: 3. Eubacteria are also called false bacteria. Key idea: Eubacteria are the true bacteria, not 'false' bacteria. Cyanobacteria are bl... 1