Biological Classification: Monera/Virus Quiz

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Biological Classification

Biological Classification: Monera/Virus

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Match Column-I with Column-II and choose the correct option.

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The symbiotic nitrogen fixing bacteria present in root nodules of legumes belongs to genus

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How many bacteria are produced in four hours if a bacterium divides once in half an hour?

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Which of the following shows the absence of chlorophyll 'b'?

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Under which of the following condition a Gram positive bacteria turns Gram negative?

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Which of the following is a cyanobacterium?

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Which one of the following is correct for structure of cell wall of fungi and bacteria?

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The site of respiration in bacteria is

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Which of the following does not evolve oxygen?

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Match column-I with column-II and select the option.

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In which of the following there is no sexual reproduction?

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'Peptidoglycan' is a characteristic constituent of the cell wall of

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Nitrifying bacteria, Nitrosomonas and Nitrobactor

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Auxospores and hormocysts are fomed respectively, by

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Which was the first photosynthetic organism?

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(i) Green algae occur in fresh water, brackish water, salt water.

(ii) Habitat of Brown algae-fresh water (rare), brackish water, salt water

(iii) Some red algae are found in fresh water, mostly occur in salt water, some are in brackish water.

(iv) Most of the red algae are multicellular.

(v) Red alga may occur in both well lighted regions close to water-surface and also at great depths in oceans where light penetration is little.

(vi) Cell wall of red algae consists of cellulose + agar.

(vii) 2 —8, equal and apical flagella in green algae.

Choose the correct option as per the statement given above.

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Heterocysts are found in certain

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Nitrogen fixation by Nostoc takes place in

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The chief component of bacterial cell wall is

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Bacteria are considered as plants, because

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Bacteria reproduces sexually by

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Which is not true for the heterocyst of Nostoc?

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Cyanophyceae has got

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Which of the following is true regarding the phage lambda, a virus which infects bacteria?

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Chemosynthetic bacteria are those bacteria which

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Mycoplasma is a

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In Escherichia coli

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Single filament of Nostoc without mucilage sheath is known as

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Mycoplasma are not sensitive to

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