Choose the wrong statement.

(a) Penicillium is multicellular and produces antibiotics.

(b) Neurospora is used in the study of biochemical genetics.

(c) Morels and truffles are poisonous mushrooms.

(d) Yeast is unicellular and useful in fermentation.

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The structures that help some bacteria to attach to rocks and/or host tissues are

(a) rhizoids

(b) fimbriae

(c) mesosomes

(d) holdfast

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In which group of organisms the cell walls form two thin overlapping shells which fit together?

(a) Chrysophytes

(b) Euglenoids

(c) Dinoflagellates

(d) Slime moulds

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Pick up the wrong statement.

(a) Cell wall is absent in Animalia.

(b) Protista have photosynthetic and heterotrophic modes of nutrition.

(c) Some fungi are edible.

(d) Nuclear membrane is present in Monera.

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Which of the following are likely to be present in deep sea water ?

(1) Archaebacteria

(2) Eubacteria

(3) Blue-green algae

(4) Saprophytic fungi

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The rod shaped cells of Bacillus megatarium are converted to spherical units called protoplasts on treatment with the enzyme

(1) lysozyme

(2) cellulase

(3) cellulase and hemicellulase

(4) cellulase, hemicellulase and pectinase

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The organelle common among prokaryotic and eukaryotic cell is

(1) centrosome

(2) ribosome

(3) peroxisome

(4) glyoxysome

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The characteristic features of the mycoplasma are that

(1) they are much smaller than bacteria in size

(2) they can be grown on cell free medium

(3) they are highly pleomorphic and are bounded by a triple layered unit membrane

(4) all of the above

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The kingdom protista does  not include

(1) photosynthetic organisms

(2) flagellate organisms

(3) parasitic organisms

(4) bacteria

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A lichen that grows by branching is described as 

(1) fruticose

(2) crustose

(3) foliose

(4) dichotose

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