41) What do imbrise\' of bacteria do? Catch food. A) ) Absorbing iquld food C) D

Question

41) What do imbrise' of bacteria do? Catch food. A) ) Absorbing iquld food C) D) Help in sexual reproduction E) All of the above. Sticking to substrate. 42) Picking up naked extracelludar DNA molecule is accomplished during A) Transcription C) Transformation. E) Translation D) Transduction. 43) Which of the following is NOT characterístic of Ciiates? A) They use cilia as locomotory or feeding structure. 8) They are relatively complex cells C) They can exchange genetic ma terial with other cliates by process of mitosis Most live as solitary cells in fresh water. D) E) They have two or more nuclei 44) A certain unkellular eukaryote has a silliceous (glassilike) shell and autotrophic nutrition. To which group does it belong? A) dinoflageliate. B) diatom. C) symnamoeba. D) Foraminferan. E) slime mold. Which taxonomic group containing eukaryotic organisms is thought to be directly ancestral to 45) the plant kingdom? A) golden algae. B) radiolarians. C) foraminiferans. D) ampicomplexans E) green algae. 46) What is the importance of plasmids in bacteria? A) They are used to for feeding in bacteria. 8) C) D) They confer certain genetic advantage that they the bacteria may not otherwise have. The are used as organelles for defence. They serve no purpose to the bacteria E) Band C are correct

Explanation / Answer

Ans 41 : C) sticking to substrate

The fimbriae are the short filamentous structures that are present on the bacterial surfaces and help them to attach with the solid surfaces such as rocks. They are short hair like fibers present scattered on whole of the body surface.

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