gammae 41) What do \"fimbriae\" of bacteria do? A) Catch food. Absorbing liquid
ID: 205909 • Letter: G
Question
gammae 41) What do "fimbriae" of bacteria do? A) Catch food. Absorbing liquid food. c) Sticking to substrate. D) Help in sexual reproduction. E) All of the above. 42) Picking up naked extracellular DNA molecule is accomplished during A Transcription. B) Conjugation. C) Transformation. D) Transduction. E) Translation. 43) Which of the following is NOT characteristic of Ciliates? A) They use cilia as locomotory or feeding structure. B) They are relatively complex cells C) They can exchange genetic material with other ciliates by process of D) Most live as solitary cells in fresh water. E) They have two or more nuclei. 44) A certain unicellular eukaryote has a siliceous (glasslike) shell and autotrophic which group does it belong? A) dinoflagellate. B) diatom. C) gymnamoeba. D) Foraminferan. E) slime mold. nutrition. Te 45) Which taxonomic group containing eukaryotic organisms is thought to be directly ancestral the plant kingdom? A) golden algae B) radiolarians. C) foraminiferans. D) ampicomplexans E) green algae. 46) A) B) What is the importance of plasmids in bacteria? They are used to for feeding in bacteria. They confer certain genetic advantage that they the bacteria may not otherwise have. The are used as organelles for defence. C) They serve no purpose to the bacteria E) Band C are correct D)Explanation / Answer
41. Fimbriae is used by bacteria to get attach with the substrate. Fimbriae does not help in locomotion, absorbing food and gene transfer. Gene transfer is done with the help of sex pili. So answer is C.
42. When a genetic material is obtained through Bacteriophage, the process is called Transduction. Transcription is the process of copying DNA into RNA. Translation is the process of decoding the RNA into amino acid chains. Picking up of naked DNA (genetic) material from the surroundings of the bacterium is a process called Transformation. Answer is C.
43. Cilia are complex cells with cilia, cytoskeleton and two nuclei types. The cilia present on the surfaces are used for locomotion, feeding, swimming etc. Yes they live as solitary cells in fresh water. But the exchange or shuffling of genes happen through the process called conjugation and then undergoes meiosis. So the answer is C.
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.