Cell: The Unit of Life Questions and Answers Part-7

1. Which of the following is not the function of cell wall?
a) Interaction with outside world
b) Provide structural support and shape
c) Prevent from bursting and collapsing
d) Exchange of nutrition takes place through it

Answer: d
Explanation: Exchange of nutrition takes place through it

2. Which of the following is a form of mesosome?
a) Vesicles
b) Tubules
c) Lamellae
d) All of these

Answer: d
Explanation: All of these

3. Which of the following is a function of mesosome?
a) Cell wall formation
b) DNA replication and its distribution to daughter cells
c) Both (a) and (b)
d) None of these

Answer: c
Explanation: Both (a) and (b)

4. Which of the following helps in respiration, secretion process,and increase the surface area for enzymatic content?
a) Plasma membrane
b) Cell wall
c) Mesosomes
d) Glycocalyx layer

Answer: c
Explanation: Mesosomes

5. In which organisms the pigment containing chromatophores are found?
a) Algae
b) Cyanobacteria
c) Green algae
d) Amoeba

Answer: b
Explanation: Cyanobacteria

6. A thin, filamentous extension of cell wall required for a bacterial motility is called _________.
a) Hook
b) Flagella
c) Tail
d) Mesosome

Answer: b
Explanation: A thin, filamentous extension of cell wall required for a bacterial motility is called Flagella.

7. Which of the following is not a part of bacteria flagellum?
a) Filament
b) Hook
c) Basal body
d) None

Answer: d
Explanation: None of these

8. Of all the parts of flagellum, which one is the longest?
a) Filament
b) Hook
c) Basal body
d) Fimbriae

Answer: a
Explanation: Filament

9. Which of the following surface structure of bacteria does not take part in motility?
a) Flagella
b) Pilli
c) Fimbriae
d) Both (b) and (c)

Answer: d
Explanation: Both (b) and (c)

10. Which is the elongated tubular structure made of special protein on the surface of bacterial cell?
a) Flagella
b) Fimbriae
c) Pilli
d) All of these

Answer: c
Explanation: Pilli is the elongated tubular structure made of special protein on the surface of bacterial cell