Free Cell The Unit Of Life (Daily Quiz: 5) NEET Biology Questions & Answers with Detailed Explanation & Full Review

Free Cell The Unit Of Life (Daily Quiz: 5) Time:

Question-1

What is external to glycocalyx layer in prokaryotic cell like bacteria?

(a)

(b)

(c)

(d)


Question-2

What does a nucleus of a typical animal cell contain?

(a)

(b)

(c)

(d)


Question-3

The nucleolus is the site of formation of

(a)

(b)

(c)

(d)

Explanation:

Answer: (a)

Nucleolus was discovered by Fontana (1781) and given name by Bowman (1840). It does not have membrane and is attached to chromatin at nucleolar organiser region (NOR). Nucleolus is the site for elaboration of r-RNA and synthesis of ribosomes, hence called ribosomal factory.


Question-4

Hydrolytic enzymes are activated at _______ pH.

(a)

(b)

(c)

(d)


Question-5

Which of the following options is true for a secretory cell?

(a)

(b)

(c)

(d)

Explanation:

Answer: (c)

Rough endoplasmic reticulum (RER) mainly consists of cisternae. Ribosomes are attached on its cytoplasmic surface. This makes the surface look rough or granular. The RER often occurs deep in the cytoplasm. It is used to synthesize and secrete proteins.


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