Free Cell The Unit Of Life (Daily Quiz: 10) NEET Biology Questions & Answers with Detailed Explanation & Full Review

Free Cell The Unit Of Life (Daily Quiz: 10) Time:

Question-1

Select the alternative giving the correct identification and function of the organelle 'A' in the diagram. A

cell-the-unit-of-life-neet-mcq-1-8-27

(a)

(b)

(c)

(d)


Question-2

Which of the following statements is/are correct ?
  1. The endomembrane system includes plasma membrane, ER, Golgi complex, lysosomes and vacuoles.
  2. ER helps in the transport of substances, synthesis of proteins, lipoproteins and glycogen.
  3. Ribosomes are involved in protein synthesis.
  4. Mitochondria help in oxidative phosphorylation and generation of ATP.

(a)

(b)

(c)

(d)

Explanation:

Answer: (b)

Endomembrance system is a grouping of some membrane organelles which function in close coordination with one another, viz., endoplasmic reticulum, Golgi complex, lysosomes and vacuoles.


Question-3

Axoneme with 9 + 2 microtubular arrangement occurs in

(a)

(b)

(c)

(d)

Explanation:

Answer: (c)

Axoneme with 9 + 2 microtubular arrangement occurs in cilia and flagella. Cilia are hair like growths of the cell membrane. Flagella are comparatively longer and responsible for movement. The axoneme usually has nine pair of centrally located microtubules. Such an arrangement of axonemal microtubules is referred to as the 9 + 2 array.


Question-4

Which structures perform the function of mitochondria in bacteria?

(a)

(b)

(c)

(d)

Explanation:

Answer: (d)

In some bacteria (e.g., Bacillus subtilis) the plasma membrane form certain invaginations or infoldings called mesosomes in the cytoplasm. The mesosomes have various functions, viz., respiratory, secretory etc.


Question-5

Cell wall shows

(a)

(b)

(c)

(d)

Explanation:

Answer: (b)

Cell wall shows complete permeability because it helps in the transport of substances into and out of the cell. The main function of the cell wall is to provide mechanical support.


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