Free Cell The Unit Of Life (Daily Quiz: 3) NEET Biology Questions & Answers with Detailed Explanation & Full Review

Question-1

Which one of the following cellular parts is correctly matched with their characters ?

(a) Lysosomes – Optimally active at a pH of about 8.5.

(b) Centrioles – Sites for active RNA synthesis.

(c) Thylakoids – Flattened membranous sacs forming the grana of chloroplasts.

(d) Ribosomes – Those on chloroplasts are larger (80S) while those in the cytoplasm are smaller (70S).

Question-2

Assertion :
The acrocentric chromosome has centromere at the terminal position.
Reason :
The metacentric chromosome has centromere slightly away from the middle of the chromosome.

(a) If both Assertion and Reason are true but the Reason is not the correct explanation of the Assertion.

(b) If both Assertion and Reason are true and the Reason is the correct explanation of the Assertion.

(c) If Assertion is true but Reason is false.

(d) If both Assertion and Reason are false.

Question-3

Microtubule is involved in the

(a) membrane architecture

(b) cell division

(c) muscle contraction

(d) DNA recognition

Question-4

Function of RER is

(a) protein synthesis

(b) autolysis

(c) lipid synthesis

(d) carbohydrate synthesis

Question-5

An elaborate network of filamentous proteinaceous structures present in the cytoplasm which helps in the maintenance of cell shape is called

(a) Plasmalemma

(b) Endosplasmic Reticulum

(c) Cytoskeleton

(d) Thylakoid