Question

The following questions consist of two statements — Assertion (A) and Reason (R).
Answer these questions selecting the appropriate option given below: (a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true but R is not the correct explanation of A.
(c) A is true but R is false. (
d) A is false but R is true.

1. Assertion (A) : Passive transport does not involve energy. Reason (R) : It occurs due to concentration gradient of materials.
2. Assertion (A) : RBCs kept in hypotonic solution will swell. Reason (R) : Movement of water occurs from outside to inside the cell.
3. Assertion (A) : The outer membrane of mitochondria is folded into cristae. Reason (R) : Cristae increases the surface area.
4.Assertion (A) : Ribosomes are present in both eukaryotes and prokaryotes. Reason (R) : Ribosomes are the sites of protein synthesis.
5. Assertion (A) : Plant cells have a single large vacuole. Reason (R) : Vacuole is responsible for ingestion of food substance.

Answer 1

ANSWER

Science, any system of knowledge that is concerned with the physical world and its phenomena and that entails unbiased observations and systematic experimentation. In general, a science involves a pursuit of knowledge covering general truths or the operations of fundamental laws.

Answer 2

Explanation:

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