Question

Assertion and Reason type questions.
For questions given below, two statements are given
One labelled Assertion (A)and the other labelled Reason(R).
Select the correct answers to these questions from the codes (i), (ii), (iii) and (iv) as given below:


(i) Both assertion (A) and reason (R) are true and reason is correct Explanation of assertion.

(ii) Both assertion (A) and reason (R) are true but reason is not the Correct explanation of the assertion.

(iii) Assertion(A) is true but reason (R) is false.

(iv)Assertion(A) is false but reason (R) is true.

1. Assertion : Robert Hooke(1665) discovered cells in thin slice of cork.

Reason: He named them cells as they appeared like small chamber.

2. Assertion: The smallest cells are those of Mycoplasma.

Reason: Size of Mycoplasma is 0.1-0.5 mm.

3. Assertion : metabolic gases diffuse freely across plasma membrane.

Reason: Plasma membrane is permeable to these gases.

4. Assertion :Osmosis is movement of water from its higher concentration
to the area of lower concentration.

Reason: A semi permeable membrane is seldom required for it.

5. Assertion :A plant cell shows limited endosmosis.

Reason: An animal cell kept in hypotonic solution will burst.​

Answer 1

Answer:

Hooke's drawings show the detailed shape and structure of a thinly sliced piece of cork. When it came time to name these chambers he used the word 'cell' to describe them, because they reminded him of the bare wall rooms where monks lived. These rooms were called cells. That's why Robert Hooke used the term cell to describe what he saw in a slice of cork...

Answer 2

Explanation:

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