Question

Assertion (A): Protenaceous pea seeds swell more on imbibition than starch wheat seeds. Reason (R): Imbibing capacities varies with different types of organic substances.

• A. Both (A) and (R) are correct and (R) is the correct explanation to (A)
• B. Both (A) and (R) are correct but (R) is not correct explanation for (A)
• C. (A) is correct (R) is wrong
• D. (A) is wrong (R) is correct

Hint:

Proteins have a higher imbibing capacity than starch, hence pea seeds swell significantly.

Answer 1

The Correct Option is A

Step 1: Read the Assertion.
The Assertion says protein-rich pea seeds swell more during imbibition than starch-rich wheat seeds.

Step 2: Recall imbibition.
Imbibition is the soaking up of water by dry, water-loving (hydrophilic) materials, which makes seeds swell before they sprout.

Step 3: Compare proteins and starch.
Proteins attract water more strongly than starch does. So a seed full of protein takes in more water and swells more. This makes the Assertion correct.

Step 4: Read the Reason.
The Reason says the imbibing capacity is different for different types of organic substances.

Step 5: Check the Reason.
This is true. Each substance has its own affinity for water, so different materials soak up different amounts. This directly tells us why pea (protein) swells more than wheat (starch).

Step 6: Conclude.
Both statements are correct, and the Reason correctly explains the Assertion.
\[ \boxed{\text{Both (A) and (R) are correct and (R) is the correct explanation to (A)}} \]