Question:
Assertion (A) : Pollen grains have a mucilaginous covering on them in most of the water pollinating plants.
Reason (R) : Mucilaginous covering help pollen grains to be submerged in water.
Assertion (A) : Pollen grains have a mucilaginous covering on them in most of the water pollinating plants.
Reason (R) : Mucilaginous covering help pollen grains to be submerged in water.
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Mucilage protects pollen from wetting in water; it does not make them submerge.
Updated On: Oct 22, 2026
- Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation for Assertion (A).
- Both Assertion (A) and Reason (R) are true, but Reason (R) is not correct explanation for Assertion (A).
- Assertion (A) is true, Reason (R) is false.
- Assertion (A) is false, Reason (R) is true.
Show Solution
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The Correct Option is C
Solution and Explanation
Step 1: Check the Assertion:
In many water-pollinated plants (such as Zostera and Vallisneria) the pollen grains are covered with a mucilaginous layer.
So the Assertion is true.
Step 2: Check the Reason:
The slimy covering is there to protect the pollen from getting wet and damaged in water. It is not there to help the pollen to sink.
For example, in Vallisneria the pollen floats on the water surface. So the Reason is false.
Step 3: Decide:
A is true and R is false. This is code (C).
Options (A) and (B) need R to be true, and option (D) says A is false. None of them fits.
Final Answer:
Assertion true, Reason false.
\[ \boxed{\text{(C)}} \]
In many water-pollinated plants (such as Zostera and Vallisneria) the pollen grains are covered with a mucilaginous layer.
So the Assertion is true.
Step 2: Check the Reason:
The slimy covering is there to protect the pollen from getting wet and damaged in water. It is not there to help the pollen to sink.
For example, in Vallisneria the pollen floats on the water surface. So the Reason is false.
Step 3: Decide:
A is true and R is false. This is code (C).
Options (A) and (B) need R to be true, and option (D) says A is false. None of them fits.
Final Answer:
Assertion true, Reason false.
\[ \boxed{\text{(C)}} \]
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