Biology
Assertion (A): Tracheids are made up of elongated dead cells with large cavities without any contents.
Reason (R) : Tracheids provide mechanical support by developing various types of thickenings in their walls.
- Both A and R are true and R is the correct explanation of A.
- Both A and R are true but R is not the correct explanation of A.
- A is true but R is false.
- A is false but R is true.
Tissues
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Answer
Both A and R are true but R is not the correct explanation of A.
Reason — A is true because tracheids are elongated, dead cells with large empty cavities.
R is true because tracheids have lignified wall thickenings and therefore provide mechanical support. However, R does not explain A.
Therefore, Both A and R are true but R is not the correct explanation of A is the correct option.
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