NEET · Biology · STD 12 - 1. sexual reproduction in flowering plants

The hilum is a scar on the

A fruit, where style was present
B seed, where micropyle was present
C seed, where funicle was attached
D fruit, where it was attached to pedicel.

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Correct Answer

(C) seed, where funicle was attached

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Detailed explanation

(c) : Ovule is an integumented megasporangium found in spermatophytes which develops into seed after fertilization. An angiospermic ovule is typically an ovoid and whitish structure. It occurs inside ovary where it is attached to a parenchymatous cushion called placenta either singly or in a cluster. The ovule is stalked. The stalk is called funiculus or funicle. The point of attachment of the body of the ovule with the funiculus is known as hilum. It is present as a scar on a mature seed.

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.

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Match List \(I\) with List \(II\).

List \(I\)	List \(II\)
\(A\). Ringworm	\(I\). Haemophilus influenzae
\(B\). Filariasis	\(II\). Trichophyton
\(C\). Malaria	\(III\). Wuchereria bancrofti
\(D\) Pneumonia	\(IV\). Plasmodium vivax

Choose the correct answer from the options given below:

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