MHT CET · BIOLOGY · STD 12 - 1. Reproduction in Lower and Higher Plants

After germination of a dicotyledonous endospermic seed, the cotyledons act as _________ organ.

A food storage
B photosynthetic
C germinating
D haustorial

Verified Solution

Answer & Solution

Correct Answer

(B) photosynthetic

Step-by-step Solution

Detailed explanation

The cotyledons in some non-endospermic seeds act as a food storage and in others they are the first photosynthetic organs.

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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	Column I (Part of the alimentary canal)		Column II (length)
i.	Duodenum	a.	1.5 m
ii.	Jejunum	b.	26 cm
iii.	Ileum	c.	25 m
iv.	Large intestine	d.	3.5 m

	Column I		Column II
A.	Pectinase	i.	Saccharomyces cerevisiae
B.	Lipase	ii.	Aspergillus niger
C.	Invertase	iii.	Trichoderma konigii
D.	Cellulase	iv.	Candida lipolytica