MHT CET · BIOLOGY · STD 11 - 6. Biomolecules

Sterols are composed of steroid nucleus and________.

A Looped, twisted and folded back peptide chain
B A spiral helix of polypeptide chain
C A double helix of polynucleotide chains
D A long hydrocarbon side chain

Verified Solution

Answer & Solution

Correct Answer

(D) A long hydrocarbon side chain

Step-by-step Solution

Detailed explanation

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.

Same subject

Match the following adaptations in Column I with the respective organisms in Column II.

	Colum I		Column II
i	Thick cuticle on leaf surface	a.	Desert lizards
ii.	Leaves reduced to spines	b.	Archaebacteria
iii.	Burrow into sand to escape from heat	c.	Desert plants
iv.	Hot springs	d.	Opuntia

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