NEET · Biology · STD 11 - 9. Biomolecules

A phosphoglyceride is always made up of

A a saturated or unsaturated fatty acidesterified to a glycerol molecule to which a phosphate group is also attached.
B a saturated or unsaturated fatty acid esterified to a phosphate group which is also attached to a glycerol molecule.
C only a saturated fatty acid esterified to a glycerol molecule to which a phosphate group is also attached.
D only an unsaturated fatty acid esterified to a glycerol molecule to which a phosphate group is also attached.

Verified Solution

Answer & Solution

Correct Answer

(A) a saturated or unsaturated fatty acidesterified to a glycerol molecule to which a phosphate group is also attached.

Step-by-step Solution

Detailed explanation

(a) : Phosphoglycerides are the triesters of fatty acids (either saturated or unsaturated) and glycerol to which a phosphate group is also attached.

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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List -	List - II
A. The Evil Quartet	(i) Cryopreservation
B. Ex situ conservation	(ii) Alien species invasion
C. Lantana camara	(iii) Causes of biodiversity losses
D. Dodo	(iv) Extinction

List \(- I\)	List \(- II\)
(a) Protein	(i) \(C = C\) double bonds
(b) Unsaturated fatty acid	(ii) Phosphodiester bonds
(c) Nucleic acid	(iii) Glycosidic bonds
(d) Polysaccharide	(iv) Peptide bonds