Cellulose upon acetylation with excess acetic anhydride/H₂SO₄ (catalytic) gives cellulose triacetate whose structure is –

1. Anomers

2. Epimers

3. Enantiomers

4. Diastereoisomers

The non-essential amino acid among the following is:

Enzymes that utilize ATP in phosphate transfer require an alkaline earth metal (M) as the cofactor. M is:

The incorrect statement about carbohydrates is : 

1. Maltose is a reducing sugar.

2. They are stored in the animal body as glycogen.

3. Amylopectin constitutes about 15-20% Of starch.

4. Cellulose is composed of only $\mathrm{\beta }$-D- glucose units.

Waxes are esters of:

1. Glycerol and fatty acid.

2. Long-chain alcohols and long-chain fatty acids.

3. Glycerol.

4. Long-chain alcohol.

The incorrect statement among the following options is: 

1. Chlorophyll is responsible for the synthesis of carbohydrates in plants.

2. The compound formed by the addition of oxygen to hemoglobin is called oxyhemoglobin.

3. Acetylsalicylic acid is known as aspirin.

4. The metal ion present in vitamin B12 is ${\mathrm{Mg}}^{++}$

An optically inactive amino acid is-

A linkage present in proteins and peptides is:

1.		2.
3.		4.

An acids among the followingthat acts as vitamin is:

1. Benzoic acid

2. Ascorbic acid

3. Oxalic acid

4. Formic acid