Q. No.
| 1. | D is the acidic amino acid - glutamic acid |
| 2. | C is an aromatic amino acid - tryptophan |
| 3. | A is the C-terminal amino acid and D is N terminal amino acid |
| 4. | A is the sulphur containing amino acid-methionine |
1. Phosphate linkages
2. H-bonding
3. Glycosidic linkages
4. Peptide linkages
The correct statements regarding "Denaturation" are:
| (a) | Denaturation of proteins causes the loss of secondary and tertiary structures of the protein. |
| (b) | Denaturation leads to the conversion of a double strand of DNA into a single strand. |
| (c) | Denaturation affects the primary structure which gets distorted. |
1. (a), (b) and (c)
2. (b) and (c)
3. (a) and (c)
4. (a) and (b)
Which of the following is not a fat-soluble vitamin?
1. Vitamin A
2. Vitamin B complex
3. Vitamin D
4. Vitamin E
Fructose reduces Tollen's reagent due to:
| 1. | Primary alcoholic group |
| 2. | Secondary alcoholic group |
| 3. | Enolisation of fructose followed by conversion to aldehyde by base |
| 4. | Asymmetric carbon |
Which one of the following is a peptide hormone?
1. Glucagon
2. Testosterone
3. Thyroxin
4. Adernaline
During the process of digestion, the proteins present in food materials are
hydrolysed to amino acids as shown below.
Proteins \(\xrightarrow[]{\textbf{Enzyme(A)}}\mathrm{}\) Polypeptides \(\xrightarrow[]{\textbf{Enzyme(B)}}\mathrm{}\) Amino acids
Enzymes (A) and (B) are respectively:
| 1. | Amylase and maltase | 2. | Diastase and lipase |
| 3. | Pepsin and trypsin | 4. | Invertase and zymase |
RNA and DNA are chiral molecules due to:
1. L- sugar component
2. Chiral bases
3. Chiral phosphate exter unit
4. D- sugar component
Which one of the following vitamins is water-soluble?
| 1. | Vitamin-B | 2. | Vitamin-E |
| 3. | Vitamin-K | 4. | Vitamin-A |
In DNA, the complementary bases are:
1. Adenine and thymine; guanine and cytosine
2. Adenine and thymine; guanine and uracil
3. Adenine and guanine, thymine and cytosine
4. Uracil and adenine; cytosine and guanine
© 2026 GoodEd Technologies Pvt. Ltd.