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 |
An insoluble biomolecule in water is-
1. | -keratin | 2. | Haemoglobin |
3. | Ribonuclease | 4. | Adenine |
Insulin regulates the metabolism of :
1. | Minerals | 2. | Amino acids |
3. | Glucose | 4. | Vitamins |
A linkage present in proteins and peptides is:
1. | 2. | ||
3. | 4. |
Sucrose can be formed by:
1. α–D–galactopyranose and α–D–glucopyranose
2. α–D–glucopyranose and β–D–fructofuranose
3. β–D–galactopyranose and α–D–fructofuranose
4. α–D–galactopyranose and β–D–fructopyranose
D(+) glucose yields an oxime with hydroxyl amine. The structure of the oxime would be:
1. | 2. | ||
3. | 4. |
1. | Aniline | 2. | Acetanilide |
3. | Benzoic acid | 4. | Glycine |
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 -D- glucose units.
A hormone that contains iodine is-
1. | Insulin | 2. | Testosterone |
3. | Adrenaline | 4. | Thyroxine |
The correct statement regarding RNA and DNA, respectively is:
1. | The sugar component in RNA is ribose and the sugar component in DNA is 2'- deoxyribose. |
2. | The sugar component in RNA is arabinose and the sugar component in DNA is ribose. |
3. | The sugar component in RNA is 2'-deoxyribose and the sugar component in DNA is arabinose. |
4. | The sugar component in RNA is arabinose and the sugar component in DNA is 2'- deoxyribose. |