1. | Thyroxine | 2. | Oxypurin |
3. | Insulin | 4. | Progesterone |
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
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 |
Cellulose is a straight-chain polysaccharide composed of only :
1. D-glucose units joined by - glycosidic linkage.
2. D-glucose units joined by - glycosidic linkage.
3. D-galactose units joined by - glycosidic linkage.
4. D-galactose units joined by - glycosidic linkage.
An insoluble biomolecule in water is-
1. | -keratin | 2. | Haemoglobin |
3. | Ribonuclease | 4. | Adenine |
The human body does not produce :
1. | DNA | 2. | Vitamins |
3. | Hormones | 4. | Enzymes |
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. |
An optically inactive amino acid is-
1. | Lactic acid | 2. | Serine |
3. | Alanine | 4. | Glycine |
Enzymes that utilize ATP in phosphate transfer require an alkaline earth metal (M) as the cofactor. M is:
1. | Sr | 2. | Be |
3. | Mg | 4. | Ca |