What is the co-factor for the proteolytic enzyme, carboxypeptidase?
1. | Molybdenum | 2. | Manganese |
3. | Zinc | 4. | Copper |
Most of the coenzymes contain:
1. Metal ions | 2. FMN and FAD |
3. Ribonucleoproteins | 4. Vitamins |
Most common element present in human body is:
1. | Oxygen | 2. | Carbon |
3. | Hydrogen | 4. | Sulfur |
Which of the following is not an aromatic amino acid?
1. Phenylalanine | 2. Threonine |
3. Tyrosine | 4. Tryptophan |
Formation of glycosidic bond represents:
1. Dehydration | 2. Hydrolysis |
3. Dehydrogenation | 4. Isomerization |
Consider the following statements:
I: | Glycine is the simplest amino acid, with a hydrogen atom as its side chain (R group). |
II: | Tryptophan is an aromatic amino acid. |
III: | Lysine is an acidic amino acid. |
1. Only I and II are correct
2. Only I and III are correct
3. Only II and III are correct
4. I, II and III are correct
Sugars are technically called carbohydrates, referring to the fact that their formulae are only multiples of C(H2O). Hexose therefore has six carbons, twelve hydrogen and six oxygen atoms. Glucose is a hexose. Choose from among the following another hexose.
1. | Fructose | 2. | Erythrose |
3. | Ribulose | 4. | Ribose |
When we homogenize any tissues in an acid the acid soluble pool represents
1. | Cytoplasm | 2. | Cell membrane |
3. | Nucleus | 4. | Mitochondria |
What level of protein organization structure explains the 3-D shape of an enzyme?
1. primary structure | 2. tertiary structure |
3. secondary structure | 4. quaternary structure |