Low temperature:
1. Preserves enzyme in a temporary inactive state
2. Denatures the enzyme
3. Makes enzyme more active
4. Does not have any affect on enzyme activity
The non protein constituent present in many enzymes is called:
1. Co-enzyme | 2. Co-factor |
3. Apoenzyme | 4. Holoenzyme |
Haem in hemoglobin:
1. is loosely bound
2. is the co-enzyme
3. is the prosthetic group
4. has no influence on activity of Hb
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 |
When we homogenize any tissues in an acid the acid soluble pool represents
1. | Cytoplasm | 2. | Cell membrane |
3. | Nucleus | 4. | Mitochondria |
A pure protein should normally have
1. | Two ends | 2. | One end |
3. | Three ends | 4. | No ends |
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 |