The curve given below shows enzymatic activity with relation to three conditions (pH, temperature and substrate concentration) what do the two axis (X and Y) represent?
X-axis |
Y-axis |
|
(a) |
Temperature |
Enzyme activity |
(b) |
Substrate concentration |
Enzyme activity |
(c) |
Enzyme activity |
Temperature |
(d) |
Enzyme activity |
pH |
1. (a)
2. (b)
3. (c)
4. (d)
1. pythium
2. Xanthomonas
3. Pseudomonas
4. Saccharomyces
(A) | Easily translocated |
(B) | Chemically non-reactive |
(C) | Easily digested by animals |
(D) | Osmotically inactive |
(E) | Synthesized during photosynthesis |
1. (B) and (C)
2. (B) and (D)
3. (A), (C), and (E)
4. (A) and (E)
A competitive inhibitor of succinic dehydrogenase is:
1. | malonate | 2. | oxaloacetate |
3. | α-ketoglutarate | 4. | malate |
The biological organisation starts with:
1. Submicroscopic molecular level
2. Cellular level
3. Organisms level
4. Atomic level
Which one of the following is a fat-soluble vitamin and its related deficiency disease?
1. Ascorbic acid - Scurvy
2. Retinol - Xerophthalmia
3. Cobalamine - Beri-Beri
4. Calciferol - Pellagra
An organic substance bound to an enzyme and essential for its activity is called:
1. coenzyme
2. holoenzyme
3. apoenzyme
4. isoemzyme
Which one of the following structural formulae of two organic compounds are correctly identified along with its related function?
1. A- Triglyceride – a major source of energy
2. B- Uracil – a component of DNA
3. A- Lecithin – a component of cell membrane
4. B- Adenine – a nucleotide that makes up nucleic acids
Which one out of A-D given below correctly represents the structural formula of the basic amino acid?
A | B |
C | D |
1. | C | 2. | D |
3. | A | 4. | B |
Which one is the most abundant protein in the animal world?
1. Trypsin
2. Haemoglobin
3. Collagen
4. Insulin