Which of the following describes the graph correctly?
(1) Endothermic reaction with energy A in the presence of enzyme and B in the absence of enzyme
(2) Exothermic reaction with energy A in the presence of enzyme and B in the absence of enzyme
(3) Endothermic reaction with energy A in the absence of enzyme and B in the presence of enzyme
(4) Exothermic reaction with energy A in the absence of enzyme and B in the presence of enzyme
Which one is the most abundant protein in the animal world?
1. Trypsin
2. Haemoglobin
3. Collagen
4. Insulin
A non-proteinaceous enzyme is
(1) lysozyme
(2) ribozyme
(3) ligase
(4) deoxyribonuclease
Which of the following is not a polymeric substance?
(1) Nucleic acid
(2) Proteins
(3) Polysaccharides
(4) Lipids
Which one of the following statements is correct with reference to enzymes?
1. Holoenzyme= Apoenzyme+Coenzyme
2. Coenzyme= Apoenzyme+Holoenzyme
3. Holoenzyme= Coenzyme+ CO-factor
4. Apoenzyme=Holoenzyme+Coenzyme
The two functional groups characteristic of sugars are:
1. | Hydroxyl and methyl | 2. | Carbonyl and methyl |
3. | Carbonyl and phosphate | 4. | Carbonyl and hydroxyl |
1. | Endothermic reaction with energy A in the presence of enzyme and B in the absence of enzyme |
2. | Exothermic reaction with energy A in the presence of enzyme and B in the absence of enzyme |
3. | Endothermic reaction with energy A in the absence of enzyme and B in the presence of enzyme |
4. | Exothermic reaction with energy A in the absence of enzyme and B in the presence of enzyme |
The chitinous exoskeleton of arthropods is formed by the polymerization of?
1. Keratine sulphate and chondroitin sulphate
2. D-glucosamine
3. N-acetyl glucosamine
4. Lipoglycans
Which of the following biomolecules have a phosphodiester bond?
1. Fatty acids in a diglyceride
2. Monosaccharides in a polysaccharide
3. Amino acids in a polypeptide
4. Nucleic acids in a nucleotide