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
Many elements are found in living organisms either free or in the form of compounds. Which one of the following is negligible in living organisms?
1. Silicon
2. Magnesium
3. Iron
4. Sodium
Which of the following represents uridylic acid?
1. Uracil + Ribose
2. Uridine + Phosphoric acid
3. Uracil + Phosphoric acid
4. Uridine + Ribose + Phosphoric acid
The statement "All biological catalysts are proteins" is no longer valid after the discovery of:
1. ribonuclease
2. ribozyme
3. RNAs
4. DNAs
Given below is the chemical formula of:
1. Palmitic acid
2. Glycerol
3. Galactose
4. Stearic acid
Jacob and Monod named some enzymes as allosteric whose activity is regulated by:
1. End product
2. Substrate
3. By product
4. Coenzyme
Apoenzyme is:
1. protein
2. carbohydrate
3. vitamin
4. amino acid
An example of competitive inhibition of an enzyme is the inhibition of:
1. succinic dehydrogenase by malonic acid
2. cytochrome oxidase by cyanide
3. hexokinase by glucose-6-phosphate
4. carbonic anhydrase by carbon dioxide