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The statement "All biological catalysts are proteins" is no longer valid after the discovery of: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

Which of the following glucose transporters is insulin-dependent?

1. GLUT IV

2. GLUT I

3. GLUT II

4. GLUT III