How many types of proteinaceous amino acids are there?

1.20

2.more than 20

3.less than 20

4.Both 1 and 3

Which group of the amino acid contributes essentially to the chemical and physical properties of amino acids?

1.Amino group

2.Carboxyl group

3.Alkyl group (R group)

4.All of these

Which of the following is true about Lipids

1.It is a polymer of Fatty acids and Glycerol

2.Water soluble

3.Fatty acids can be saturated or unsaturated

4.both 1 and 3

Which of the following is true about Cholesterol?

1. It contains four fused hydrocarbon rings

2. Organic molecule

3. Hydroxyl group is present

4. All of these

Which of the following is incorrect.

1.Nucleotides- Nucleosides = phosphate

2.Nucleosides + Phosphate = Nucleotides

3.Nucleosides – Nucleotides = Phosphate

4.Both 1 and 2

Which of the following is true?

1. All the elements present in a sample of earth’s crust are also present in a sample of living tissue

2. Carbon and Hydrogen are  present in more amount in any living organism than earth’s crust.

3. Carbon and Hydrogen are present in more in living organisms than in non living matter.

4. All of the above

Which of the following element is present in negligible amount in human body?
1. Magnesium
2. Suphur
3. Silicon
4. Sodium

Which of the following is true?

Enzymes work at optimum temperature. Over a range of 0 to 40⁰C, what would happen to the rate of enzyme controlled reactions for every 10⁰C rise in temperature?

1. The rate doubles itself

2. Decreases by half

3. No effect

4. First increases then decreases

Which of the following is true about carbonic anhydrase?

1. It accelerates the rate of  formation of carbonic acid by 10 million times.

2. In its absence only 200 molecules of carbonic acid is formed in an hour.

3. It forms 600,000 molecules  of carbonic acid in one second.

4. All of these