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

The number of Amino group present in the lysine is

1.1

2.2

3.3

4.4

How many ionisable groups are present in Lysine?

1. Four

2. Two

3. Three

4. One

How many ionisable groups are present in Tryptophan?

1.4

2.3

3.2

4.1

Which of the following is Sulphur containing Amino acid?

1.Cytosine

2.Cystein

3.Methionine

4.Both 2 and 3

Which of the following is the most complex amino Acid

1.Histidine

2.Tryptophan

3.Tyrosine

4.Threonine

Which of the following is the optically inactive amino acid?

1.Alanine

2.Glutamic acid

3.Glycine

4.Guanine

Which of the following is an essential amino acid?

1.Isoleucine

2.lysine

3.Leucine

4.All of these

Which of the following is not  an essential amino acid?

1.Isoleucine

2.lysine

3.Leucine

4.Alanine