Which of the following is called as imino acid?

1.Histidine

2.Lysine

3.Leucine

4.proline

Out of 20 proteinaceous amino acids how many of them are laevorotatory(l-form).

1.All 20

2.10

3.19

4.18

Which of the following is semi- essential amino acid?

1.Arginine

2.Histidine

3.Aspartic acid

4.Both 1 and 2

Amide bond is found in all except

1.Enzymes

2.Polypeptides

3.Proteins

4.Amino acid

Which of the following group is present in Fatty acid

1.Carboxyl group

2.Carbonyl group

3.Hydroxyl group

4.Both 2 and 3

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 not true about Arachidonic acid?

1.It is a saturated fatty acid

2.It has 20 Carbons excluding Carboxyl carbon

3.It has no double and triple bonds between carbon atoms

4.All of these

In triglycerides, glycerol is linked to fatty acid with a/an

1.Ether bond
2.Ester bond
3.Amide bond
4.Glycosidic bond

Which of the following is true about Glycerol

1.It is trihydroxy propane

2.Fatty acids are esterified with glycerol

3.It forms the backbone of phospholipids

4.All of these

Which of the following is true about Lecithin?

1.It is made of 2 fatty acids + glycerol+ Phosphoric acid+ Choline

2.It is made of 2 fatty acids + glycerol + Choline

3.It is made of 3 fatty acids + glycerol+ Phosphoric acid+ Choline

4.It is made of 2 fatty acids + glycerol+ Phosphoric acid+ Serine