A basic amino acid among the following is

1. Glutamate

2. Aspartate

3. Lysine

4. Valine

Non-essential amino acids

1. Must be obtained from

2. Are synthesized in our body

3. Are not needed in our diet

4. Both (2) & (3)

Zwitterions are ionized species of

1. Acidic amino acids

2. Basic amino acids

3. Neutral amino acids

4. All of these

The number of correct statements amongst the given statements is:

I. Amino acids are substitute methanes.

II. The R group in serine is hydroxyl-methyl.

III. Arachidonic acid has 20 carbon atoms including the carboxyl carbon.

IV. Glycerol is trihydroxypropane.

V. Lecithin is a phospholipid.

 1.  2     

 2.  3

 3.  4   

 4.  5