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
A basic amino acid among the following is
1. Glutamate
2. Aspartate
3. Lysine
4. Valine
Zwitterions are ionized species of
1. Acidic amino acids
2. Basic amino acids
3. Neutral amino acids
4. All of these
Statement I: | Amino acids have a property of ionizable nature of –NH2 and –COOH groups, hence have different structures at different pH. |
Statement II: | Amino acids can exist as Zwitterionic form at acidic and basic pH. |
1. | Both Statement I and Statement II are correct. |
2. | Both Statement I and Statement II are Incorrect. |
3. | Statement I is correct but Statement II is incorrect. |
4. | Statement I is incorrect but Statement II is correct. |
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)
Statement I: | A protein is imagined as a line, the left end represented by first amino acid (C-terminal) and the right end represented by last amino acid (N-terminal). |
Statement II: | \(\alpha\) type and two subunits of ẞ type.) | Adult human haemoglobin, consists of 4 subunits (two subunits of
1. | Statement I is false but Statement II is true. |
2. | Both Statement I and Statement II are true. |
3. | Both Statement I and Statement II are false. |
4. | Statement I is true but Statement II is false. |