1. | α amino acids are substituted methanes |
2. | Only triglycerides are lipids that are both macromolecules as well as polymers |
3. | Cellulose forms secondary helical structures and can hold iodine molecules in the helical portion |
4. | Every virus will have both DNA and RNA as its genetic material |
The unique properties of each amino acid is determined by its particular:
1. R group
2. amino group
3. kinds of peptide bond
4. number of bonds to other amino acids
The simplest α amino acid is:
1. Glycine | 2. Alanine |
3. Serine | 4. Lysine |
Which of the following is not an aromatic amino acid?
1. Phenylalanine | 2. Threonine |
3. Tyrosine | 4. Tryptophan |
1. | Lysine | 2. | Histidine |
3. | Arginine | 4. | Valine |
1. | Glycine | 2. | Alanine |
3. | Serine | 4. | Lysine |
Assertion (A): | In solutions of different pH, the structure of amino acids changes. |
Reason (R): | A particular property of amino acids is the ionizable nature of –NH2 and –COOH groups. |
1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
2. | (A) is True but (R) is False. |
3. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
4. | (A) is False but (R) is True. |
Statement 1: | Certain amino acids are essential for our health. |
Statement 2: | Only such amino acids are used to make proteins in our body according to our own genetic code. |
1. | Both Statement 1 and Statement 2 are correct and Statement 2 correctly explains Statement 1 |
2. | Both Statement 1 and Statement 2 are correct but Statement 2 does not correctly explain Statement 1 |
3. | Statement 1 is correct but Statement 2 is incorrect |
4. | Statement 1 is incorrect but Statement 2 is correct |