Assertion (A): | Dietary proteins are the source of essential amino acids. |
Reason (R): | All essential amino acids are aromatic. |
1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
3. | (A) is True but (R) is False. |
4. | Both (A) and (R) are False. |
I: | Cellulose does not contain complex helices. |
II: | Inulin is a polymer of fructose. |
III: | Left end of glycogen is the reducing end |
1. | Zinc is a cofactor for carboxypeptidase |
2. | NADP contains the vitamin cyanocobalamin |
3. | Malonate is a competitive inhibitor of Succinic dehydrogenase |
4. | Haem is the prosthetic group in peroxidase |
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 |
1. | The positional information of amino acids in a protein is called the primary structure. |
2. | Alpha helix is a secondary structure and beta pleated sheet is a tertiary structure of a protein. |
3. | Tertiary structure is absolutely necessary for the many biological activities of proteins. |
4. | Quaternary structures are seen in proteins made of more than one polypeptide chain. |
The simplest α amino acid is:
1. Glycine | 2. Alanine |
3. Serine | 4. Lysine |
1. | Glycine | 2. | Alanine |
3. | Serine | 4. | Lysine |
1. | Lysine | 2. | Histidine |
3. | Arginine | 4. | Valine |
1. Glycerol 2. Fatty acid 3. Sphingosine 4. Cerebroside |
I: | Gingelly oil remains as oil in winters. |
II: | The fatty acid components of the oil are all saturated. |
1. | Both I and II are correct and II correctly explains I |
2. | Both I and II are correct but II does not correctly explain I |
3. | I is correct but II is incorrect |
4. | I is incorrect but II is correct |