MCQOPTIONS
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MCQOPTIONS
This section includes 16 Mcqs, each offering curated multiple-choice questions to sharpen your Biochemistry knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Number of chiral centers in isoleucine is? |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» C. 3 | |
| 2. |
An amino acid that yields acetoacetyl CoA during the catabolism of its carbon skeleton will be considered as __________ |
| A. | Glycogenic |
| B. | Ketogenic |
| C. | Both glycogenic and ketogenic |
| D. | Essential |
| Answer» C. Both glycogenic and ketogenic | |
| 3. |
Which among the following is both glucogenic and ketogenic? |
| A. | Isoleucine |
| B. | Leucine |
| C. | Lysine |
| D. | Histidine |
| Answer» B. Leucine | |
| 4. |
If pK1 = 2.34 and pK2 = 9.60, then the isoelectric point pI is? |
| A. | 5.87 |
| B. | 5.97 |
| C. | 3.67 |
| D. | 11.94 |
| Answer» C. 3.67 | |
| 5. |
The two amino acids having R groups with a negative net charge at pH 7.0 are ___________ |
| A. | Aspartate and glutamate |
| B. | Arginine and histidine |
| C. | Cysteine and methionine |
| D. | Proline and valine |
| Answer» B. Arginine and histidine | |
| 6. |
Identify the amino acids containing nonpolar, aliphatic R groups. |
| A. | Phenylalanine, tyrosine, and tryptophan |
| B. | Glycine, alanine, leucine |
| C. | Lysine, arginine, histidine |
| D. | Serine, threonine, cysteine |
| Answer» C. Lysine, arginine, histidine | |
| 7. |
AN_AMINO_ACID_THAT_YIELDS_ACETOACETYL_COA_DURING_THE_CATABOLISM_OF_ITS_CARBON_SKELETON_WILL_BE_CONSIDERED?$ |
| A. | Glycogenic |
| B. | Ketogenic |
| C. | Both glycogenic and ketogenic |
| D. | Essential |
| Answer» C. Both glycogenic and ketogenic | |
| 8. |
Number_of_chiral_centers_in_isoleucine_is |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» C. 3 | |
| 9. |
Which among the following is both glucogenic and ketogenic? |
| A. | Isoleucine |
| B. | Leucine |
| C. | Lysine |
| D. | Histidine |
| Answer» B. Leucine | |
| 10. |
Which of the following is an imino acid? |
| A. | Alanine |
| B. | Glycine |
| C. | Proline |
| D. | Serine |
| Answer» D. Serine | |
| 11. |
Which of the following is an essential amino acid? |
| A. | Cysteine |
| B. | Asparagine |
| C. | Glutamine |
| D. | Phenylalanine |
| Answer» E. | |
| 12. |
Which among the following is a non-essential amino acid? |
| A. | Serine |
| B. | Threonine |
| C. | Lysine |
| D. | Histidine |
| Answer» B. Threonine | |
| 13. |
Which of the following is a true statement? |
| A. | Tryptophan and tyrosine are significantly more polar than phenylalanine |
| B. | Leucine is commonly used as an ingredient in the buffers of SDS page |
| C. | Aspartate is an essential amino acid |
| D. | Lysine is a non-essential amino acid |
| Answer» B. Leucine is commonly used as an ingredient in the buffers of SDS page | |
| 14. |
If pK1 = 2.34 and pK2 = 9.60, then the isoelectric point pI is |
| A. | 5.87 |
| B. | 5.97 |
| C. | 3.67 |
| D. | 11.94 |
| Answer» C. 3.67 | |
| 15. |
The two amino acids having R groups with a negative net charge at pH 7.0 are |
| A. | Aspartate and glutamate |
| B. | Arginine and histidine |
| C. | Cysteine and methionine |
| D. | Proline and valine |
| Answer» B. Arginine and histidine | |
| 16. |
Identify the amino acids containing nonpolar, aliphatic R groups |
| A. | Phenylalanine, tyrosine, and tryptophan |
| B. | Glycine, alanine, leucine |
| C. | Lysine, arginine, histidine |
| D. | Serine, threonine, cysteine |
| Answer» C. Lysine, arginine, histidine | |