MCQOPTIONS
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MCQOPTIONS
This section includes 15 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Identify the nitrogenous base. |
| A. | Thymine |
| B. | Uracil |
| C. | Adenine |
| D. | Guanine |
| Answer» C. Adenine | |
| 2. |
Identify the amino acid. |
| A. | Serine |
| B. | Alanine |
| C. | Valine |
| D. | Glycine |
| Answer» B. Alanine | |
| 3. |
A nucleoside consists of _____ |
| A. | sugar, phosphate |
| B. | base, phosphate |
| C. | base, sugar |
| D. | base, sugar, phosphate |
| Answer» D. base, sugar, phosphate | |
| 4. |
Which nitrogenous base is not found in RNA? |
| A. | Guanine |
| B. | Adenine |
| C. | Thymine |
| D. | Cytosine |
| Answer» D. Cytosine | |
| 5. |
Which of these makes up the cell membrane? |
| A. | Peptidoglycans |
| B. | Polysaccharides |
| C. | Glycoproteins |
| D. | Phospholipids |
| Answer» E. | |
| 6. |
Fats have higher melting points than oils. True or false? |
| A. | True |
| B. | False |
| Answer» B. False | |
| 7. |
Glycerol is also known as ______ |
| A. | dihydroxy butane |
| B. | methyl butanol |
| C. | trihydroxy propane |
| D. | 3 propanol |
| Answer» D. 3 propanol | |
| 8. |
How many carbon atoms does arachidonic acid contain? |
| A. | 16 |
| B. | 12 |
| C. | 18 |
| D. | 20 |
| Answer» E. | |
| 9. |
How many carbon atoms does palmitic acid contain? |
| A. | 16 |
| B. | 14 |
| C. | 18 |
| D. | 12 |
| Answer» B. 14 | |
| 10. |
Which of these statements is not true regarding amino acids? |
| A. | The amino group is ionizable |
| B. | The acidic group is ionizable |
| C. | Structure remains same at different pH |
| D. | Glycine is the simplest amino acid |
| Answer» D. Glycine is the simplest amino acid | |
| 11. |
Which of these amino acids is not aromatic? |
| A. | Tyrosine |
| B. | Methionine |
| C. | Tryptophan |
| D. | Phenylalanine |
| Answer» C. Tryptophan | |
| 12. |
Which of these is a neutral amino acid? |
| A. | Valine |
| B. | Histidine |
| C. | Lysine |
| D. | Aspartic acid |
| Answer» B. Histidine | |
| 13. |
Which of these is an amino acid with pH less than 7? |
| A. | Valine |
| B. | Lysine |
| C. | Glutamic acid |
| D. | Histidine |
| Answer» D. Histidine | |
| 14. |
Which amino acid has a hydroxy methyl group as R? |
| A. | Tryptophan |
| B. | Lysine |
| C. | Serine |
| D. | Leucine |
| Answer» D. Leucine | |
| 15. |
Which amino acid has a methyl group as R? |
| A. | Serine |
| B. | Glycine |
| C. | Valine |
| D. | Alanine |
| Answer» E. | |