| Assertion (A): | Respiratory pathway is amphibolic pathway. |
| Reason (R): | During respiration, there is breakdown of substances as well as synthesis of substances from respiratory intermediates. |
| 1. | Both (A) and (R) are True and (R) correctly explains (A) |
| 2. | Both (A) and (R) are True but (R) does not correctly explains (A) |
| 3. | (A) is True but (R) is False |
| 4. | Both (A) and (R) are False |
| 1. | All amino acids directly enter glycolysis. |
| 2. | Amino acids bypass glycolysis and enter directly at complex IV of the ETS. |
| 3. | Amino acids convert directly to glucose before respiration. |
| 4. | Amino acids must first undergo deamination, entering at various stages like pyruvate or acetyl CoA in the Krebs cycle. |
Which of the following statements is incorrect?
| 1. | Glucose is the flavoured substrate for respiration |
| 2. | All carbohydrates are usually first converted into glucose before they are used for respiration |
| 3. | Other respiratory substrates are also respired but they do not enter the respiratory pathway at very first step |
| 4. | Fats directly enter the respiratory pathway |
Glycerol enters the respiratory pathway after being converted to:
| 1. | PGAL | 2. | PEP |
| 3. | 1, 3 – BPG | 4. | 2 – PG |
For the synthesis of Fatty acids, which of the following substrates will be used?
1. Acetyl CoA
2. PGAL
3. BPGA
4. Pyruvic Acid