| Statement I: | Both photosynthesis and aerobic cellular respiration occur in plant cells but only aerobic cellular respiration occurs in animal cells. | 
| Statement II: | Both photosynthesis and aerobic cellular respiration occur during the daylight hours, but only aerobic cellular respiration occurs at night. | 
| I: | Glucose | 
| II: | Fructose | 
| 1. | Only I | 2. | Only II | 
| 3. | Both I and II | 4. | Neither I nor II | 
At which step, glycolysis reaches the break-even point where 2 molecules of ATP are consumed, and 2 new molecules are synthesized?
| 1. | Splitting of fructose-6-phosphate to two trioses | 
| 2. | Conversion of 1,3 biphosphoglycerate to 3 - phosphoglycerate | 
| 3. | Conversion of GADP to 1,3 biphosphogycerate | 
| 4. | Conversion of DHAP to GADP | 
Glycolysis is a sequence of ________ reactions involving ___________ intermediate compounds:
1. 10, 5
2. 10, 9
3. 10, 10
4. 9, 10
| 1. | Conversion of Glucose into Glucose-6-phospahte | 
| 2. | Conversion of Fructose-6-phosphate into Fructose 1,6-biphospahte | 
| 3. | Conversion of 1,3 biphoshoglyceric acid into 3-phosphoglyceric acid | 
| 4. | Conversion of Phosphoenol pyruvate into Pyruvic acid | 
When oxygen is not available to a cell, NADH formed during glycolysis:
| 1. | does not undergo any change as there is no need for the cell to regenerate NAD+ | 
| 2. | passes electrons to the electron transport system | 
| 3. | passes hydrogen atoms to pyruvic acid | 
| 4. | passes electrons and hydrogen atoms to acetyl coA | 
| Assertion (A): | Fermentation is a type of anaerobic respiration where glucose is partially oxidized to produce energy. | 
| Reason (R): | Fermentation results in the production of ethanol or lactic acid without the use of oxygen. | 
| 1. | Both (A) and (R) are True and (R) correctly explains (A). | 
| 2. | Both (A) and (R) are True but (R) does not correctly explain (A). | 
| 3. | (A) is True, (R) is False. | 
| 4. | Both (A) and (R) are False. |