The enzymatic machinery to partially oxidize glucose without the help of oxygen is present in:
1. All living organisms
2. All prokaryotes only
3. Prokaryotes and obligate anaerobes only
4. Facultative and obligate anaerobes only
Sucrose is converted into glucose and fructose by the enzyme:
1. Sucrase | 2. Aldolase |
3. Invertase | 4. Zymase |
How many ATP molecules are directly synthesized in glycolytic pathway from one glucose molecule?
1. 2 | 2. 4 |
3. 6 | 4. 10 |
What is the metabolic fate of pyruvate?
1. It is the end product of glycolytic pathway
2. It is reduced to acetyl CoA in the presence of oxygen
3. It depends on the cellular needs
4. It is decarboxylated in the cytosol
What is the end product of glycolysis?
1. NADH | 2. ATP |
3. G3P | 4. Pyruvate |
1. | during conversion of 1,3 biphosphoglyceric acid to 3-phosphoglyceric acid and during conversion of phosphoenolpuruvate to pyruvic acid |
2. | during conversion of glucose to glucose-6-phospate and during conversion of fructose-6-phosphate to fructose – 1,6- biphosphate |
3. | during conversion of glucose to glucose-6-phospate and during conversion of glucose-6-phosphate to fructose-6- phosphate |
4. | during conversion of 3-phosphoglyceric acid to 2-phosphoglycerate and during conversion of 2-phosphoglycerate to phosphoenolpuruvate |
The net gain of number of ATP molecules during glycolysis will be:
1. 2 | 2. 4 |
3. 6 | 4. 8 |
1. | during conversion of 1,3 biphosphoglyceric acid to 3-phosphoglyceric acid |
2. | during conversion of glyceraldehyde -3-phosphate to 1,3 biphosphoglyceric acid |
3. | during conversion of glucose to glucose-6-phospate |
4. | during conversion of 3-phosphoglyceric acid to 2-phosphoglycerate |