Q. No.Sucrose is converted into glucose and fructose by the enzyme:
1. Maltase
2. Zymase
3. Isomerase
4. Invertase
2. Zymase
3. Isomerase
4. Invertase
The co-factor required for the activity of pyruvate dehydrogenase is:
1. Zinc
2. Magnesium
3. Manganese
4. Copper
In Kreb's cycle, a molecule of GTP is produced during the conversion of:
1. Citrate into Ketoglutarate
2. Succinyl-CoA into succinate
3. Succinate into malate
4. Malate into oxaloacetate
For each ATP produced, how many H passes through F0 from the intermembrane space to the matrix down the electrochemical proton gradient?
1. 1
2. 2
3. 3
4. 4
If fatty acids were to be respired, they would first be degraded to:
| 1. | Glucose-6 phosphate |
| 2. | Pyruvate |
| 3. | Acetyl-CoA |
| 4. | Alpha ketoglutarate |
In the absence of oxygen, the primary purpose of fermentation is to:
| 1. | produce amino acids for protein synthesis |
| 2. | generate a proton gradient for ATP synthesis |
| 3. | oxidize glucose to generate reduce electron carriers |
| 4. | regenerate NAD+ from NADH allowing glycolysis to continue |
When proteins are used as respiratory substrates, the respiratory quotient would be about:
1. 1.2
2. 1.0
3. 0.9
4. 0.7
The mitochondrial electron transport chain is located in:
1. Outer membrane
2. Inner membrane
3. Inter membrane space
4. Matrix
The primary role of oxygen in cellular respiration is to:
| 1. | yield energy in the form of ATP as it is passed down the respiratory chain. |
| 2. | act as an acceptor for electrons and hydrogen, forming water |
| 3. | combine with carbon, forming CO2. |
| 4. | combine with lactate, forming pyruvate. |
Which of the following processes makes direct use of oxygen?
1. Glycolysis
2. Fermentation
3. Kreb's citric acid cycle
4. Electron transport
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