Let us say there are 30 NADH and 12 in a mitochondrion. What is the maximum number of ATP generated if all dinucleotides are used in chemiosmosis?
1. | 42 | 2. | 84 |
3. | 114 | 4. | 142 |
The correct chronological sequence of the stages of the glycolytic pathway is:
1. | glucose priming, cleavage and rearrangement, oxidation, ATP generation |
2. | cleavage and rearrangement, glucose priming, ATP generation, oxidation |
3. | glucose priming, oxidation, cleavage and rearrangement, ATP generation |
4. | ATP generation, oxidation, glucose priming, cleavage and rearrangement |
Chemiosmosis is coupled to energy storage by:
1. | NADH | 2. | ADP |
3. | cytochromes | 4. | ATP synthase |
Ubiquinone is:
1. a protein in the mitochondrial electron transport chain
2. a substrate for synthesis of FADH
3. a vitamin used as coenzyme in Krebs cycle
4. a small hydrophobic coenzyme
A multienzyme complex amongst the following would be:
1. | sucrase |
2. | |
3. | hexokinase |
4. | pyruvate dehydrogenase |
The processes that occur in the cytosol of a eukaryotic cell is/are:
I. glycolysis
II. fermentation
III. oxidation of pyruvate to acetyl CoA
1. | Only I | 2. | I and II only |
3. | I and III only | 4. | I, II, III and IV |
The corresponding yield of ATP from one molecule of is:
1. | 2 | 2. | 3 |
3. | 4 | 4. | 6 |
All the following will normally occur during the electron flow in ETS in mitochondria except:
1. NADH and are oxidized.
2. the pH of the matrix decreases.
3. the electrons lose free energy.
4. an electrochemical gradient is formed.
Fats and proteins can also provide us energy. For this to happen:
1. Fats and proteins must first be converted to glucose
2. Fats and proteins must enter separate catabolic pathways of their own
3. Fats and proteins must be modified to forms that can enter the glucose metabolic pathway
4. Fats must first be converted to proteins that can enter the glucose metabolic pathway
Yeast cells are able to regenerate regenerated from NADH during the :
1. reduction of acetaldehyde to ethyl alcohol
2. oxidation of pyruvate to acetyl CoA
3. reduction of pyruvate to form lactate
4. oxidation of NAD+ in the citric acid cycle