Q. No.Where is the respiratory electron transport system (ETS) located in plants?
1. Mitochondrial matrix
2. Outer mitochondrial membrane
3. Inner mitochondrial membrane
4. Intermembrane space
Which of the following statements regarding mitochondria is incorrect?
| 1. | Mitochondrial matrix contains single circular DNA molecule and ribosomes. |
| 2. | Outer membrane is permeable to monomers of carbohydrates, fats, and proteins. |
| 3. | Enzymes of electron transport are embedded in the outer membrane. |
| 4. | Inner membrane is convoluted with infoldings. |
Conversion of glucose to glucose-6-phosphate, the first irreversible reaction of glycolysis, is catalyzed by:
1. Phosphofructokinase
2. Aldolase
3. Hexokinase
4. Enolase
The respiratory quotient during cellular respiration would depend on the
1. Nature of enzymes involved
2. Nature of the substrate
3. Amount of carbon dioxide released
4. Amount of oxygen utilized
The three boxes in this diagram represent the three major biosynthetic pathways in aerobic respiration. Arrows represent net reactants or products.
Arrows numbered 4, 8, and 12 can all be:
| 1. | ATP | 2. | A2O |
| 3. | FAD+ or FADH2 | 4. | NADH |
Glucose fermentation by Yeast yields:
(1) Ethanol + CO2
(2) Ethanol + H2O
(3) Methanol + CO2
(4) H2O + CO2
During fermentation by Yeast, Alcohol is formed from:
(1) Proteins
(2) Sugars
(3) Muco-polysaccharides
(4) Fats
| 1. | Enzymes of the TCA cycle are present in the mitochondrial matrix. |
| 2. | Glycolysis occurs in the cytosol. |
| 3. | Glycolysis operates as long as it is supplied with NAD that can pick up hydrogen atoms. |
| 4. | Oxidative phosphorylation takes place in the outer mitochondrial membrane. |
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