The chemiosmotic coupling hypothesis of oxidative phosphorylation proposes that Adenosine Triphosphate (ATP) is formed because
1. | high energy bonds are formed in mitochondrial proteins |
2. | ADP is pumped out of the matrix into the intermembrane space |
3. | a proton gradient forms across the inner membrane |
4. | there is a change in the permeability of the inner mitochondrial membrane toward Adenosine Diphosphate (ADP) |
Oxidative phosphorylation is
1. | formation of ATP by transfer of phosphate group from a substrate to ADP |
2. | oxidation of phosphate group in ATP |
3. | addition of phosphate group to ATP |
4. | formation of ATP by energy release from electrons removed during substrate oxidation. |
In the given diagrammatic representation of ATP synthesis in mitochondria, A, B and C are respectively:
1. 2 , and
2. 2 , and
3. 4 , and
4. 4 , and
Read the following statements:
(a) part of ATPase is associated with breakdown of proton gradient
(b) A H-carrier contributes in creation of proton gradient
(c) Movement of electrons in ETS is coupled to pumping of protons into the lumen
(d) Formation of NADPH + is related with the creation of proton gradient
How many of the above statements are correct?
1. Two
2. One
3. Four
4. Three
Match the following columns.
Column I |
Column II |
A. Molecular oxygen B. Electron acceptor C. Pyruvate dehydrogenase D. Decarboxylation |
1. - ketoglutaric acid 2. Hydrogen acceptor 3. Cytochrome-c 4. Acetyl Co - A |
Codes
Options: | A | B | C | D |
1. | 2 | 3 | 4 | 1 |
2. | 3 | 4 | 2 | 1 |
3. | 2 | 1 | 3 | 4 |
4. | 4 | 3 | 1 | 2 |
The end product of oxidative phosphorylation is
1. NADH
2. oxygen
3. ADP
4. ATP+ H2O
The ultimate electron acceptor of respiration in an aerobic organism is
1. cytochrome
2. oxygen
3. hydrogen
4. glucose
FADH2 is oxidized by
1. | Complex I | 2. | Complex II |
3. | Complex III | 4. | Complex IV |