Statement I: | Both photosynthesis and aerobic cellular respiration occur in plant cells but only aerobic cellular respiration occurs in animal cells. |
Statement II: | Both photosynthesis and aerobic cellular respiration occur during the daylight hours, but only aerobic cellular respiration occurs at night. |
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
1. | is a small protein attached to the inner surface of the outer membrane and acts as a mobile carrier for transfer of electrons between complex III and IV. |
2. | is a small protein attached to the outer surface of the inner membrane and acts as a mobile carrier for transfer of electrons between complex III and IV. |
3. | is a lipid present within the inner membrane and acts as a mobile carrier for transfer of electrons between complex I and II. |
4. | is a lipid present within the inner membrane and acts as a mobile carrier for transfer of electrons between complex II and III. |
Which of the following takes place in the step where succinyl coenzyme A is converted to succinic acid in the TCA cycle?
1. One molecule of ATP is directly synthesized.
2. NAD+ is reduced.
3. FAD is reduced.
4. One molecule of GTP is synthesized.
Assertion (A): | Plants do not require specialized respiratory organs. |
Reason (R): | Every plant part takes care of its own gas exchange needs through stomata and lenticels. |
1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
3. | (A) is True but (R) is False. |
4. | (A) is False but (R) is True. |
I: | ATP is utilised at two steps: first in the conversion of glucose into glucose 6-phosphate and second in the conversion of fructose 6-phosphate to fructose 1, 6-bisphosphate. |
II: | ATP is produced at two steps: first in the conversion of BPGA to 3-phosphoglyceric acid (PGA), and second during the conversion of PEP to pyruvic acid. |
I: | Complex I is NADH dehydrogenase |
II: | Complex II is succinate dehydrogenase |
III: | Complex III is cytochrome b6f complex. |
Assertion (A): | It is better to consider the respiratory pathway as an amphibolic pathway rather than only as a catabolic one. |
Reason (R): | Breaking down processes within the living organism is catabolism, and synthesis is anabolism. |
1. | Both (A) and (R) are True and (R) correctly explains (A) |
2. | Both (A) and (R) are True but (R) does not correctly explains (A) |
3. | (A) is True but (R) is False |
4. | (A) is False but (R) is True |
1. | acetyl-CoA | 2. | CO2 |
3. | O2 | 4. | heat |