Energy released by oxidation in respiration:
1. can use only carbohydrates as respiratory substrate
2. is all released free into the cell
3. is all released in a single step
4. cannot be used directly
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyPlants can get along without respiratory organs. What may be the reason/s for this?
I. Each plant part takes care of its own gas exchange needs
II. Plants do not present great demands for gas exchange
1. Both I and II | 2. Only I |
3. Only II | 4. Neither I nor II |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIn Section 12.1, it is written that most cells of a plant have at least a part of their surface in contact with air. The arguments in favor of this statement include all except:
1. Flattened leaves
2. Closely packed parenchyma in most regions
3. Presence of lenticels
4. Mostly dead cells in the interior
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich of the following exhibits the highest rate of respiration?
1. Growing shoot apex | 2. Germinating seed |
3. Root tip | 4. Leaf bud |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyConsider the two statements:
Statement I: | Inside a cell, the glucose molecule is oxidised not in one step but in several small steps. |
Statement II: | Some steps will be just large enough such that energy liberated can be coupled to ATP synthesis. |
1. | Both Statement I and Statement II are correct and Statement II explains Statement I |
2. | Both Statement I and Statement II are correct but Statement II does not explain Statement I |
3. | Statement I is correct but Statement II is incorrect |
4. | Statement I is incorrect but Statement II is correct |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology