Entry Test MCQ :: Bioenergetics
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| 21. |
Thylakoids in chloroplasts are stacked into |
| A. |
Grana |
B. |
Stroma |
| C. |
Nucleus |
D. |
None of these |
Answer: Option A
Explanation:
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| 22. |
In all plants the major sites of phosynthesis are |
| A. |
Leaves respire and utilize O2 and release CO2. |
B. |
Stems |
| C. |
Roots |
D. |
Branches |
Answer: Option A
Explanation:
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| 23. |
The dense fluid filled region in the chloroplast is |
| A. |
Grana |
B. |
Stroma |
| C. |
Thylakoid |
D. |
None of these |
Answer: Option B
Explanation:
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| 24. |
Chlorophylls are found embedded in the ______ membranes |
| A. |
Stroma |
B. |
Grana |
| C. |
Thylakoid |
D. |
Intergrana |
Answer: Option C
Explanation:
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| 25. |
Xanthophylls are ______ pigments |
Answer: Option A
Explanation:
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| 26. |
Chlorophylls mainly absorb ____ wavelengths |
| A. |
Orange - blue |
B. |
Violet - red |
| C. |
Yellow - orange |
D. |
Orange - red. |
Answer: Option D
Explanation:
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| 27. |
Deficiency of ________ causes yellowing in plants |
| A. |
Magnesium |
B. |
Iron |
| C. |
Chlorine |
D. |
Oxygen |
Answer: Option A
Explanation:
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| 28. |
The chlorophyll molecule is embedded in the core of thylakoid membrane which acts as |
| A. |
Hydrophilic |
B. |
Hydrophobic |
| C. |
Both of these |
D. |
None of these |
Answer: Option B
Explanation:
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| 29. |
The most important photosynthetic pigment |
| A. |
Chlorophyll a |
B. |
Chlorophyll b |
| C. |
Xanthophyll |
D. |
Carotenes |
Answer: Option A
Explanation:
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| 30. |
Bacteriochlorophylls does not include |
| A. |
Chlorophyll e |
B. |
Chlorophyll d |
| C. |
Chlorophyll a |
D. |
Chlorophyll c |
Answer: Option C
Explanation:
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