| 1 |
The word photosynthesis is a combination of two ............. words. |
- A. Greek
- B. Latin
- C. German
- D. Freech
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| 2 |
When we work hard we suffer form muscle fatigue muscle cells. |
- A. Carry out aerobic respiration and so accumulate more CO<sub>2</sub>
- B. Carry out anaerobic respiration and so accumulate lactic acid
- C. Carry out aerobic respiration at faster rate and so accumulate lactic acid
- D. Carry out aerobic respiration at faster rate and so are tired
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| 3 |
In dark reaction first of all CO<sub>2</sub> combines with: |
- A. 5-carbon compound
- B. 6-carbon compound
- C. 3-carbon compound
- D. Already present glucose
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| 4 |
Most of the energy during ATP formation escapes in the form of: |
- A. Waves
- B. Bonds
- C. Heat
- D. Chemical
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| 5 |
..................... Organisms cannot carry out photosynthesis. |
- A. Autotrophic
- B. Heterotrophic
- C. Both
- D. None
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| 6 |
In which component of the leaf cells, chlorophill is present? |
- A. Stroma
- B. Thylakoids
- C. Plasma membrane
- D. Cytoplasm
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| 7 |
When a plant was kept in darkness for many days, many days, its leaves turned yellow. Why? |
- A. Leaves could not get oxygen and so there was no photosynthesis
- B. Leaves could not get light and so there was no respiration
- C. Leaves could not get oxygen and so there was no respiration
- D. Leaves could not get light and so there was no photosynthesis
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| 8 |
How many molecules of CO<sub>2</sub> are produced when krebs cycle operates once? |
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| 9 |
Oxygen takes part in aerobic respiration in: |
- A. Glycolysis
- B. Link step between Glycolysis and krebs cycle
- C. Electron transport chain
- D. Krebs cycle
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| 10 |
ATP molecule was discovered by: |
- A. Fritz Lipmann
- B. Calvin
- C. Karl Lohmann
- D. Hans krebs
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