| 1 |
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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| 2 |
The word photosynthesis is a combination of two ............. words. |
- A. Greek
- B. Latin
- C. German
- D. Freech
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| 3 |
The water from the soil enters into the root hairs by the process of |
- A. Photosynthesis
- B. Osmosis
- C. Diffusion
- D. Respiration
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| 4 |
..................... Organisms cannot carry out photosynthesis. |
- A. Autotrophic
- B. Heterotrophic
- C. Both
- D. None
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| 5 |
The clusters of photosynthetic pigments are called: |
- A. Thylakoids
- B. Photosystems
- C. Carotenoids
- D. Chlorophyll a & b
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| 6 |
Fermenting powers of bacteria are used in making: |
- A. Soya sauce
- B. Bread
- C. Cheese
- D. Cheese and yogurt
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| 7 |
The light reactions of photosynthesis take place on the _____________ of chloroplasts. |
- A. Stroma
- B. Thylakoid membrane
- C. Lumen
- D. Sacs
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| 8 |
In which of the following steps of respiration, CO2 is produced? |
- A. Glycolysis
- B. Krebs cycle
- C. Electron trransport
- D. All of these
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| 9 |
At ..............°C the process of photosynthesis stops. |
- A. 20°C
- B. 30°C
- C. 25°C
- D. 45°cC
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| 10 |
______________ is an inorganic compound of carbon which have poor energy value. |
- A. Glucose
- B. ATP
- C. CO<sub>2</sub>
- D. NADPH
|