| 1 |
The loss of water in the form of drops from tips of leaf is called. |
- A. Evaporation
- B. Excertion
- C. Guttation
- D. Transpiration
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| 2 |
Which of the following elements are micronutrients for plants. |
- A. Carbon
- B. Zinc
- C. Nitrogen
- D. Phosphorus
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| 3 |
Which ion plays a role in the opening of stomata. |
- A. Sodium
- B. Potassium
- C. Calcium
- D. Magnesium
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| 4 |
All of the following are the adaptation of exrophytes except. |
- A. Thick cuticle
- B. Sunken stomata
- C. Deep root system
- D. Large number of stomata
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| 5 |
Which of the following plant nutrints is requried in large amount. |
- A. Iron
- B. Potassium
- C. Zinc
- D. Boron
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| 6 |
The plants, which live completely or partially submerged in fresh water are. |
- A. Hydrophyte
- B. Halophytes
- C. Xerophytes
- D. Mesophytes
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| 7 |
What are not the unctions of leaves in plants. |
- A. Photosynthesis
- B. Waste storage
- C. Water storage
- D. Gas exchange
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| 8 |
What roles does maganesium play in plants. |
- A. Aids in water transport
- B. Is a component of chlorophyII
- C. Promotes early root formation
- D. Involved in enzyme functions
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| 9 |
Which of the following are not types of transpiration. |
- A. Root
- B. Stomatal
- C. Cuticular
- D. Lenticular
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| 10 |
Which of the following is not function of roots in plants. |
- A. photosynthesis
- B. Absorption of water
- C. Anchor the plant
- D. Nutrient absorption
|