| 1 |
Which of the following is not true of the guard cells |
- A. They are present in the epidermis of leaf
- B. They are connected by plasmodesmata with other epidermal cells
- C. They contain chloroplasts
- D. They are kidney shape
|
| 2 |
Thalassemia is also called. |
- A. Cooley's anaemia
- B. Peter's anaemia
- C. Thomas anaemia
- D. Mendl'e anaemia
|
| 3 |
The loss of liquid water through hydathodes in plants is called |
- A. Imbibition
- B. Transpiration
- C. Bleeding
- D. Guttation
|
| 4 |
In normal human body percentage of plasma in blood volume is. |
- A. 45%
- B. 30%
- C. 55%
- D. 60%
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| 5 |
The phenomenon associated with root pressure is |
- A. Imbibition
- B. Guttation
- C. Cohesion
- D. Tension
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| 6 |
Cuticular transpiration takes places at. |
- A. Morning
- B. Noon
- C. Evening
- D. Night
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| 7 |
In______ leaves the stomata are confined to only the lower epidermis |
- A. Isobilateral
- B. Dorsiventral
- C. Both a and b
- D. None of these
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| 8 |
One complete heart beat tasts for |
- A. 0.2 seconds
- B. 2 seconds
- C. 0.8 seconds
- D. 0.15 seconds
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| 9 |
Cardiac muscles can be distinguished from other muscle fibers because cardiac muscles |
- A. Contain only actin
- B. Voluntary in action
- C. Lacks regular arrangement of sarcomeres
- D. Have intercalated disc
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| 10 |
The process that most likely/directly enables a root cell to absorb minerals by active transport and enable a muscle cell to contract is |
- A. Circulation
- B. Excretion
- C. Respiration
- D. Assimilation
|