Biology 11 Chapter - 10 Form and Function in Plants -11

Biology 11 Chapter - 10
Form and Function in Plants -11

1. Which one of the following is not an adaptation of plants to low temperature?

a) No cuticle
b) Scale leaves
c) Needle like leaves
d) Thick cuticle

2. Wilting in plants is a response to?

a) A. High temperature
b) B. Low temperature
c) C. Moderate temperature
d) D. Both b and c

3. Heat shock proteins in plants are used to?

a) Protect enzymes
b) Denature enzymes
c) Stop transpiration
d) Enhance transpiration

4. The pressure which is caused by the water in the vacules on the walls of a plant cell is known as?

a) Turgor pressure
b) Osmotic pressure
c) Blood pressure
d) Root pressure

5. In herabceous plants, the turgidity helps in?

a) Support
b) Thermoregulation
c) Homeostasis
d) Respiration

6. Collenchyma and scelerenchyma in plants are?

a) Supporting tissues
b) Conducting tissues
c) Respiratory tissues
d) Photosynthetic tissues

7. Which one of the following is not true about collenchyma?

a) It is non living
b) It is mechanical tissue
c) It is living
d) It provides support

8. Which one of the following is not true about sclerenchyma?

a) It is living
b) It is dead
c) It is lignified
d) It provides support

9. Which one of the following statements is a correct one?

a) A. Fibres are elongated
b) B. Fibres are spherical
c) C. Sclereids are elongated
d) D. Both b and c

10. Fibres and sclereids are the types of?a) Sclerenchyma
b) Collenchyma
c) Parenchyma
d) None of these

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