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#### Living World of Plants - Plant Physiology Two Marks Questions

9th Standard

Reg.No. :
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Science

Time : 00:45:00 Hrs
Total Marks : 20
10 x 2 = 20
1. Give an example for a plant whose leaf shows a mesmerizing movement.

2. Write the scientific terms used to represent the following:
a) Growing of roots towards the gravity.
b) Bending of roots towards the water.

3. Give the technical terms for the following:
a) Growth dependent movement in plants.
b) Growth independent movement in plants.

4. Study the pictures below and then complete the table by putting a plus (+) if the shoot or root grows towards the stimulus and a minus (-) if it grows away from it.

Stimulus Light Gravity
Shoot + -
Root ? +

5. Name the movement seen in Pneumatophores of Avicennia

6. Give an example for negative hydrotropism.

7. Fill in the blanks:
6CO2+________$\overset { Sunlight }{ \underset { Chlorophyll }{ \longrightarrow } }$ _____ +6H2O+6O2 $\uparrow$

8. Which gas is evolved during photosynthesis?

9. Give an example for micronutrients.

10. Complete the following table with the different types of tropism:

Stimulus Gravity Unilateral light Water
Tropism Geotropism ? Hydrotropism
Response Shoot    ? Positive No response
Root Positive   ? ?