1. Some plants store waste in their fruits in the form of solid bodies called:
A. Raphides
B. Lenticels
C. Stomata
D. Resins
2. Various methods used by plants to get rid of their waste products are:
I. Gaseous waste through stomata and lenticels.
II. Stored solid and liquid waste by shedding leaves, peeling of bark and falling of fruits.
III. By secreting waste in the form of gum and resins.
Which of the following statements is/are correct?
A. I and II are correct.
B. II and III are correct.
C. I and III are correct.
D. I, II and III are correct.
3. Name the waste products secreted by Plants?
A. Carbon Dioxide
B. Oxygen
C. Water Vapour
D. All are correct.
4. Which of the following statements is/are correct?
I. The net gaseous exchange in leaves at night is, oxygen diffuses in and carbon dioxide diffuses out.
II. Net gaseous exchange during day time is, oxygen diffuses out and carbon dioxide diffuses in.
Select the correct answer from the codes given below:
A. Only I is correct.
B. Only II is correct
C. Both I and II are correct.
D. Neither I nor II is correct.
5. Name an extension of the epidermal cells of a root which is in direct contact with the soil?
A. Root Hairs
B. Internodes
C. Bundle Scars
D. Pith
A. Raphides
B. Lenticels
C. Stomata
D. Resins
2. Various methods used by plants to get rid of their waste products are:
I. Gaseous waste through stomata and lenticels.
II. Stored solid and liquid waste by shedding leaves, peeling of bark and falling of fruits.
III. By secreting waste in the form of gum and resins.
Which of the following statements is/are correct?
A. I and II are correct.
B. II and III are correct.
C. I and III are correct.
D. I, II and III are correct.
3. Name the waste products secreted by Plants?
A. Carbon Dioxide
B. Oxygen
C. Water Vapour
D. All are correct.
4. Which of the following statements is/are correct?
I. The net gaseous exchange in leaves at night is, oxygen diffuses in and carbon dioxide diffuses out.
II. Net gaseous exchange during day time is, oxygen diffuses out and carbon dioxide diffuses in.
Select the correct answer from the codes given below:
A. Only I is correct.
B. Only II is correct
C. Both I and II are correct.
D. Neither I nor II is correct.
5. Name an extension of the epidermal cells of a root which is in direct contact with the soil?
A. Root Hairs
B. Internodes
C. Bundle Scars
D. Pith
ANSWERS:
1. Ans. A
2. Ans. D
3. Ans. D
4. Ans. C
5. Ans. A
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