MCQs on Transport in Plants

MCQs on Transport in Plants

1. The rate of transpiration will _________ if the atmospheric pressure is low
a. Increase
b. Decrease
c. Stay unchanged
d. Can’t be determined

2. The main function of guard cells is to help with ____________
a. Transpiration
b. Guttation
c. Transcription
d. None of the above

3. Transpiration is regulated by the movements of __________
a. Parenchyma cells
b. Guard cells
c. Epithelial cells
d. None of the above

4. The steroid hormones easily pass through the plasma membrane through simple diffusion because they are _____
a. Gaseous
b. Carbon-based
c. Water Soluble
d. Lipid Soluble

5. Living cells placed in an isotonic solution tend to retain their shape and size. This is based on the principle of
a. Diffusion
b. Transpiration
c. Osmosis
d. None of the above

6. Girdling around the trunk of a tree can cause it to ________ if it cannot regrow to bridge the wound
a. Stop absorbing water
b. Stop growing
c. Die
d. None of the above

7. Transport of food materials in higher plants occurs through
a. Flowers
b. Companion cells
c. Tracheids
d. Sieve elements

8. Nearly 90% of the flowering plants have __________
a. Spores
b. Mycorrhizae
c. Naked seeds
d. None of the above

9. The movement of materials from the leaves to other tissues of the plant is called _________
a. Tropic movement
b. Guttation
c. Transpiration
d. Translocation

10. The exudation of xylem sap drops on the edges of leaves is called
a. Transpiration
b. Guttation
c. Condensation
d. None of the above

Answer Keys for Transport In Plants MCQ
Question Number Answer Key
1 a
2 a
3 b
4 d
5 c
6 c
7 d
8 b
9 d
10 b

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