CBSE Class 11 Biology Transport in Plants Quiz 1

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CBSE › Class 11 › Biology › Transport in Plants

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1. Dry seeds kept in water swell due to

A absorption B diffusion C imbibition D none of these

2. Which of the following is the unit of ψ?

A Pascal B Joule C Newton D Electron volt

3. Which of the following is decreased during increase in humidity in the atmosphere?

A Transpiration B Photosynthesis C Respiration D Glycolysis

4. Two types of molecules cross the membrane in the same direction, it is called as

A Uniport B Symport C Antiport D Multiport

5. Diffusion rate is affected by

A temperature B membrane permeability C gradient of concentration D all of these

6. Cells shrink in _________ solution.

A isotonic B hypotonic C hypertonic D hypotonic and hypertonic

7. Which of the following is true about diffusion?

A There is no expenditure of energy. B Molecules move in Brownian motion. C Substances moves from the region of higher concentration to the region of lower concentration. D Diffusion depends on the type of living system.

8. Which of the following is true about diffusion?

9. Water is lost in a liquid state in some plants through hydathodes. These hydathodes

A do not show any specificity in opening and closing B remain closed during day C remain closed at night D remain always open

10. If pressure greater than atmospheric pressure is applied to pure water, the water potential

A increases B decreases C remains same D atmospheric pressure does not affect water potential

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