Our expert team has curated questions covering all important topics of Plant Water Relation MCQ with Answers. Solving these not only sharpens your understanding but also boosts your confidence, addressing any preparation jitters you might have. Gear up for success with our comprehensive MCQ on Plant Water Relations.
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MCQ on Plant Water Relation with Answers:
1. What is the relation between plant and water?
a) Symbiotic
b) Competitive
c) Essential
d) Repellent
Answer: c) Essential
2. What factors affect plant water relations?
a) Light intensity
b) Temperature
c) Soil type
d) All of the above
Answer: d) All of the above
3. What is the water potential of pure water?
a) 0
b) 1
c) -1
d) -100
Answer: a) 0
4. How do plants absorb water?
a) Active transport
b) Osmosis
c) Diffusion
d) Imbibition
Answer: b) Osmosis
5. The unit of water potential is_________
a) Pascal (Pa)
b) Joule (J)
c) Megapascal (MPa)
d) Kilogram (kg)
Answer: a) Pascal (Pa)
6. The entry and exit of any substance within the cell depend on________.
a) Turgor pressure
b) Water potential
c) Osmotic pressure
d) Hydrostatic pressure
Answer: b) Water potential
7. Diffusion of water from one cell to another cell in plants is maintained by ________.
a) Active transport
b) Facilitated diffusion
c) Osmosis
d) Plasmolysis
Answer: c) Osmosis
8. Which of the following factors affect the process of diffusion?
a) Temperature
b) Pressure
c) Concentration gradient
d) All of the above
Answer: d) All of the above
9. The exchange of CO2 and O2 from the atmosphere by leaves is called ________
a) Transpiration
b) Respiration
c) Photosynthesis
d) Diffusion
Answer: d) Diffusion
10. Which of the following is an example of Imbibition?
a) Swelling of seeds
b) Root pressure
c) Transpiration pull
d) Capillarity
Answer: a) Swelling of seeds
11. Which of the following statements are true about osmotic pressure?
a) It depends on the solute concentration
b) It is the pressure required to stop osmosis
c) It is a colligative property
d) All of the above
Answer: d) All of the above
12. Which of the following statements are true about osmosis?
a) It is the movement of solvent molecules from a region of higher concentration to a region of lower concentration
b) It is a passive process
c) It helps in maintaining cell turgidity
d) All of the above
Answer: d) All of the above
13. Which of the following statements are true about diffusion?
a) It occurs from a region of higher concentration to a region of lower concentration
b) It is a passive process
c) It does not require energy input
d) All of the above
Answer: d) All of the above
14. Which of the following statements are true about Imbibition?
a) It is the absorption of water by solids
b) It causes swelling of seeds
c) It is a physical process
d) All of the above
Answer: d) All of the above
15. Which of the following statements are true about Endosmosis?
a) It is the movement of solvent molecules from outside to inside of a cell
b) It is a type of osmosis
c) It increases cell volume
d) All of the above
Answer: d) All of the above