BIOLOGY-Plant Water Relations Questions and Answers
Practice ModeShowing 10 of 50 questions
Q31
What is the term for plants growing in water?
Answer: Option A
Explanation: Hydrophytes are aquatic plants with adaptations for living in water-saturated environments.
Q32
Which process requires energy for water movement?
Answer: Option A
Explanation: Active transport uses ATP to move substances against concentration gradients.
Q33
What is the main force for water movement in the apoplast?
Answer: Option A
Explanation: Water moves through apoplast primarily by mass flow driven by transpiration pull.
Q34
Which tissue transports organic nutrients in plants?
Answer: Option A
Explanation: Phloem is responsible for transporting sugars and other organic compounds throughout the plant.
Q35
What is the term for the diffusion of water vapor?
Answer: Option A
Explanation: Transpiration involves water vapor diffusion through stomata into the atmosphere.
Q36
Which factor increases root pressure?
Answer: Option A
Explanation: High soil moisture availability promotes root pressure by facilitating water uptake.
Q37
What is the term for water movement through cell membranes?
Answer: Option A
Explanation: Osmosis specifically refers to water diffusion across selectively permeable membranes.
Q38
Which plant part is most involved in water absorption?
Answer: Option A
Explanation: Root hairs on young root regions are specialized for maximum water uptake from soil.
Q39
What is the term for the pressure exerted by cell contents against cell wall?
Answer: Option A
Explanation: Turgor pressure develops when water enters plant cells and presses cytoplasm against rigid cell walls.
Q40
Which process reverses plasmolysis?
Answer: Option A
Explanation: Deplasmolysis occurs when plasmolyzed cells are placed in hypotonic solution and regain water.