Question 3 Why does salinity affect plant growth? O salinity removes the ions in

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Question 3 Why does salinity affect plant growth? O salinity removes the ions in the soil that the plant could uptake O Salinity will change the osmotic balance of the plant in relation to the soil O Salinity will displace any air in the soil so the root cells cannot respire O Salinity will change the pH of the soil, making it harder to intake K+ | Question 4 Which of the following EXPLAINS why transpiration aids water move upwards? Water moves by osmosis from hypotonic areas, with low solute concentration into hypertonic areas Water molecules stick to each other each molecule that evaporates pulls the next one Water molecules have adhesion to the walls of tracheids and xylem vessels allowing them to form tall columns of water Plant cell membranes have channels called aquaporins that allow water to move through the membrane fast

Explanation / Answer

3. Correct answer:- (b) Salinity will change the osmotic balance of the plant in relation to the soil.
4. Correct answer:- (c) water molecules have adhesion to the wallof xylem to form long column of water.
5. Correct answer:- (c) Turgor pressure
(d) changes in tonicity

6. Correct answer:-
-sugars move into sieve tubes by active transport
-water mover from xylem into sieve tubes
-solution in sieve tubes become hypertonic.

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