Two fresh potato cylinders of equal length were placed one in distilled water and the other in concentrated sucrose solution: (a) Account for the change in...

      

Two fresh potato cylinders of equal length were placed one in distilled water and the other in concentrated sucrose solution:
(a) Account for the change in length of the cylinder in:

(i) Distilled water
(ii) Sucrose solution

(b)
(i) What would be the result in terms of length if a boiled potato was used?
(ii) Explain your answer in(b)(i) Above

(c) State two uses of the physiological process being demonstrated in the experiment

  

Answers


Martin
(a) (i) Increased in length, absorbed water through osmosis, ( since cylinder cells were hypertonic/ at higher concentration) and become turgid.

(ii) Reduced in length, cylinder host water to the hypertonic sucrose solution/become flaccid.

(b) (i) No change in length

(ii) Cells are dead and cannot carry out osmosis.

(c)
- opening and closing of stomata
- Support in plants
- Movement of water from cell to cell
- Feeding in insectivorous plants
- Absorption of water by root hairs
- Absorption of water in the intestines
- Reabsorption of water in kidney nephron
marto answered the question on October 3, 2019 at 10:45


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