Raisins when submerged in water swell up due to _____.
Important Questions on Absorption by Roots
Correct the following statements by changing the underlined words:
Xylem transports starch from the leaves to all parts of the plant body.
Differentiate between the following pairs on the basis of what is indicated in the brackets.
Hypotonic solution and Hypertonic solution [condition of a plant cell when placed in them].
Assertion (): Pea seeds swell more on imbibition than wheat seeds.
Reason (): Proteins have a high imbibing capacity.
Solution A: Pure water,
Solution B: saturated salt solution,
Solution C: Hydrochloric acid
The sequence of treatments and the ensuring probable effect on the egg are listed below:
I. A - B - C -Remains unchanged
II. B - C - A - Swells
III. C - A - B - Shrinks
IV. B - A - C - Loses salts
Based on the above sequence to treatment which one of the options will be correct?
Differentiate between the following pairs on the basis of what is mentioned in the brackets:
Osmosis and Active Transport (Substances undergoing movement)
Correct the following statements by changing the underlined words:
The cell sap of root hair is Hypotonic.
Give biological explanations for the following:
Plants growing in fertilized soil are often found to wilt if the soil is not adequately watered
Take four peeled potato halves and scoop each one out to make potato cups. One of these potato cups should be made from a boiled potato. Put each potato cup in a trough containing water. Now,
(a) Keep cup A empty
(b) Put one teaspoon sugar in cup B
(c) Put one teaspoon salt in cup C
(d) Put one teaspoon sugar in the boiled potato cup D.
Keep these for two hours. Then observe the four potato cups and answer the following:
(i) Explain why water gathers in the hollowed portion of B and C.
(ii) Why is potato A necessary for this experiment?
(iii) Explain why water does not gather in the hollowed-out portions of A and D.
