Advertisements
Advertisements
Question
Advertisements
Solution
The root hairs become flaccid when fertilisers are added to the moist soil around them because fertilisers with moist soil become hypertonic which causes plasmolysis in the cells of the root hair. The turgidity is lost and the cell becomes flaccid.
APPEARS IN
RELATED QUESTIONS
Three plants (a), (b) and (c) were placed in beakers containing coloured water. The water in each beaker was covered with a layer of oil. The leaves were removed from plant (b), while plant (c) was exposed to strong light.
(i) In which plant, (a), (b) or (c) would the water move up the fastest?
(ii) In which plant (a), (b) or (c), would the water move up slowly?
(iii) Why was the water covered with a layer of oil?
(iv) What is being investigated by this experiment?

Choose the correct answer:
Wilting of plants occurs when ____________
Draw a cross-section of root showing association of soil particles with root hairs.
The diagram given below represents the result of an experiment conducted on two freshly taken shoots of a green herbaceous plant. The lower ends dip in the water.

(i) What is the aim of the experiment?
(ii) Some parts of the stem in both the shoots have been removed. Name the conducting tissue in shoot A and in shoot B, that has been removed.
(iii) What are the results of this experiment?
Multiple Choice Question:
Process of endosmosis stops:
What is the composition of inner layer of root hair?
Identify labels x, y, z in the given figure of root showing different regions.

____________ regions are present in a typical root.
