Advertisements
Advertisements
Question
Define: Root hair
Solution
The cytoplasmic extension (prolongation) of the epiblema cell is called root hair.
APPEARS IN
RELATED QUESTIONS
Multiple Choice Question:
Put a tick mark (✓) against the correct alternative in the following statement:
The root-hairs are suited for absorbing water from the soil because:
Choose the correct answer:
An example of a selective permeable membrane is __________
Mention whether the following statement is true (T) or false (F) and give an explanation in support of your answer.
If the phloem of a twig is removed keeping the xylem intact, the leaves of a twig wilt.
Mention whether the following statement is true (T) or false (F) and give explanation in support of your answer.
Dry seeds when submerged in water swell up due to endosmosis.
Given below is an experimental demonstration.
(i) Which phenomenon has been demonstrated in the given figure?
(ii) What is the solute and what is solvent in the above experiment?
(iii) Define the phenomenon in Q. (i) above.
(iv) Give one example from your daily life experiences based on this principle.
Multiple Choice Question:
Water will be absorbed by the root hairs when:
A thin strip of epidermal cells of a leaf was observed in a drop of water. They all looked turgid and normal.
(a) Draw a diagram of such a cell.
(b) Draw a diagram of a cell if this strip is transferred to a strong concentrated solution of sugar. What is term used for the effect on the cells ?
Epiphytic plants like orchids absorb water vapours from air with the help of epiphytic roots having special tissue called ____________.
Identify labels x, y, z in the given figure of root showing different regions.
The unbranched root hair in plants is formed from ____________.