Advertisements
Advertisements
Question
Choose the correct answer:
Wilting of plants occurs when ____________
Options
phloem is blocked.
xylem is blocked.
a few old roots are removed.
both xylem and phloem are blocked.
Advertisements
Solution
Wilting of plants occurs when xylem is blocked
APPEARS IN
RELATED QUESTIONS
Which one of the following is a characteristic NOT related with the suitability of the roots for absorbing water?
The diagram given below represents a plant cell after being placed in a strong sugar solution. Guidelines 1 to 5 indicate the following:
1. Strong sugar solution
2. Cell wall
3. Protoplasm
4. Large vacuole
5. Nucleus
Study the diagram and answer the questions that follow:
(i) What is the state of the cell shown in the diagram?
(ii) Name the structure which acts as a selectively permeable membrane.
(iii) If the cell had been placed in distilled water instead of strong sugar solution which feature would not have been present?
(iv) If the cell in the diagram possessed chloroplasts where would these be present?
(v) Name any one feature of this plant cell which is not present in animal cells.
The diagram below represents a layer of epidermal cells showing a fully grown root hair. Study the diagram and answer the questions that follow:
Draw a diagram of the above root hair cell as it would appear when a concentrated solution of fertilizers is added near it.
Outer layer of root hair is made up of ________.
Inner layer of root hair is made up of ______.
Define: Root hair
Minerals cannot be passively absorbed by the roots.
Epiphytic plants like orchids absorb water vapours from air with the help of epiphytic roots having special tissue called ____________.
Which part of the root helps in maximum absorption of water and minerals?
