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प्रश्न
Choose the correct answer:
Wilting of plants occurs when ____________
विकल्प
phloem is blocked.
xylem is blocked.
a few old roots are removed.
both xylem and phloem are blocked.
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उत्तर
Wilting of plants occurs when xylem is blocked
APPEARS IN
संबंधित प्रश्न
The diagram of an given below demonstrates a particular process in plants. Study the same and answer the questions that follow :
(i) Name the apparatus.
(ii) Which phenomenon is demonstrated by this apparatus?
(iii) Explain the phenomenon mentioned in (ii) above.
(iv) State two limitations of using this apparatus.
(v) What is the importance of the air bubble in the experiment?
(vi) Name the structures in a plant through which the above process takes place.
Mention whether the following statement is true or false. Correct the false statement by altering the last word only.
The cell wall of the root cell is a differentially permeable membrane.
Choose the correct answer:
Absorption of water from soil takes place by __________
Choose the correct answer:
In ascent of sap water reaches upwards ____________
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.
Study the experimental setup in the figure and then answer the question that follow.
What will you observe in the setup after about half an hour? Give reasons for your answer.
The below figure shows a root hair:
(i) Label the parts 1 to 4.
(ii) What is the role of part 4?
(iii) Why is the root hair one-celled?
(iv) What will happen to the root hair if some fertilizer is added to the soil near the root hair?
Name the following:
The kind of cells that constitute the cortex of a root.
____________plants like orchids absorb water vapours from air with the help of epiphytic roots having special tissue called velamen.
Draw a neat and proportionate diagram of root hair and label mitochondria, nucleus and vacuole.
