Biology
Fill in the blanks with suitable terms given below: (fast, leaves, conducting, ascent, humid)
(i) Transportation in plants is carried out by a …………… system.
(ii) The upward movement of sap that contains water and minerals is called …………… of the sap.
(iii) Transpiration is more when the wind is blowing ……………
(iv) Most water gets evaporated from the plant from its ……………
(v) Transpiration is reduced if the air is ……………
Transport in Plants
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Answer
(i) Transportation in plants is carried out by a conducting system.
(ii) The upward movement of sap that contains water and minerals is called ascent of the sap.
(iii) Transpiration is more when the wind is blowing fast.
(iv) Most water gets evaporated from the plant from its leaves.
(v) Transpiration is reduced if the air is humid.
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Related Questions
Transpiration is defined as:
- the rise of water up to the stem of a plant.
- the elimination of water with dissolved water products.
- the loss of water as water vapour from the aerial parts of a plant.
- the loss of water as water vapour from the roots as well as the leaves of the plant.
Which one of the following favours the fastest transpiration rate?
- A cool, humid, windy day,
- A hot, humid, windy day,
- A hot, humid, still day,
- A hot, dry, windy day.
Match the terms given in Column A with those given in Column B
Column A Column B (a) Phloem parenchyma (i) Cylindrical cells devoid of a nucleaus (b) Tracheids (ii) Tubular cells forming long channels (c) Xylem vessels (iii) Cells attached to sieve tubes (d) Sieve tubes (iv) Elongated dead cells (e) Companion cells (v) Cells storing food State whether the following statements are True or False. Rewrite the false statements correctly.
(a) Water absorption mainly occurs through the root-hair.
(b) Water enters the root-hair by osmosis.
(c) Water absorbed by the roots reaches the leaves and is used in producing food for the entire plant.
(d) A semi-permeable membrane allows larger molecules to pass through but prevents the smaller ones.
(e) Transpiration is the loss of water from the roots of the plant.
(f) Transpiration cools the plant when it is hot outside.