The major driving force for transport of water through xylem in plants- during the day- is - i - and during the night- is ii-A- i diffusion- ii osmosisB- i root pressure-ii transpirationC- i transpiration- ii root pressureD- i active transport- ii transpiration

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Standard IX

Biology

Transportation in Plants

The major dri...

Question

The major driving force for transport of water through xylem in plants, during the day, is (i) and during the night, is (ii).

(i) root pressure, (ii) transpiration

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(i) transpiration, (ii) root pressure

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(i) diffusion, (ii) osmosis

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(i) active transport, (ii) transpiration

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Solution

The correct option is B
(i) transpiration, (ii) root pressure

The major driving force for transport of water through xylem in plants during the day is transpiration which creates transpiration pull and during the night is root pressure due to the absence of transpiration.

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Similar questions

Match structures given in Column I with functions given in Column II.

	Column I		Column II
(i)	Stomata	(a)	Absorption of water
(ii)	Xylem	(b)	Transpiration
(iii)	Root hairs	(c)	Transport of food
(iv)	Phloem	(d)	Transport of water
		(e)	Synthesis of carbohydrates

Q. Go through the four statements given beIow:
I. Root pressure provides a light push in the overall process of water transport.
II. Most plants meet their water need by transpiration pull.
III. The greatest contribution of root pressure may be to re-establish the continuous chains of water molecule in the xylem vessel which often break under enormous tension created by transpiration.
IV. Guttation is the cause of transpiration pull.

The correct statements are

Q. Question 1
Match structures given in Column I with functions given in Column II

\begin{matrix} C o l u m n I & C o l u m n I I (i) S t o m a t a & (a) A b s o r p t i o n (i i) X y l e m & (b) T r a n s p i r a t i o n (i i i) R o o t h a i r s & (c) T r a n s p o r t o f f o o d (i v) L e a v e s & (d) T r a n s p o r t o f w a t e r (e) S y n t h e s i s o f c a r b o h y d r a t e s \end{matrix}

Q. Question 3 (a)
Choose the correct option:
(a) In plants, water is transported through
(i) xylem
(ii) phloem
(iii) stomata
(iv) root hair

Small amounts of monosaccharides like glucose, amino acids and some of electrolytes like chloride ions are absorbed by (i). However, some of the substances like fructose and some amino acids are absorbed by the mechanism called (ii). Various nutrients like amino acids and electrolytes like Na+ are absorbed into the blood by (iii).

a) i) facilitated transport ii) active transport iii) simple diffusion

b) i) simple diffusion ii) facilitated transport iii) active transport

c) i) active transport ii) facilitated transport iii) simple diffusion

d) i) simple diffusion ii) active transport iii) facilitated transport

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The major driving force for transport of water through xylem in plants, during the day, is __(i)__ and during the night, is __(ii)__.

The correct option is B (i) transpiration, (ii) root pressure The major driving force for transport of water through xylem in plants during the day is transpiration which creates transpiration pull and during the night is root pressure due to the absence of transpiration.

The major driving force for transport of water through xylem in plants, during the day, is (i) and during the night, is (ii).

The correct option is B
(i) transpiration, (ii) root pressure

The major driving force for transport of water through xylem in plants during the day is transpiration which creates transpiration pull and during the night is root pressure due to the absence of transpiration.