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Ascent of sap is best explained by...

Ascent of sap is best explained by

A

mass (bulk) flow

B

pulsation theory

C

root pressure

D

cohesion-tension transpiration pull.

Text Solution

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The correct Answer is:
D
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Assertion: root pressure is largely responsible for ascent of sap in herbaceous plants Reason:root pressure is caused due to diffusion pressure gradient and is maintained by the activity of living cells

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Knowledge Check

  • According to one vital force theory, ascent of sap is due to acitve pulsation of innermost layer of cortex. This theory was give by In plant 'transpiration pull' theory for ascent of sap was first proposed by

    A
    J. C. Bose
    B
    Dixon
    C
    Strasburger
    D
    Sacks

  • In plant 'transpiration pull theory for ascent of sap was first proposed by:

    A
    Dixon
    B
    Dixon and Jolly
    C
    J. C. Bose
    D
    Strasburger

  • Ascent of sap in plant takes place through पौधों में रस का आरोहण (चढ़ाव) किसके माध्यम से होता है?

    A
    Pith / मज्जा
    B
    Phloem / पोषवाह (फ्लोएम)
    C
    Cambium / एधा (कैम्बियम),
    D
    Xylem / जाइलेम

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    Ascent of sap in plants was demonstrated by

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