(C) potometer is an apparatus used to measure the rate of water uptake by a cut shoot. It is based on the principle that the rate of water absorption

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Absorption is proportional to transpiration

(C) potometer is an apparatus used to measure the rate of water uptake by a cut shoot. It is based on the principle that the rate of water absorption by a plant is approximately equal to the rate of transpiration. As the plant loses water through transpiration,it absorbs an equivalent amount of water from the potometer,which can be measured by the movement of an air bubble in the capillary tube.

Class 11 Biology Transport in Plants Scientists and Apparatus concerned

Medium

The principle of working of all potometers is

A
Absorption occurs by stem
B
Absorption is a physical process
C
Absorption is proportional to transpiration
D
Transpiration depends on light

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Transport in Plants

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Scientists and Apparatus concerned

Which one of the following theories for ascent of sap was proposed by an eminent Indian scientist $J$.$C$. Bose?

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Which of the following instruments is used to measure the rate of transpiration in plants?

EasyAIPMT 1994

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Match the theories given in column-$I$ with the names of scientists listed in column-$II$. Choose the answer which gives the correct combination of the alphabets.

Column-$I$ (Names of theories) Column-$II$ (Names of scientists)

$(A)$ Relay pump theory $(p)$ Stocking

$(B)$ Transpiration cohesion theory $(q)$ Sir $J$.$C$. Bose

$(C)$ Mass flow $(r)$ Godlewski

$(D)$ Pulsation theory $(s)$ Dixon and Joly

$(t)$ Ernst Munch

Column-$I$ (Names of theories)	Column-$II$ (Names of scientists)
$(A)$ Relay pump theory	$(p)$ Stocking
$(B)$ Transpiration cohesion theory	$(q)$ Sir $J$.$C$. Bose
$(C)$ Mass flow	$(r)$ Godlewski
$(D)$ Pulsation theory	$(s)$ Dixon and Joly
	$(t)$ Ernst Munch