An apparatus commonly used to demonstrate pho | vedclass

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(A) Phototropism is the growth of an organism in response to a light stimulus. $(a)$ $A$ $Heliotropic$ chamber is a specialized apparatus designed to

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Heliotropic chamber

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(A) Phototropism is the growth of an organism in response to a light stimulus. $(a)$ $A$ $Heliotropic$ chamber is a specialized apparatus designed to demonstrate the phenomenon of phototropism in plants. $(b)$ $A$ $Clinostat$ is used to demonstrate geotropism by eliminating the effect of gravity through slow rotation. $(c)$ An $Arc$ $Auxanometer$ is used to measure the rate of growth in plants. $(d)$ $A$ $Potometer$ is used to measure the rate of transpiration in a leafy shoot. Therefore,the correct apparatus for demonstrating phototropism is the $Heliotropic$ chamber.

Column $I$ (Hormone)	Column $II$ (Effect/Function)
$(a)$ Auxins	$(i)$ Produces male flowers on female plant
$(b)$ Gibberellins	$(ii)$ Parthenocarpy in orange,lemon and grapes
$(c)$ Cytokinin	$(iii)$ Antitranspirant and stress tolerance in plants
$(d)$ Abscisic acid	$(iv)$ Reverses apical dominance in plants

An apparatus commonly used to demonstrate phototropism is

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