(D) Microfibrils in the guard cells are composed of cellulose. These cellulose microfibrils are arranged in a radial orientation rather than a longitu

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(D) Microfibrils in the guard cells are composed of cellulose. These cellulose microfibrils are arranged in a radial orientation rather than a longitudinal one. This specific radial arrangement allows the guard cells to expand more easily in length and width,which pulls the inner walls apart and facilitates the opening of the stomatal pore during turgidity.

Class 11 Biology Respiration in Plants Mix Examples- Respiration in Plants

Medium

Select the correct statement regarding microfibrils.

A
They are present in guard cells.
B
They are made of cellulose.
C
They are arranged in a radial orientation,which facilitates the opening of the stomatal pore.
D
All of the above.

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Respiration in Plants

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Mix Examples- Respiration in Plants

Meaningful girdling (Ringing) experiments cannot be done on sugarcane because

MediumAIPMT 1994

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Match the following and choose the correct option from those given below.

Column $A$ Column $B$

$A$. Molecular oxygen $(i)$. $\alpha$-Ketoglutaric acid

$B$. Electron acceptor $(ii)$. Hydrogen acceptor

$C$. Pyruvate dehydrogenase $(iii)$. Cytochrome $c$

$D$. Decarboxylation $(iv)$. Acetyl $CoA$

Column $A$	Column $B$
$A$. Molecular oxygen	$(i)$. $\alpha$-Ketoglutaric acid
$B$. Electron acceptor	$(ii)$. Hydrogen acceptor
$C$. Pyruvate dehydrogenase	$(iii)$. Cytochrome $c$
$D$. Decarboxylation	$(iv)$. Acetyl $CoA$