MCQ
Abscisic acid $(ABA)$ is a stress related hormone and it also
- AAids in fruit development
- BAccelerates fruit ripening
- CStimulates mitosis
- ✓Mediated stomatal closure
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$R$ : Immobilised nutrients cannot be available for solubilisation after the death of saprotrophs.
$(i)$ The complete combustion of glucose, which produces $O_2$ and $H_2O$ as end products, yields energy most of which is given out as heat.
$(ii)$ The scheme of glycolysis was given by Gustav Embden, Otto Meyerhof and J. Parnas and is often referred to as the $EMP$ pathway.
$(iii)$ In glycolysis, $ATP$ is utilised at $4$ steps.
$(iv)$ In both lactic acid and alcohol fermentation not much energy is released; more than seven percent of the energy in glucose is released and not all of it is trapped as high energy bonds of $ATP.$
$(v)$ For aerobic respiration to take place within the mitochondria, the final product of glycolysis pyruvate is transported from the cytoplasm into the mitochondria.
$A$. Lenticels are the lens-shaped openings permitting the exchange of gases.
$B$. Bark formed early in the season is called hard bark.
$C$. Bark is a technical term that refers to all tissues exterior to vascular cambium.
$D$. Bark refers to periderm and secondary phloem.
$E$. Phellogen is single-layered in thickness.
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