During the depression of freezing point in a solution,which of the following are in equilibrium?

The chief water conducting elements of xylem in gymnosperms are

$11^2 + 12^2 + 13^2 + \dots + 20^2 = ?$

In an unbiased $p-n$ junction,holes diffuse from the $p-$region to $n-$region because

Which of the following statements are correct?
$(i)$ In prokaryotic cells,a special membranous structure formed by the extension of the plasma membrane into the cell is known as polysome.
$(ii)$ The smooth endoplasmic reticulum is the major site for synthesis of glycoproteins.
$(iii)$ $RuBisCO$ is the most abundant protein in the whole biosphere.
$(iv)$ Mitochondria,chloroplasts and peroxisomes are not considered as part of endomembrane system.
Of the above statements:

$\sqrt[4]{17 + 12\sqrt{2}} = $