STD 11 - 4. Animal kingdom — BIOLOGY STD 11 Science — Question

$W_0 -W_1-r-t$

Assertion $A$ : Late wood has fewer xylary elements with narrow vessels.

Reason $R$ : Cambium is less active in winters.

In the light of the above statements, choose the correct answer from the options given below :

$(i)$ It is ten enzymatic reactions that convert a six-carbon molecule to a three carbon pyruvate and result in a net gain of $2\, ATP$ molecules.

$(ii)$ Glucose undergoes partial oxidation to form one molecule of pyruvic acid.

$(iii)$ Glucose is phosphorylated to give rise to glucose $- 6 -$ phosphate by the activity of the enzyme phosphofructokinase.

$(iv)$ The scheme of glycolysis was given by Gustav Embden, Otto Morrison, and $J$. Parnas and is often referred to as the $EMP$ pathway.

$(v)$ $ATP$ is utilized at two steps: first in the conversion of glucose into glucose $6-$ phosphate and second in the conversion of fructose $- 6-$ phosphate to fructose $1, 6-$ disphosphate