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

$A$ student has taken a twig from a plant. She/he observes a droplet of fluid exuding from the cut surface of the twig. What is this fluid?

Which of the following statements is correct?

Aerobic respiration produces ......... energy from glucose. (in $kcal$)

Given below are two statements.
$Statement-I$: Enzyme pyruvate dehydrogenase complex brings about oxidative decarboxylation of pyruvic acid.
$Statement-II$: Enzyme pyruvate dehydrogenase is not present in cytosol of prokaryotes.
In the light of the above statements, choose the correct answer from the options given below:

Match the given below processes with their respective locations:

$A$. Kreb's cycle	$i$. Inner surface of membrane of mitochondria
$B$. Photorespiration	$ii$. Cytoplasm
$C$. Oxidative phosphorylation	$iii$. Peroxisomes
$D$. Glycolysis	$iv$. Mitochondrial matrix

Choose the correct matching sequence: