Energy liberated during the germination of seed can be detected in the form of

Given below are two statements:
Statement-$I$: Acetyl $CoA$ formation takes place by oxidative decarboxylation of pyruvic acid.
Statement-$II$: $\beta$-oxidation of fatty acid produces acetyl $CoA$.
In the light of above statements,choose the most appropriate answer from the options given below.

Choose the correct option:
$(1)$ Sucrose is converted into glucose and fructose with the help of the enzyme $Invertase$ / $Maltase$.
$(2)$ In fermentation,glucose is converted into ethanol by yeast under $Aerobic$ / $Anaerobic$ conditions.

Which of the following statements regarding hydathodes is correct?

The term 'floating respiration' is used when the respiratory substrate is .........

$A$ 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?