Treatment with alloxan destroys:

What is the normal percentage of sugar in human blood (in $\%$)?

State the functions of cells of islets of Langerhans.

$A$ sample of urine was diagnosed to contain a high content of glucose and ketone bodies. Based on this observation, answer the following:
$(a)$ Which endocrine gland and hormone is related to this condition?
$(b)$ Name the cells on which this hormone acts.
$(c)$ What is the condition called and how can it be rectified?

Which of the following are the symptoms of hypersecretion of insulin?
$I$. Hypoglycemia $II$. Sweating $III$. Irritability $IV$. Glycosuria
Select the correct combination:

Glycogen is converted into glucose by