Question

The relative concentrations of all the hormones within an organism is highly regulated. A scientist studying this phenomenon observed that ¹⁴C-labeled insulin showed a 50% decrease within 25min after injection into a rat.

Answer 1

all the hormones are highly regualted

as insulin and glucagon are regulated by blood glucose levels of the organism

insulin-released by beta cells of pancreas in response to high blood glucose levels(after meals) when blood glucose is normal it is degraded by the insulinase

degradation usually occurs in liver and kidneys

as scientist saw that insulin was 50% cleared within 25 min it must be in response to blood glucose levels

when the blood glucose level drop the insulin is degraded and cleared from the blood