When the pancreas detects a high concentration of the blood's sugar, glucose, it releases:

a. insulin.

b. antibodies.

c. adrenaline.

d. lymph.

e. glucagon?

A. Insulin

The pancreas mainly the beta cells (one of the islets of langerhans) secretes insulin.

Insulin enhances glucose metabolism, promotes synthesis of proteins from amino acids in the tissues and promotes synthesis of fatty acids from glucose in the adipose tissues