Chapter 13 - Coordination and Response : Hormones

Glucagon

increases blood glucose concentration by stimulating liver cells to convert glycogen to glucose.

Adrenaline

a hormone produced by the adrenal glands located above the kidneys.

cellular metabolism

They affect ________ and coordinate the growth, development and activity of an organism.

Insulin

Hormone that decreases blood glucose concentration by converting glucose to glycogen.

liver

Hormones are active in minute quantities and are destroyed by the ___________ and excreted by the kidneys.

physical threats

It is responsible for the ‘ fight- or- flight response triggered by stress (emotional or ________ to the organism)

diabetes mellitus

a condition in which the body does not produce sufficient insulin or does not respond to insulin.

response

In ________ to stress, the adrenal medulla secretes adrenaline into the blood.

Diabetic individuals

________ can control their disease by receiving regular injections and controlling their carbohydrate intake.

islets of Langerhans

are areas in the pancreas that contain groups of endocrine cells, which release insulin.

Diabetes

________ can cause: (a) Poor immune response- increased susceptibility to infections (b) Damaged blood vessels leading to vision loss and a decreased sensation in the limbs (c) Kidney failure and heart failure.

negative feedback

feedback in opposite phase with the input