B11 Hormonal coordination

ADH

antidiuretic hormone helps control the water balance of the body and affects the amount of urine produced by the kidney

Adrenaline

hormone that prepares the body for flight or fight

Auxin

a plant hormone that controls the responses of plants to light (phototropism) and gravity (gravitropism)

Contraception

methods of preventing pregnancy which usually involve preventing the sperm and egg from meeting

endocrine system

the glands that produce the hormones that control many aspects of the development and metabolism of the body, and the hormones they produce follicle stimulating hormone (FSH) causes the eggs to mature in the ovary

Gibberellins

plant hormones that are important in initiating seed germination

Glucagon

hormone involved in the control of blood sugar levels

Gravitropism

the response of a plant to gravity

Hormones

chemicals produced in one area of the body of an organism that have an effect on the functioning of another area of the body. In animals hormones are produced in glands

Insulin

hormone involved in the control of blood sugar levels

Oestrogen

female sex hormone that controls the development of secondary sexual characteristics in girls at puberty, and the build

Ovaries

female sex organs that produce eggs and sex hormones

Ovulation

the release of a mature egg (ovum) from the ovary

Phototropism

the response of a plant to light, controlled by auxin

pituitary gland

endocrine ‘master gland’ found in the brain that secretes a number of different hormones into the blood in response to different conditions to control other endocrine glands in the body

Testosterone

the main male sex hormone that controls the male secondary sexual characteristics at puberty and the production of sperm

Tropism

the responses of plant roots and shoots to environmental stimuli such as light or gravity

type 1 diabetes

a disorder where the pancreas fails to produce sufficient insulin

type 2 diabetes

a disorder where the body cells no longer respond to the insulin produced by the pancreas