A system that regulates body conditions; glands           secrete hormones into the blood that target specific organs.

A chemical substance produced by a gland that travels in the bloodstream to a specific organ.

An organ or tissues that produces and secretes substances, such as hormones.

Specialised cells that detect changes in the environment (stimuli) and respond by stimulating electrical impulses.

The human endocrine system

Biology

Insulin and the control of blood sugar level

Insulin, glucagon and the control of blood sugar level

Type 1 and type 2 diabetes

Adrenaline, thyroxine and negative feedback

Pupils will learn more about photosynthesis in producers, including a two-stage model of the process and the requirements and products of each stage.

Pupils learned how the components of the human nervous system enable us to respond quickly to changes outside and inside our bodies.

This unit explores hormonal control by the endocrine system, including blood sugar regulation by insulin and glucagon, and the roles of thyroxine and adrenaline. It covers the importance of maintaining a stable internal environment and compares types 1 and 2 diabetes and their treatments.

Coordination and control: hormones and the human endocrine system

homeostasis is the regulation of the internal conditions to maintain optimum conditions for enzyme action and all cell functions

a chemical reaction in living organisms that releases energy from glucose

a hormone secreted by the pancreas when blood glucose is too high, lowering blood glucose levels

a sugar that travels in the blood and is supplied to cells for respiration

a stored form of glucose found in liver and muscle cells

a chemical reaction in livings organisms that releases energy from glucose

is a sugar that travels in the blood and is supplied to cells for respiration

is a stored form of glucose found in liver and muscle cells

a hormone secreted by the pancreas when blood glucose is too low, increasing blood glucose levels

a chemical substance produced by a gland that travels in the bloodstream to a specific organ

an organ or tissues that produces and secretes substances, such as hormones

a glandular organ in the body that detects changes in blood glucose concentration and secretes insulin

a condition in which the body is unable to regulate blood glucose concentration

A hormone secreted by the adrenal glands in times of fear or stress.

A hormone secreted by the thyroid gland that stimulates the basal metabolic rate.

A mechanism where changes to conditions cause an action to reverse the change, keeping conditions stable.

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Coordination and control: hormones and the human endocrine system

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