B11Hormonal coordination

Question 1

Name the key Endocrine glands

Answer 1

Pituitary,
-Thyroid,
-Pancreas,
-Adrenal,
-Ovaries
-Testes

Question 2

What is the endocrine system?

Answer 2

Glands that secrete chemicals called hormones directly into the bloodstream. Blood carries the hormone to a target organ where it produces an effect. Slower but longer lasting

Question 3

What is the pituitary gland?

Answer 3

Master gland which secretes several hormones into the blood.

Question 4

Blood glucose concentration?

Answer 4

Pancreas produces insulin which allows glucose to move from the blood into the cells and to be stored as glycogen in the liver and muscles.
-Also produces glucagon which allows glycogen to be converted back into glucose and released back into blood. Negative Feedback Cycle

Question 5

compare type 1 diabetes to type 2

Answer 5

-in 1, the blood glucose rises to fatally high levels as the pancreas doesn’t have secrete enough insulin

-in 2, the body stops responding to its own insulin

Question 6

how is type 1 diabetes controlled

Answer 6

insulin injections to replace hormone not made.

Question 7

How can Type 2 diabetes be controlled?

Answer 7

Carbohydrate controlled diet, more exercise. Drugs may be needed

Question 8

What does Thyroxine do?

Answer 8

Stimulates basic metabolic rate. Growth and development

Question 9

What is Adrenaline?

Answer 9

Produced in times of fear/stress. Increases delivery of oxygen and glucose to brain, preparing body for fight or flight.

Question 10

Difference between Thryoxine and Adrenaline

Answer 10

Thyroxine is controlled by negative feedback.

Question 11

DO 11L5 AND6AN78 FOR GCSE