Homeostasis

Question 1

What is homeostasis?

Answer 1

Homeostasis is maintaining the internal environment (37 degrees).

Question 2

What is Thermoregulation?

Answer 2

Regulating the temperature of the body.

Question 3

Why is Thermoregulation important?

HINT::(enzymes)

Answer 3

To ensure the enzymes can work efficiently:

• temperatures two high= active site denatures and enzyme cannot bind to form a reaction.
• temperature too low= enzymes do not work fast enough.

Question 4

What is Osmoregulation?

Answer 4

Regulating the water temperatures in the body.

Question 5

Why is Osmoregulation important?

Answer 5

To ensure the cells in the body do not burst because of too much water, via osmosis.

To ensure the cells do not become deprived of water and shrivel up.

Question 6

Name 2 ways in which we remove water

Answer 6

• urine

- sweating

Question 7

What is Blood-Glucose Concentration?

Answer 7

Blood Glucose Concentration is regulating the amount of glucose in the blood.

Question 8

What are the two organs that store excess glucose?

Answer 8

• Liver

- Muscle Cells

Question 9

How is the excess glucose stored?

Answer 9

Stored in the liver and muscle cells as GLYCOGEN.

Question 10

How does the body react to less Glucose in the blood?

Answer 10

Pancreas release the hormone glucagon to travel to the liver and convert the stored glycogen back into glucose and release it into the blood.

Question 11

How does the body react to having too much glucose?

Answer 11

Pancreas releases the hormone Insulin to move the glucose from the blood into the cells. In Liver and Muscle cells excess glucose is converted into glycogen and stored for later use.

Question 12

What is the term that relates to High Blood Sugar?

Answer 12

Hyperglycaemia

Question 13

What happens when your body is too warm?

Answer 13

• Sweat = water is released in which heat energy also escapes
• Vasodilation = in which blood vessels close to the skin begin to dilate (go bigger) to release heat