Homeostasis

Question 1

Is there more water in fat or muscle?

Answer 1

Muscle.

Question 2

What does the capillary wall separate and what is it permeable to?

Answer 2

it separates the interstitial fluid and plasma of the ECF, and it is permeable to everything but proteins, which are found in abundance in the plasma.

Question 3

How much of the body’s water is found in the intracellular fluid?

Answer 3

2/3

Question 4

What is negative feedback control system?

Answer 4

The change magnitude is sensed by a receptor, which feeds info to the integrating centre, where the difference is compared with a REFERENCE level. Difference creates a signal, which is fed to an effector, to generate response.

Question 5

What is a feed forward system?

Answer 5

Predicts and prevents change (anticipates change before happening).

Question 6

What is positive feedback control?

Answer 6

self - propagation. opposite of negative - initial disturbance is amplified. E.g action potentials etc. E.g Diabetes - inability to take up glucose, more glucose produced.