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6. If the body is too cold, enzymes:
- carry on working
- deactivate
- denature
7. In haemodialysis, the concentration of toxins is:
- equal to that of the blood so there is no change
- very low to increase diffusion of them from the blood into the solution
- high to draw in more toxins from the blood
8. If a cell is in an isotonic solution, the solute will:
- remain at an equilibrium
- move out of the solution and into the cell
- move out of the cell and into the solution
9. The hormone that causes the release of glucose when blood sugar levels are low is called:
- glucagon
- oestrogen
- insulin
- ADH
10. If a cell is in a hypertonic solution, the solute will:
- remain at an equilibrium
- move out of the solution and into the cell
- move out of the cell and into the solution
11. Vasodilation is when:
- arterioles dilate to increase blood flow to skin capillaries, occurring when you are too hot
- sweat glands produce less sweat, occurring when you are too cold
- arterioles constrict to decrease blood flow to skin capillaries, occurring when you are too cold
- sweat glands produce more sweat, occurring when you are too hot
12. Arterioles are:
- small one cell wide capillaries
- small arteries connecting main arteries to capillaries
- the major arteries of the body
13. ADH is released to:
- target cells in the collecting duct and make them reabsorb water when the body is thirtsy
- make cells in the nephron stop reabsorbing water so it passes to the bladder to be expelled from the body
- filter out substances like urea and glucose from the blood
14. Blood sugar levels are monitored by the:
- stomach
- appendix
- pancreas
- liver
15. If a cell is in a hypotonic solution, the solute will:
- move out of the cell and into the solution
- move out of the solution and into the cell
- remain at an equilibrium
16. Insulin, released when blood sugar levels are too high, causes:
- sugar to be released in the urine to lower the levels
- a chain of reactions that convert glucose into glycogen to be stored in the liver/muscles
- the liver to release glycogen in the form of glucose