The amount of oxygen needed to break down the lactic acid produced during anaerobic respiration.
A term to describe the act of holding your breath.
The term used when bankers are out of breath.
The amount of oxygen needed to break down the carbon dioxide produced during aerobic respiration.
7. Anaerobic respiration occurs in humans when...
There is a high concentration of water vapor in the air.
They have a low concentration of haemoglobin in their red blood cells.
The body can't supply enough oxygen to the muscles.
When they are very scared.
8. Anaerobic respiration in humans produces energy, as well as...
Methane
Lactic Acid
Water Vapour
Carbon Dioxide
9. What does each muscle have its own store of?
Oxygen
Glycogen
Icecream
Glucagon
10. What can arteries do to increase blood supply to the muscles?
Stretch
Dilate
Shut down
Contract
11. What happens to useful substances in the nephrons?
They carry on into the ureter.
They are reabsorbed back into the blood.
The nephrons use them to grow.
They are removed when you breathe out.
12. Which of these should NOT be found in the urine of a healthy person
Ions
Water
Glucose
Urea
13. What is dialysis fluid?
A fluid containing more dissolved substances than would usually be found in 'healthy' blood.
A fluid containing none of the substances that would usually be found in 'healthy' blood.
A fluid containing the ideal amounts of substances found in 'healthy' blood.
A fluid containing less dissolved substances than would be found in 'healthy' blood.
14. What happens in a dialysis machine?
Blood flows past a selectively permeable membrane with dialysis fluid on the other side. This causes waste substances in the dialysis fluid like urea to diffuse out of the dialysis fluid and into the blood.
Blood flows past a selectively permeable membrane with dialysis fluid on the other side. This causes waste substances in the blood like urea to diffuse out of the blood and into the dialysis fluid.
Blood flows past a selectively permeable membrane with dialysis fluid on the other side. This causes waste substances in the blood like urea to move via active transport out of the blood and into the dialysis fluid.
Blood flows past a selectively permeable membrane with dialysis fluid on the other side. Nothing happens.
15. What is transpiration?
Transpiration is the absorption of water in the root hair cells.
Transpiration is the opposite of inspiration.
Transpiration is the loss of water vapour through the stomata in the leaves of a plant.
Transpiration is the loss of water vapour through the stomata in the skin of an animal.
16. Which of these factors does NOT increase transpiration?
Sunlight
Wind
Aridity (dryness)
Heat
17. What is formed when oxygen binds with haemoglobin in red blood cells?
Nitrohaemoglobin
Carbohaemoglobin
Oxyhaemoglobin
Gravy
18. What substance found in milk is used by bacteria to create energy and lactic acid?
Starch
Lactose
Glucose
Lucozade
19. The blood in the arteries is under a much higher pressure than the blood in the veins.
