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6. Active Transport involves the movement of substances from ..........................
- a low concentration to a high concentration
- a high concentration to a low concentration
7. What do the lungs exchange with the atmosphere?
- Carbon Dioxide
- Oxygen and Carbon Dioxide
- Oxygen
- Nitric Oxide
- All of the above
8. Why is oxygen needed?
- it is a waste product of respiration
- for aerobic respiration
- for anaerobic respiration
- It isn
9. Why is Carbon Dioxide exchanged?
- It isn
- for aerobic respiration
- it is a waste product of respiration
- for anaerobic respiration
10. Why is Nitric Oxide exchanged?
- it is a waste product of respiration
- for aerobic respiration
- It isn't
- for anaerobic respiration
11. What gives the lungs a large surface area?
- a sac
- POTATO.
- alveoli
- villi
12. Give an adaptation of a villus for gas exchange
- Thin walls
- Golden brown skin
- Large
- Bumpy walls
13. Give another adaption for (answer to Q11)
- Moist surface
- Taste great roasted.
- many different varieties.
- Course skin.
14. Where does Oxygen diffuse into?
- Back out into the lungs.
- Capillaries surrounding (answer to Q11)
- It isn
- Veins surrounding (answer to Q11)
- Arteries surrounding (answer to Q11)
15. Where does Nitric Oxide diffuse into?
- It doesn't
- Back out into the lungs.
- Capillaries surrounding (answer to Q11)
- Arteries surrounding (answer to Q11)
- Veins surrounding (answer to Q11)
16. Where does Carbon Dioxide diffuse into?
- Veins surrounding (answer to Q11)
- It isn
- Capillaries surrounding (answer to Q11)
- Back out into the lungs.
- Arteries surrounding (answer to Q11)
17. What is in the Thorax?
- The lungs
- All of the above
- The heart
- The gut
18. Where does the absorption of digested food take place?
- The small Intestine and the capillaries
- The small Intestine
- The capillaries
- The gut
- The large Intestine
19. What is digested food absorbed by?
- The liver
- Capillaries in the villi
- nothing.
20. What increases the surface area in the small intestine?