1.Why do we get muscle cramps after heavy exercise?
2. Why does a potted plant die when over watered?
3. Where are stomata found in a plant? State their function.
4. How is oxygen transported from lungs to the other parts of the body?
5. Draw a neat, well-labelled diagram of the human respiratory system.
Answers
Answer:
1:
The cramps occur when muscle cells respire anaerobically. The partial breakdown of glucose produces lactic acid. The accumulation of lactic acid causes muscle cramps.
2:
Roots growing in waterlogged soil may die because they cannot absorb the oxygen needed to function normally. The longer the air is cut off, the greater the root damage.
3:
Stomata are tiny openings or pores in plant tissue that allow for gas exchange. Stomata are typically found in plant leaves but can also be found in some stem.
4:
Each air sac is surrounded by a network of fine blood vessels called capillaries. The oxygen in inhaled air passes across the thin lining of air sacs and into the blood vessels. This is known as diffusion. The oxygen in the blood is then carried around the body in bloodstream , reaching every cell.
5:
Diagram you can see in your book or on Chrome..
:)
Answer:
I don't know this answer