5. Root cells obtain oxygen from air.
G State whether these statements are true or
false. If false, rewrite the correct form of
his statements.
1. The air that is breathed out is rich in oxygen
2. Cell respiration is an exergonic process
walion
3. Plants carry out photosynthesis only during
daytime and respiration only at night
4. No carbon dioxide is released by plant cells
during daytime
Answers
1. The air that is breathed out is rich in carbon dioxide
2. True
3. Plants respire all the time, day and night.
4. True
Answer:
1- true
The amount of inhaled air contains 21% of oxygen and 0.04% of carbon dioxide, while the air we breathe out contains 16.4% of oxygen and 4.4% of carbon dioxide.
2- true
Catabolism refers to the exergonic process by which energy released by the breakdown of organic compounds such as glucose can be used to synthesize ATP, the form of energy required to do cellular work. ... Aerobic respiration is an exergonic pathway that requires molecular oxygen (O2).
3-false
Plants respire all the time, day and night. But photosynthesis only occurs during the day.
4-false
Plants give out carbon dioxide not only at night but during the day too. It happens because of the process of respiration in which plants take in oxygen and give out carbon dioxide.