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Who is the source of oxygen in carbon dioxide produced by respiration Is it from oxygen
No, there are two sources of carbon dioxide in respiration: aerobic respiration and anaerobic respiration
1. In aerobic respiration, glucose and other organic substances are completely decomposed to produce carbon dioxide and water
2. In anaerobic respiration, pyruvate produces alcohol and carbon dioxide under the catalysis of different enzymes, or directly produces lactic acid
Plant respiration and its utilization
1. Plant respiration: it is the process that plants absorb oxygen, convert organic matter into carbon dioxide and water, and release energy. It provides energy for various life activities of plants (respiration is the demand of life), that is, the process that chloroplasts in leaves absorb water and carbon dioxide, and convert them into oxygen and glucose under light conditions
2. All organs of the plant can breathe!
3. Even the individual tissues or living cells separated from the plant can carry out respiration!
Plant respiration is a necessary process for plants to obtain energy for growth
Respiration is divided into aerobic respiration and anaerobic respiration. Under oxygen rich conditions, glucose in plants decomposes into water and carbon dioxide by reacting with oxygen, and releases a lot of energy to supply plants
In oxygen deficient environment, plants decompose glucose into lactic acid or alcohol, which is harmful to plants
RELATED INFORMATIONS
- 1. Students in a research study group used the following devices to explore the respiration of plants
- 2. In the experiment of studying the conditions of lever balance, we should balance the lever in the horizontal position first. What is the purpose of doing this?
- 3. What is the principle of light lever
- 4. How to explain the principle of balance with lever
- 5. The fulcrum of lever aocb is o. OA = CB = 40. OC = 30. OA vertical OC. OC vertical CB hangs 49 n object on A. B at least needs force to keep lever Ao horizontal. It has a direction of force A_________________ O l l l__________________ B C
- 6. In the experiment of exploring the mechanical efficiency of pulley block, what is the experimental principle
- 7. What are the rules of mechanical efficiency of pulley block? The more hook yards, the greater the mechanical efficiency
- 8. What factors are related to the mechanical efficiency of leverage
- 9. Why should the balance beam be made equal arm
- 10. What kind of lever is the balance? What principle does it use?
- 11. Animals and plants can inhale oxygen and exhale carbon dioxide. What is the function of organisms Now!
- 12. When plants breathe at night, they should absorb oxygen and release carbon dioxide as usual, but will they also absorb a little carbon dioxide to breathe? When plants breathe at night, they should absorb oxygen and release carbon dioxide as usual But will it also absorb a little carbon dioxide to breathe?
- 13. People and animals need to consume oxygen for breathing. Why can the volume fraction of oxygen in the air always maintain 21% 1. People and animals need to consume oxygen for breathing. Why can the volume fraction of oxygen in the air always maintain about 21%? 2. Can we draw a conclusion that nitrogen accounts for about 4 / 5 of the air from the burning experiment of red phosphorus in the bell jar? Why? 3. If there is water vapor in the air, will the content of water vapor change
- 14. In the article "carbon dioxide", green plants and carbon dioxide give out oxygen when they do (). Animals breathe in oxygen and exhale carbon dioxide. In this way, they keep ()
- 15. [chemistry] design an experiment to prove that respiration produces carbon dioxide
- 16. Please design a simple experiment to prove the existence of air in the mineral water bottle
- 17. The reason why the respiration of plants is not obvious under light is () A. Photosynthesis is strong, absorbing carbon dioxide B. respiration is not carried out under light C. photosynthesis inhibits respiration D. respiration is weakened under light
- 18. Why do you drop a drop of water on the slide for onion mounting in the first volume of the seventh grade of human education (what's the purpose of dropping water) but why do you drop normal saline when you do oral epithelium mounting? Why can't you drop water?
- 19. Is it related to the respiration of plants that "grain should be dried in the sun before entering the warehouse"?
- 20. The significance of plant respiration