483 Lecture Notes - Lecture 3: Stoma, Food Energy, Chemical Energy

• School: University of Canberra
• Department: University of Canberra
• Course: 483
• Professor: katie cohan

Document Summary

Atp adenosine triphosphate: the phosphate groups are negatively charged, and the transfer of a phosphate group to another molecule makes some energy available. Adds a phosphate group back to adp. Chemical energy from food is used to generate. Atp from adp + p during cellular respiration. The energy cycle: photosynthesis captures solar energy & co2 to produce oxygen & carbohydrates, cellular respiration uses oxygen & carbohydrates to produce atp energy and co2 (plants have both mitochondria and chloroplasts, animal cells have only mitochondria) Cellular respiration: aerobic process requires oxygen, breakdown of glucose to produce atp, multi step process! The role of oxygen: breathe in o2, o2 transported to your cells, o2 used in cellular respiration, co2 (waste) diffuses to the lungs and get expelled. The role of oxygen: during cellular respiration, hydrogen + its electrons change partners. From sugar to oxygen, forming water: oxygen attracts electrons - (cid:862)ele(cid:272)tro(cid:374) gra(cid:271)(cid:271)er(cid:863) Very important in the electron transport chain oxidation.