I really am having trouble understanding cellular respiration. I mostly understand the parts and the steps but I'm not sure how everything fits together. I have a biology quiz tomorrow. Please Help

Answer/Explanation:

When cell absorbs light energy it begins photosynthesis (process by which sunlight is transformed into food for the plant). The light energy is absorbed by the chloroplast. Photosynthesis happens and oxygen, water, and glucose are produced. These are transported to the mitochondria where ATP (chemical energy) is released. All that is left is Carbon dioxide and water which are moved back to the chloroplast. This process between the mitochondrion and the chloroplast is cellular respiration.

so when water is broken down to from oxygen during phostosythesis the cellular respiration oxygen is combined eith hydrogen to from water while phostosythesis requires carbin dioxide and release oxygen so that cellular respiration requires oxygen to release cardon dioxide without oxygen and ATP be produced

hopefully i made it easier for you if not i am sorry i tried

QUESTION: How does the electron transport chain use the high-energy electrons from glycolysis and

the krebs cycle?

Together with glycolysis, The Krebs cycle, and the electron transport chain release about 36 molecules of ATP per molecule of glucose.The Krebs cycle uses the two molecules of pyruvic acid formed in glycolysis and yields high-energy molecules of NADH and flavin adenine dinucleotide (FADH2), as well as some ATP. The electron transport chain forms a proton gradient across the inner mitochondrial membrane, which drives the synthesis of ATP