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Sagot :
Complex 1
Complex 2
In aerobic respiration, NADH is oxidized at Complex 1, while FADH2 is oxidized at Complex 2.
What is aerobic respiration?
- In the presence of oxygen gas, cells undergo cellular respiration, which is how energy from food is produced.
- The majority of plants, animals, birds, humans, and other mammals all engage in this sort of respiration regularly.
- As byproducts of this process, water and carbon dioxide are created.
Which five steps make up aerobic respiration?
- Glycolysis, pyruvate oxidation, Krebs's cycle, the electron transport chain, and chemiosmosis are the five steps that must occur for aerobic respiration to take place.
What is glycolysis?
- A cytoplasmic mechanism called glycolysis converts glucose into two molecules with three carbons each and releases energy.
- Hexokinase, a phosphorylating enzyme, assists in the phosphorylation process that traps glucose.
- This reaction uses adenosine triphosphate (ATP), and the end result, glucose-6-P, inhibits hexokinase.
What is pyruvate oxidation?
- It takes place in the cytoplasm of prokaryotes.
- Overall, pyruvate oxidation transforms the three-carbon molecule into the two-carbon molecule acetyl CoA , C, o, A, which is attached to Coenzyme A.
- This results in a NADH , N, A, D, H, and the release of one carbon dioxide molecule.
What is Krebs cycle?
- The primary source of energy for cells and an essential component of aerobic respiration is the tricarboxylic acid (TCA) cycle, sometimes referred to as the Krebs or citric acid cycle.
- The cycle converts the acetyl coenzyme A (acetyl CoA) chemical energy into the reducing force of nicotinamide adenine dinucleotide (NADH).
What is Electron transport chain?
- The oxidative phosphorylation process, also known as the electron transport chain, is a collection of four protein complexes that combine redox events to produce an electrochemical gradient that results in the production of ATP.
- Both photosynthesis and cellular respiration take place in mitochondria.
What is chemiosmosis?
- The process of ions (often H+ ions, commonly referred to as protons) diffusing across a membrane that is selectively permeable is known as chemiosmosis.
- Chemiosmosis produces a concentration gradient of the diffusing ion across the membrane, similar to osmosis.
- Potential energy that can perform work is present in concentration gradients.
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