what is aerobic respiration ?

Question

please dont write me a story for this one. thx!

Answer 1

Aerobic respiration requires oxygen in order to generate energy. It is the preferred method of pyruvate breakdown from glycolysis and requires that pyruvate enter the mitochondrion to be fully oxidized by the Krebs cycle. The product of this process is energy in the form of ATP (Adenosine Triphosphate), by substrate-level phosphorylation, NADH and FADH2. The reducing potential of NADH and FADH2 is converted to more ATP via an electron transport chain with oxygen as the "terminal electron acceptor". Most of the ATP produced by cellular respiration is by oxidative phosphorylation, ATP molecules are made due to the chemiosmotic potential driving ATP synthase. Respiration is the process by which cells obtain energy when oxygen is present in the cell.

Theoretically, 36 ATP molecules can be made per glucose during cellular respiration, however, such conditions are generally not realized due to such losses as the cost of moving pyruvate into mitochondria. Aerobic metabolism is more efficient than anaerobic metabolism. They share the initial pathway of glycolysis but aerobic metabolism continues with the Krebs cycle and oxidative phosphorylation. The post glycolytic reactions take place in the mitochondria in eukaryotic cells, and in the cytoplasm in prokaryotic cells.

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Answer 2

Both occur inside your living cells. The more active a given cell is the more of both occur. Both deal with the conversion of energy stored in the chemical bonds of glucose into useable cellular energy called ATP. Anaerobic respiration (An. R.) must occur first and aerobic (A.R.) occurs second for a particular molecule of glucose. No glucose is directly involved in A.R. An.R. breaks down glucose (6 carbon molecule) into 2 molecules of pyruvic acid (3 carbon molecule) and produces 4 ATP molecules but uses 2 ATP molecules to do so. This takes place in the cytoplasm. Pyruvic Acid then enters A.R. It is here were the most of the ATP is produced. Through three different sets of reactions (with oxygen being one of the reactants) pyruvic acid is broken down, more ATP (about 34 ATP molecules) is produced along with carbon dioxide (6 molecules) and water (6 molecules). A.R. occurs inside the mitochondrion. Cells without mitochondrion (bacteria) can only carry out anaerobic respiration.

Answer 3

Release of energy by taking oxygen is called aerobic respiration

Answer 4

Aerobic respiration is the breakdown of glucose to form ATP by the use of oxygen
Opposed to anerobic respiration- don't use O2