can someone explain the steps of aerobic respiration?

Question

explain glycolysis, Krebs cycle, and electron transport chain

Answer 1

Cellular respiration can be divided up into 3 stages:

Glycolysis
Krebs Cycle (Citric Acid Cycle)
Electron Transport Chain (ETC) and oxidative phosphorylation

Glycolysis: harvests chemical energy by oxidizing glucose to pyruvate. Glycolysis is a catabolic pathway during which six-carbon glucose is split into 2 three- carbon sugars,which are then oxidized and rearranged to produce two pyruvate molecules. Each reaction is catalyzed by specific enzymes dissolved in the cytosol.
No carbon dioxide is released as glucose is oxidized to pyruvate. All the carbon can be accounted for in the 2 molecules of pyruvate. It occurs under aerobic or anaerobic conditions. The process occurs in two phases: The energy investment phase and the energy yielding phase.

The Krebs Cycle: completes the energy yielding oxidation of organic molecules.
Most of the chemical energy originally stores in glucose still remains in the two pyruvate molecules produced by glycolysis. The fate of pyruvate depends upon the presence or absence of oxygen. If oxygen is present, pyruvate enters the mitochondrion where it is completely oxidized by a series of enzyme-controlled reactions. The junction between glycolysis and the Krebs Cycle is the formation of Acetyl-CoA. The Acetyl-CoA combines with oxaclacetic acid to begin the cycle. This process occurs in the mitochondrial matrix.

The Electron Transport Chain: is made of electron carrier molecules embedded in the inner mitochondrial membrane. Each successive carrier in the chain has a higher electronegativity than the carrier befor it, so the electrons are pulled down hill toward the oxygen.
Except for ubiquinone (Q), most of the carriers are protein containing a non -protein cofactor. The cofactors alternate between an oxidized and reduced state as they accept and donate electrons.

Answer 2

Steps Of Aerobic Respiration

Answer 3

glycosis=glucose is split into smaller molecules in the cytosol. Krebs cycle=completely metabolizes the products of glycosis. electron transport chain=harvests energy from the movement of electrons

Answer 4

significant tiers of cellular respiration: a million) Glycolysis-occurs in cytoplasm of cellular-evolutionarily historic-all residing issues do glycolysis. evaluate: 6-carbon compound (glucose-power wealthy)-------->3-carbon compound (pyruvic acid = pyruvate) Generates 2 ATP and 2 NADH+H (a provider molecule that shuttles electrons (e-) and protons (H+) from one area of the cellular to a distinctive.) 2) Acetyl CoA formation----------->intermediate step that takes the products of glycolysis into the mitochondria. generates 2NADH + H 3) Krebs cycle------------>occurs in matrix of mitochondria evaluate: 3-carbon compound----------->CO2 (power undesirable-exhaled from the physique) generates 2ATP and 6NADH+H and 2FADH2 (extra electrons and protons linked with H+) those 3 tiers generate basically a small volume of usable power-4 ATP-this ATP is generated via substrate-point phosphorylation. A phosphate (PO4) is linked to ADP via an enzyme catalyzed reaction. 4) Chemiosmosis (ATP synthesis)-most of the ability from glucose is stored quickly interior the provider molecules (NADH+H and FADH2). those provider molecules are exceeded directly to the electron transport chain (respiration chain)-on the indoors membrane of the mitochondria. because of the fact the indoors membrane is in-folded to type the cristae this a great deal will boost the exterior area and thousands of electron transport chains could properly be working at as quickly as. The electron transport chain is a sequence of molecules (maximum of that are proteins) that act as companies additionally-intense power electrons are pulled off the provider molecules NADH+H and FADH2. those electrons are exceeded from provider to provider-each and each has a more suitable pull, like a magnet,-power is stripped off the electrons and used to pump (energetic transport) H+ around the membrane, and supply way a gradient (passive transport). The membrane is permeable to the ions (H+) basically the place channels are created via ATP-synthesizing enzyme. because of the fact the H+ bypass interior the direction of the ATP synthase ADP is switched over to ATP via the addition of a phosphate team (oxidative phosphorylation). This generates an added 34 ATPs from one molecule of glucose. the wonderful acceptor interior the electron transport chain is oxygen-the electrons alongside with H+ interior the matrix type water-H2O.