Stages of aerobic cellular respiration

Answer 1

There are 3 processes in aerobic respiration. Glycolysis, Kreb's cycle, and electron transport chain.

A very, very simply, the equation for all those processes is Glucose + Oxygen = Energy + Carbon Dioxide + Water.

But I will describe all these steps a little more detailed for you:

Glycolysis:

1- one molecule of glucose is converted into pyruvate

2- pyruvate is converted into acetyl CoA and CO2

3- the acetyl-CoA enters the citric acid cycle (Kreb's Cycle)

4- 2 ATP molecules, 2 water molecules, and 2 NADH molecules are produced.

Kreb's Cycle:

5- Acetyl CoA is converted into citrate which then goes through a serious of chemical transformations, losing 2 carboxyl groups as CO2 (it is converted back to acetyl CoA by losing the 2 CO2 molecules which helps the production of citric acid)

6- citric acid is broken down and makes 2 molecules of CO2

7- After 2 complete cycles of the Kreb's cycle, 6 NADH molecules, 2 FADAH2 molecules, 2 ATP molecules, and 4 CO2 molecules are produced.

The Electron Transport Chain:

8- H+ electrons from molecules produced in previous steps (H+ removed from NADH, making it NAD+)

9- the H+ are combined with O2 molecules through different membrance transports and the electrical potential between all chemicals is used to generate ATP from ADP+phosphate

10- 32-34 molecules of ATP are produced

Overall, 38 molecules of ATP are generated for every molecule of glucose in the aerobic respiration steps.

Hope this helps. Sorry if I was unclear at any point.

Answer 2

Respiration is what allows or enables Metabolism to Occur.

Respiration cannot take place without fuel for combustion and Oxygen [di-atomic] molecules to provide the combust.

With O2 freely available the first stage is complete. The next critical phase is the acquisition and processing of Foodstuffs; and this provides biochemicals that are used as 'input' for Cellular respiration biochemical processes that provide [generate], primarily, Atp that is used to 'fuel' all Biochemical reactions.

Answer 3

Glycolysis -----> citric acid cycle (aka Krebs cycle) -----> oxidative phosphorylation via the electron transport chain and chemiosmosis

Answer 4

Glycolysis , Krebs cycle , ETC .

Answer 5

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