Question

Two steps of respiration

Answer 1

Steps Of Respiration1. Breathing: Taking in air rich in oxygen (inhalation) and giving out air rich in carbon dioxide (exhalation) using respiratory  system is called breathing.2. Cellular Respiration: The process of breakdown of food in the cells with the release of energy is called cellular respiration.

(OR)

Steps of cellular respirationGlycolysis. Six-carbon glucose is converted into two pyruvates (three carbons each). ...Pyruvate oxidation. Pyruvate travels into the mitochondrial matrix and is converted to a two-carbon molecule bound to coenzyme A, called acetyl CoA. ...

Answer 2

Aerobic (“oxygen-using”) respiration occurs in three stages: glycolysis, the Krebs cycle, and electron transport. In glycolysis, glucose is split into two molecules of pyruvate. This results in a net gain of two ATP molecules..........