Cellular Respiration

Question 1

Cellular respiration stages

Answer 1

Glycolysis, pyruvate oxidation and citric acid cycle, oxidative phosphorylation

Question 2

Glycolysis

Answer 2

In the cytosol, glucose is converted to two pyruvate molecules,ATP is released, and electrons are carried by NADH to the inner membrane

Question 3

Pyruvate oxidation

Answer 3

2pyruvate goes to 2 acetyl COA and CO2 is released. The acetyl COA moves to the citric acid cycle, where more CO2 and some ATP is produced. Electrons from both steps also carried by NADH (and FADH2 from the citric acid cycle) to the inner membrane

Question 4

Oxidative phosphorylation two parts

Answer 4

Electron transport, chemiosmosis

Question 5

Electron transport chain

Answer 5

NADH and FADH2 move electrons to the inner membrane. These move through protein complexes (attracted by oxygen atoms) and lose energy, which is used to pump protons into the inner membrane space. Protons attach to the oxygen to form water

Question 6

chemiosmosis

Answer 6

The concentration gradient causes protons to more back across the inner membrane through ATP synthase. This movement spins a rotor which allows a phosphate group to be attached to ADP to make ATP