Unit 3

Question 1

Describe Aerobic Cellular Respiration

Answer 1

1. In Glycolysis, glucose is converted into pyruvate, which is more usable. It produces 2 pyruvate and 2 ATP molecules. This is anerobic.
2. The 2 pyruvate are transported by active transport into the mitondrial matrix. Pyruvate is converted into acetyl CoA, CO2 is released, and 2 NADH is made
3. In the Kreb’s cycle in the mitochondrial matrix, anerobic resporation is perfomed to make 2 ATP, 6 NADH, and 2FADH2 (another electron carrier)
4. In the electron transport, oxygen is required to help in the inner mitochondrial membrane. NADH and FADH2’s carried electrons are used to generate a proton electrochemical gradient. H+ flows once again along with the electrochemical gradient through ATP Synthase to produce ATP from ADP. Water is produced in this step. This produces 26-34 molecules of ATP

A total of 30-38 molecules of ATP are produced

Question 2

Describe Anerobic Cellular Respiration

Answer 2

It follows the same process of aerobic cellular resporation except sulfate is used as the final electron acceptor instead of oxy.gen

Question 3

Describe Fermentation

Answer 3

Glycolysis is performed which creates ATP and NADH