Lec. 14 - Harvesting Energy

Question 1

What are the 4 stages of cellular respiration?

Answer 1

Glycolysis, pyruvate oxidation, Krebs cycle, and ETC

Question 2

Explain the difference between substrate-level and oxidative phosphorylation.

Answer 2

In sub-level phospho, ATP is directly synthesized by transferring a phosphate group from a high energy compound to ADP. In oxidative phospho, high energy electrons from NADH and FADH2 transferred through a series of protein complexes in the ETC.

Question 3

Describe the inputs, outputs, and location of glycolysis.

Answer 3

Inputs are glucose, ATP, and NAD+. Outputs pyruvate, ATP, and NADH. It is located in the cytoplasm of the cell.

Question 4

Explain the role of fermentation.

Answer 4

Fermentation is an anaerobic metabolic process that allows cells to generate ATP without the use of oxygen.

Question 5

Explain how chemiosmosis is involved in ATP syth.

Answer 5

It is involved through proton gradient formation, proton flow through ATP synth, ATP synth, and ATP production.