Cellular Respiration and Photosynthesis Flashcard

Front

What is the role of NADH and FADH2 in cellular respiration?

Back

They donate electrons to the electron transport chain.

Front

What was the Great Oxidation Event?

Back

The first significant appearance of atmospheric oxygen.

Front

How many ATP molecules can be yielded from 10 NADH and 2 FADH₂ molecules after the first three steps of cellular respiration?

Back

34 ATP.

Front

What happens if a cell cannot produce NADH and FADH2 during cellular respiration?

Back

Decreased ATP production.

Front

How many FADH2 molecules are produced during the Citric acid (Krebs) cycle?

Back

2.

Front

Define cellular respiration.

Back

The process by which cells convert glucose and oxygen into energy (ATP), carbon dioxide, and water.

Front

What are the three main stages of cellular respiration?

Back

Glycolysis, Krebs cycle, and Electron Transport Chain.

Front

What is glycolysis?

Back

The first step of cellular respiration that breaks down glucose into pyruvate, producing a small amount of ATP.

Front

What is the main purpose of the Krebs cycle?

Back

To produce electron carriers (NADH and FADH2) and ATP from the breakdown of acetyl-CoA.

Front

What is the electron transport chain?

Back

A series of protein complexes in the inner mitochondrial membrane that transfer electrons and pump protons to generate ATP.