Glycolysis and Krebs Cycle

Front

What is the primary substrate that glycolysis breaks down into pyruvate?

Back

Glucose

Front

In which cellular organelle does the Krebs cycle occur?

Back

Mitochondria

Front

Does glycolysis require oxygen to occur?

Back

No, glycolysis is an anaerobic process.

Front

Where in the cell does glycolysis take place?

Back

Cytoplasm

Front

Is glycolysis the second stage of cellular respiration?

Back

No, glycolysis is the first stage.

Front

What are the end products of glycolysis?

Back

2 pyruvate molecules, 2 ATP, and 2 NADH.

Front

What is the main purpose of the Krebs cycle?

Back

To produce electron carriers (NADH and FADH2) for the electron transport chain.

Front

What is the starting molecule for the Krebs cycle?

Back

Acetyl-CoA.

Front

How many ATP molecules are produced directly from one turn of the Krebs cycle?

Back

1 ATP (or GTP) per turn.

Front

What are the main products of one turn of the Krebs cycle?

Back

3 NADH, 1 FADH2, and 1 ATP (or GTP).