AP Biology Cellular Respiration

Front

What is glycolysis and where does it occur in the cell?

Back

Glycolysis is the process of breaking down glucose into pyruvate, producing a small amount of ATP. It occurs in the cytoplasm of the cell.

Front

What is the primary function of mitochondria in cellular respiration?

Back

Mitochondria are the organelles where aerobic cellular respiration occurs, producing ATP through the Krebs cycle and oxidative phosphorylation.

Front

Define aerobic respiration and its requirements.

Back

Aerobic respiration is a type of cellular respiration that requires oxygen to produce ATP from glucose.

Front

What is ATP and why is it important for cells?

Back

ATP (adenosine triphosphate) is the energy currency of the cell, providing energy for various cellular processes.

Front

Write the equation for aerobic cellular respiration.

Back

C6H12O6 + 6O2 → 6CO2 + 6H2O + ATP.

Front

What are the end products of glycolysis?

Back

The end products of glycolysis are 2 pyruvate molecules, 2 ATP, and 2 NADH.

Front

What role does oxygen play in aerobic respiration?

Back

Oxygen acts as the final electron acceptor in the electron transport chain, allowing for the production of ATP.

Front

What is the Krebs cycle and where does it take place?

Back

The Krebs cycle, also known as the citric acid cycle, is a series of chemical reactions used by all aerobic organisms to generate energy. It takes place in the mitochondria.

Front

How many ATP molecules are produced during glycolysis?

Back

Glycolysis produces a net gain of 2 ATP molecules.

Front

What is the significance of NADH in cellular respiration?

Back

NADH is an electron carrier that transports electrons to the electron transport chain, where they are used to produce ATP.