CR Lesson Quiz

What is cellular respiration?

• A process that stores energy in food in the absence of oxygen.

• A process that releases energy from food in the presence of oxygen.

• A process that eliminates waste products from the body.

• A process that converts oxygen into carbon dioxide.

What is the chemical summary of cellular respiration?

• Oxygen + Carbon Dioxide → Glucose + Water + Energy

• Oxygen + Glucose → Carbon Dioxide + Water + Energy

• Carbon Dioxide + Water → Oxygen + Glucose + Energy

• Glucose + Water → Oxygen + Carbon Dioxide + Energy

What is the first stage of Cellular Respiration?

• Krebs cycle

• Electron transport

• Glycolysis

• Photosynthesis

During which stage of Cellular Respiration is carbon dioxide produced?

• Glycolysis

• Krebs cycle

• Electron transport

• Fermentation

Which molecule is broken down during the process of Glycolysis?

• Protein

• Fatty acid

• Glucose

• ATP

What is the net gain of ATP molecules during Glycolysis?

• 2 ATP

• 4 ATP

• 6 ATP

• 8 ATP

What is the net gain of ATP molecules during Glycolysis?

• 2 ATP

• 4 ATP

• 6 ATP

• 8 ATP

Where does glycolysis occur in the cell?

• Mitochondria

• Nucleus

• Cytoplasm

• Endoplasmic reticulum

What is released when pyruvic acid is broken down in the Krebs Cycle?

• Oxygen

• Glucose

• CO2 and ATP

• H2O

How many molecules of NADH are produced by each pyruvic acid that enters the mitochondria?

• 2 NADH

• 4 NADH

• 1 NADH

• 3 NADH