Cellular Respiration

Which of the following types of organisms use cellular respiration for their cellular energy needs?

• Eukaryotes

• Plants only

• Animals only

• Prokaryotes

Which process breaks down sugars to make ATP when oxygen is present?

• Anaerobic respirations

• Cellular Respiration

• Glycolysis

• Photosynthesis

The parts of cellular respiration in which glucose is broken down is called...

• Photosynthesis

• Aerobic respiration

• Electron transport chain

• Glycolysis

Two products of the Krebs cycle are...

• H₂O and CO₂

• ATP and CO₂

• ATP and O₂

• ADP and H₂O

What provides the electron transport chain in cellular respiration with the energy it needs to function?

• ATP synthase

• Glycolysis

• Chlorophyll

• Krebs Cycle

Which of the following statements best describes cellular respiration?

• Sunlight and carbon dioxide are used to make ATP

• ATP and oxygen are used to make sugars and starches

• Carbon-based molecules from food and oxygen are used to make ATP

• ATP and carbon dioxide are used to make ADP and water

Which of the following are end products of glycolysis?

• Two 3-carbon molecules, ATP, and NAD+

• carbon dioxide, water, and ATP

• NAD+, oxygen, and two ATP molecules

• Pyruvate, NADH, and ATP

What is the main function of the Krebs cycle?

• breaking down pyruvate molecules to form molecules of NADH and oxygen

• Forming citric acid to make NADH, water, and CO₂

• Producing molecules that carry high-energy electrons to the electron transport chain

• Bonding coenzyme A to pyruvate

In the electron transport chain, energy from the Krebs cycle is used to pump hydrogen ions...

• Across the inner mitochondrial membrane

• Through the ATP synthase enzyme in the mitochondrial matrix

• Along a concentration gradient in the thylakoid

• Along the thylakoid memrane

What is the function of oxygen in cellular respiration?

• To deliver hydrogen ions to the electron transport chain

• To pick up electrons at the end of the electron transport chain

• To provide oxygen for the production of carbon dioxide

• To give a source of energy to the Krebs cycle