Respiration Basics

What is the primary purpose of cellular respiration?

• To synthesize carbohydrates

• To generate ATP

• To regulate body temperature

• To produce oxygen

Name the three main stages of cellular respiration.

• Krebs Cycle

• Fermentation

• Photosynthesis

• Glycolysis, Citric Acid Cycle, Oxidative Phosphorylation

Which organelle is responsible for the majority of ATP production in cellular respiration?

• Nucleus

• Endoplasmic reticulum

• Golgi apparatus

• Mitochondria

What are the reactants of cellular respiration?

• Glucose and oxygen

• Starch and lipids

• ATP and NADH

• Water and carbon dioxide

What are the products of glycolysis?

• 2 ATP, 2 NADH, 2 Pyruvate

• 1 ATP, 3 NADH, 2 Pyruvate

• 3 ATP, 1 NADH, 3 Pyruvate

• 4 ATP, 2 NADH, 1 Pyruvate

Where does the Krebs cycle take place in eukaryotic cells?

• nucleus

• mitochondria

• endoplasmic reticulum

• cytoplasm

What is the final electron acceptor in the electron transport chain?

• Oxygen

• Nitrogen

• Hydrogen peroxide

• Carbon dioxide

How many ATP molecules are produced from one molecule of glucose during cellular respiration?

• 30-32 ATP molecules

• 25-28 ATP molecules

• 40-42 ATP molecules

• 36-38 ATP molecules

What is the role of oxygen in cellular respiration?

• Oxygen acts as the final electron acceptor in cellular respiration.

• Oxygen is used to produce carbon dioxide in cellular respiration.

• Oxygen is only needed in photosynthesis, not cellular respiration.

• Oxygen is responsible for breaking down glucose in cellular respiration.

Explain the difference between aerobic and anaerobic respiration.

• Aerobic respiration occurs in plants, anaerobic respiration occurs in animals.

• Aerobic respiration produces more ATP than anaerobic respiration.

• Aerobic respiration requires oxygen, anaerobic respiration does not.

• Aerobic respiration is faster than anaerobic respiration.