10.1 Cellular Respiration and Energy Practice Questions

What is a calorie?

• The amount of energy needed to raise the temperature of 1 gram of water 1 degree Celsius

• The amount of energy needed to raise the temperature of 1 kilogram of water 1 degree Celsius

• The amount of energy needed to raise the temperature of 1 gram of food 1 degree Celsius

• The amount of energy needed to raise the temperature of 1 kilogram of food 1 degree Celsius

What is the Calorie used on food labels?

• A kilocalorie, or 1000 calories

• A milligram of energy

• A megacalorie, or 1 million calories

• A microcalorie, or 1/1000 of a calorie

How do cells obtain energy from food?

• By burning food and releasing energy as heat

• By breaking down food molecules gradually and capturing chemical energy

• By converting food into ATP directly

• By storing food molecules in the cell membrane

What is the main purpose of cellular respiration?

• To release energy as heat

• To break down glucose into carbon dioxide and water

• To synthesize compounds such as ATP

• To capture energy from food molecules

What are the three main stages of cellular respiration?

• Glycolysis, Krebs cycle, Electron transport chain

• Photosynthesis, Fermentation, Oxidative phosphorylation

• Glycolysis, Fermentation, Electron transport chain

• Krebs cycle, Oxidative phosphorylation, Photosynthesis

Which stage of cellular respiration captures the most energy?

• Glycolysis

• Krebs cycle

• Electron transport chain

• Fermentation

What is the role of oxygen in cellular respiration?

• To provide energy to the cell

• To convert glucose into ATP

• To accept electrons in the electron transport chain

• To break down pyruvic acid

What is the end product of glycolysis?

• Pyruvic acid

• Glucose

• ATP

• Carbon dioxide

What is the main purpose of the Krebs cycle in cellular respiration?

• To produce ATP

• To produce glucose

• To break down pyruvic acid

• To convert ADP into ATP