Bioenergetics Exam Review

What is the primary role of ATP in cellular processes?

• Long-term energy storage
• Energy currency for immediate use in cells
• Breaking down glucose molecules

During photosynthesis, where do the light-dependent reactions occur?

• Cell membrane
• Stroma
• Thylakoid membrane

Which of the following best describes an autotroph?

• An organism that consumes other organisms for energy
• An organism that produces its own food through photosynthesis
• An organism that breaks down dead matter

What percentage of energy is typically transferred from one trophic level to the next in an energy pyramid?

• 1%
• 50%
• 10%

Which equation correctly represents photosynthesis?

• C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O
• 6CO₂ + 6H₂O + Light → C₆H₁₂O₆ + 6O₂
• 6O₂ + C₆H₁₂O₆ → 6CO₂ + 6H₂O

How does ATP become ADP?

• By adding a phosphate group
• By removing a phosphate group
• By adding glucose

What group of organisms is essential for breaking down dead material and recycling nutrients in an ecosystem?

• Consumers

• Decomposers

• Carnivores

Where does the Calvin Cycle take place in the chloroplast?

• Thylakoid membrane
• Stroma
• Outer membrane

What is produced during the light-dependent reactions of photosynthesis?

• Glucose only
• ATP, NADPH, and O₂
• CO₂ and H₂O

What is the primary difference between ATP and glucose in terms of energy storage?

• ATP is for long-term storage, glucose for immediate use
• Glucose is for long-term storage, ATP for immediate use
• They store the same amount of energy