AO1 WJEC ATP and Cellular Energy Quiz

What are the component parts of an ATP molecule?

• Ribose, phosphate, glucose

• Deoxyribose, three phosphates, adenine

• Ribose sugar, adenine base, three phosphate groups

• Ribose sugar, thymine base, two phosphate groups

Which equation correctly illustrates the relationship between ADP, Pi, and ATP?

• ADP + Pi → ATP + H₂O

• ATP → ADP + Pi

• ADP + glucose → ATP

• ATP + H₂O → ADP + Pi

Why is ATP called the universal energy currency?

• It stores DNA

• It is the only energy molecule found in plants

• It provides energy for all cellular processes across all life forms

• It contains oxygen

Which of the following are advantages of using ATP in cells?

• Stores large amounts of energy for long-term use

• Releases energy in small, manageable amounts

• Easily regenerated and soluble

• B and C only

Where does the energy to manufacture ATP come from?

• Water absorption

• Light in photosynthesis and energy from respiration

• Muscle movement

• DNA replication

Which of the following are processes that use ATP?

• Active transport, DNA replication, muscle contraction

• Diffusion, osmosis, blinking

• Protein synthesis, fermentation, passive transport

• Digestion, inhalation, blood flow

What is the name of the enzyme that synthesises ATP?

• ATPase

• ATP synthetase

• ATP synthase

• Adenylate cyclase

What provides the energy for ATP synthase to manufacture ATP?

• Oxygen gas

• The proton (H⁺) gradient across membranes

• Glucose breakdown only

• High-energy electrons from DNA

How is the proton gradient generated in chloroplasts and mitochondria?

• By water intake

• By photosystems and electron transport chains

• Through glycolysis

• By pumping oxygen across membranes

What is a difference between the proton gradient generation in chloroplasts vs. mitochondria?

• Chloroplasts use oxygen, mitochondria don’t

• Chloroplasts use light energy, mitochondria use chemical energy

• Both occur only in animals

• Only chloroplasts use ATP synthase