AQA A Level Biology - Diffusion revision papers 2023 with correct questions and answers.docx

AQA A LEVEL BIOLOGY - RESPIRATION
REVISION PAPER 2023 WITH CORRECT
QUESTIONS AND ANSWERS

What is the purpose of respiration ? (Correct Answers) To release energy from glucose
To produce ATP

What is the general equation for aerobic respiration ? (Correct Answers) 6O2 +
C6H1206 --> 6H2O + 6CO2 + energy

What do plants need energy for ? (name 5) (Correct Answers) 1. Photosynthesis
2. Active transport of minerals via roots
3. DNA replication,
4. Cell division,
5. Protein synthesis

What do animals need energy for ? (name 6) (Correct Answers) 1. Muscle contraction
2. Maintaining a constant body temperature
3. Active transport
4. DNA replication
5. Cell division
6. Protein synthesis

What is the chemical name for ATP? (Correct Answers) Adenosine triphosphate

What are the 3 components of ATP? (Correct Answers) 1 molecule of adenine
1 molecule of ribose
3 molecules of phosphate ions

How is ATP formed? (Correct Answers) Condensation reaction between adenosine
diphosphate (ADP) and inorganic phosphate (Pi)
Catalysed by ATP synthase

Which enzyme catalyses the condensation reaction between ADP and Pi ? (Correct
Answers) ATP synthase

What is phosphorylation ? (Correct Answers) Adding phosphate to a molecule

How does ATP move through the cell ? (Correct Answers) Diffusion