AQA A Level Biology – Respiration questions and solutions

AQA A Level Biology – Respiration questions and
solutions

What is the purpose of respiration ? - answersTo release energy from glucose
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To produce ATP wu wu




What is the general equation for aerobic respiration ? - answers6O2 + C6H1206 --> 6H2O + 6CO2 + energy
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What do plants need energy for ? (name 5) - answers1. Photosynthesis
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2. Active transport of minerals via roots
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3. DNA replication,
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4. Cell division,
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5. Protein synthesis
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What do animals need energy for ? (name 6) - answers1. Muscle contraction
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2. Maintaining a constant body temperature
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3. Active transport
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4. DNA replication
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5. Cell division
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6. Protein synthesis
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What is the chemical name for ATP? - answersAdenosine triphosphate
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What are the 3 components of ATP? - answers1 molecule of adenine
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1 molecule of ribose
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3 molecules of phosphate ions
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How is ATP formed? - answersCondensation reaction between adenosine diphosphate (ADP) and inorganic
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phosphate (Pi)
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Catalysed by ATP synthase wu wu wu




Which enzyme catalyses the condensation reaction between ADP and Pi ? - answersATP synthase
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What is phosphorylation ? - answersAdding phosphate to a molecule
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How does ATP move through the cell ? - answersDiffusion
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Which enzyme catalyses the hydrolysis of ATP ? - answersATP hydrolase
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What are the 6 properties of ATP ? - answers1. Stores and releases small amount of energy so none wasted as
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heat
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2. Small, soluble molecule so easily transported
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3. Easily hydrolysed so energy releases instantly
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4. Quickly resynthesised
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