The Importance of Respiration (OCR A-Level Biology A): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
How does respiration differ from breathing?
How does respiration differ from breathing?
Respiration is biochemical; breathing is gas
Approximately when did photosynthesis evolve on Earth?
Approximately when did photosynthesis evolve on Earth?
3.8 billion years ago
What do hydrogen-oxidising bacteria use to break down hydrogen gas?
What do hydrogen-oxidising bacteria use to break down hydrogen gas?
Hydrogenase enzymes
When do plants respire?
When do plants respire?
Continuously, both day and night
Which of these are heterotrophic organisms?
Which of these are heterotrophic organisms?
Animals, fungi, and many bacteria
What three components make up ATP?
What three components make up ATP?
Adenine, ribose, three phosphate groups
How much energy is released per mole when ATP is hydrolysed?
How much energy is released per mole when ATP is hydrolysed?
30.5 kJ
Why is ATP's small energy release beneficial?
Why is ATP's small energy release beneficial?
Minimal wastage & no cellular damage
What is the key difference between NAD and FAD?
What is the key difference between NAD and FAD?
NAD is mobile; FAD is fixed to membranes
What does coenzyme A carry?
What does coenzyme A carry?
Acetyl groups (two-carbon fragments)