Carbon cycle (Edexcel GCSE Biology Combined Science): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
Which biological molecules contain carbon as a key element?
Which biological molecules contain carbon as a key element?
Proteins, carbohydrates, and fats
What does photosynthesis convert carbon dioxide into?
What does photosynthesis convert carbon dioxide into?
Glucose
Which organisms return carbon dioxide to the atmosphere through respiration?
Which organisms return carbon dioxide to the atmosphere through respiration?
All living organisms
What does combustion of fossil fuels release into the atmosphere?
What does combustion of fossil fuels release into the atmosphere?
Carbon dioxide
How does carbon pass from plants to animals?
How does carbon pass from plants to animals?
Through feeding
Which microorganisms act as decomposers in the carbon cycle?
Which microorganisms act as decomposers in the carbon cycle?
Bacteria and fungi
Under what conditions can dead organic matter become fossilised?
Under what conditions can dead organic matter become fossilised?
Lack of oxygen or cold environments
What happens to glucose during respiration?
What happens to glucose during respiration?
Broken down with oxygen to release energy
What carbohydrate makes up plant cell walls?
What carbohydrate makes up plant cell walls?
Cellulose
How long does fossilisation of organic matter take to form fossil fuels?
How long does fossilisation of organic matter take to form fossil fuels?
Millions of years