Biology Topic Practice

The Carbon Cycle Process

Carbon is the basis of all life, and it is constantly recycled between the atmosphere and living organisms.

Which process is the ONLY one that removes CO2 from the atmosphere?

What is The Carbon Cycle Process?

"The carbon cycle is the series of processes by which carbon compounds are interconverted in the environment."

Question 1

What do decomposers do in an ecosystem?

Question 2

Which process removes carbon dioxide from the atmosphere?

Question 3

Which process adds water vapour to the atmosphere from plant leaves?

Question 4

Which condition would usually speed up decomposition by microorganisms?

Moving Carbon

Photosynthesis: Plants take in CO2 to make glucose.

Respiration: Both plants and animals release CO2 back into the air.

Combustion: Burning fossil fuels or wood releases stored carbon as CO2.

Exam Tip

When organisms die, decomposers break them down and release CO2 through their own respiration.

Want to improve faster?

The fastest way to improve your grade is to practise exam-style questions, identify your gaps, and focus only on what you don't know.

Start practising this topic
Instantly marked • No sign-up

Related GCSE Biology Questions

View all GCSE Biology topics

Verified for 2024/25 Exams

Aligned to current UK Science Specifications

LO

Little & Often Content Team

Science Education Specialists