Communities: To survive and reproduce, organisms require a supply of materials from their surroundings and from the other living organisms there.

Q: How do I revise Communities: To survive and reproduce, organisms require a supply of materials from their surroundings and from the other living organisms there. for GCSE?

Read the notes on Communities: To survive and reproduce, organisms require a supply of materials from their surroundings and from the other living organisms there., then test yourself without looking. Answering questions and checking what you missed builds recall faster than re-reading.

Q: Is this Communities: To survive and reproduce, organisms require a supply of materials from their surroundings and from the other living organisms there. guide aligned to the AQA specification?

Yes. This guide is linked to the Communities: To survive and reproduce, organisms require a supply of materials from their surroundings and from the other living organisms there. topic in the AQA GCSE specification.

Every organism must obtain materials to stay alive and to produce offspring.

Study notes

From the checked teaching notes for this specification point.

The idea

What earns the marks

Plants absorb carbon dioxide from the air and water and mineral ions from the soil, using light for photosynthesis.
Animals obtain energy and building materials by eating other organisms, so food chains begin with producers.
Decomposers break down dead organisms and waste, returning mineral ions to the soil for reuse by plants.
Decomposers release carbon into the atmosphere as carbon dioxide during respiration.
Survival depends on a sufficient supply of materials; reproduction requires additional materials and energy for gametes, seeds, or eggs.

Common mistakes and how to put them right

Saying plants take food from the soil.
Put it right by stating that soil supplies water and mineral ions, while food (glucose) is made by photosynthesis.
Stating that decomposers return carbon to the soil.
Put it right by explaining that carbon is released into the atmosphere as carbon dioxide during respiration.
Ignoring decomposers: correct this by naming bacteria and fungi that break down dead material and release mineral ions.

Exam tips

Name the specific material and its source, for example, carbon dioxide from air or mineral ions from soil.
When describing decomposition, clearly distinguish between mineral ions going into the soil and carbon dioxide going into the air.

Try the lesson

The start of the Communities: To survive and reproduce, organisms require a supply of materials from their surroundings and from the other living organisms there. lesson, made from checked teaching notes for this specification point.

Have a go first

Why do organisms, such as a rabbit living in a meadow, require a supply of materials from their surroundings?

Tip: press 1 to 4 to choose

Listen

Every organism must obtain materials to stay alive and to produce offspring. Plants take carbon dioxide from the air and water plus mineral ions from the soil, using light energy to make glucose by photosynthesis. Animals cannot photosynthesise, so they eat other organisms, gaining energy and the atoms needed to build proteins, fats, and DNA. Decomposers such as bacteria and fungi release enzymes onto dead material, absorbing nutrients. Crucially, they release carbon into the atmosphere as carbon dioxide during respiration, while returning mineral ions to the soil. A woodland food web shows this flow: oak leaves, caterpillars, blue tits, and sparrowhawks. If any supply fails, growth, repair, and reproduction are reduced. A strong answer earns marks for these points. Plants absorb carbon dioxide from the air and water and mineral ions from the soil, using light for photosynthesis. Animals obtain energy and building materials by eating other organisms, so food chains begin with producers. Decomposers break down dead organisms and waste, returning mineral ions to the soil for reuse by plants. Decomposers release carbon into the atmosphere as carbon dioxide during respiration. A common slip: Saying plants take food from the soil. Instead, stating that soil supplies water and mineral ions, while food (glucose) is made by photosynthesis. Exam tip: Name the specific material and its source, for example, carbon dioxide from air or mineral ions from soil.

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