The biological process of how plants produce food and energy
The process shows how plants create food.
Summarise the information by selecting and reporting the main features, and make comparisons where relevant. Write at least 150 words.
- 1.Absorption of sunlight, carbon dioxide, water, and minerals by the plant
- 2.Conversion of these inputs into oxygen and sugar
- 3.Transformation of sugar into starch for plant growth and repair
Chart redrawn by BandLadder from the data in the original IELTS practice task. Many IELTS practice tasks come from the Cambridge IELTS series (Cambridge University Press & Assessment); all rights in the original tasks remain with their owners.
Band 8 sample answer
The provided diagram illustrates the biological process through which plants generate food, highlighting the necessary environmental inputs and the resulting products. Overall, the process involves the intake of four primary elements from the environment, which are then converted into two main outputs, with the sugar produced subsequently being transformed into starch to support the plant's life cycle.
To initiate the process, plants absorb sunlight, carbon dioxide, water, and minerals. Sunlight and carbon dioxide are taken in by the aerial parts of the plant, while water and minerals are absorbed through the root system. These components serve as the fundamental building blocks for the plant's metabolic activities.
Once these inputs are processed, the plant releases oxygen as a byproduct. Simultaneously, the plant produces sugar, which acts as a primary energy source. This sugar does not remain in its initial form; instead, it is converted into starch. This starch is then utilised by the plant for essential biological functions, specifically for growth and the repair of damaged tissues. This cycle demonstrates a highly efficient system of energy conversion, allowing plants to sustain themselves and thrive within their environment.
186 words. Every figure in the answer comes from the chart above.
How to write about process diagrams
- Say how many stages there are and where the process starts and ends.
- Use the passive and sequencers: first, after this, once, finally.
- Keep every stage; a missing step costs task achievement.
- illustrates
- shows or makes clear by using a picture
- subsequent
- coming after something in time or order
- initiate
- to cause a process or action to begin
- byproduct
- an incidental or secondary product made during manufacturing
- utilised
- made practical and effective use of something
- fundamental
- forming a necessary base or core of something
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Frequently asked questions
What should the overview say?
The diagram illustrates the essential inputs required for photosynthesis and the subsequent outputs produced by plants to facilitate their growth and development.
How long should an IELTS Task 1 answer be?
At least 150 words; 170 to 200 is the safe range. Spend about 20 minutes on it and leave 40 for Task 2, which carries twice the marks.
How do I describe process diagrams?
Say how many stages there are and where the process starts and ends. Use the passive and sequencers: first, after this, once, finally. Keep every stage; a missing step costs task achievement.
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