photosynthesis
part of speech
noun (photosynthesis)
meaning for a pupil
Photosynthesis is the way green plants make their own food using sunlight, water and carbon dioxide from the air, giving out oxygen. tree →
sense in the lessons
In science lessons pupils learn the simple word equation: carbon dioxide + water → (with light, in chlorophyll) → glucose (sugar) + oxygen. It happens mainly in the leaves, in the green chlorophyll. Photosynthesis feeds almost all food chains and gives us the oxygen we breathe. A plant kept in the dark cannot photosynthesise and grows pale and weak. Phrases: plants carry out photosynthesis, needed for photosynthesis.
examples
- Plants make food by photosynthesis. tree →
- Photosynthesis needs sunlight, water and carbon dioxide. tree →
- Leaves are green because of chlorophyll, which traps light for photosynthesis. tree →
- Photosynthesis gives out oxygen. tree →
- A plant in a dark cupboard cannot carry out photosynthesis. tree →
- Almost all food chains start with photosynthesis. tree →
note
Uncountable noun. «Photo» = light, «synthesis» = putting together. Verb: photosynthesise (UK) / photosynthesize (US). Myth: plants get their food from the soil — the soil gives water and minerals, but the plant's food (sugar) is made from air and water using light.
In the corpora
- This is called photosynthesis.
- Leaves use sunlight to turn water and carbon dioxide from the air into sugar for food; this is called photosynthesis.
- Plants make their own food in a process called photosynthesis, which means "putting together with light".
- Photosynthesis is how green plants make their own food.
- Photosynthesis gives out oxygen into the air.
Trees and pragmatics
Every meaning and example of «photosynthesis» parsed by Mova, each sentence with its dependency tree and frames.