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Can photosynthesis happen without carbon dioxide?
The air contains 0.04% carbon dioxide. Scientists can use sodium hydroxide to absorb carbon dioxide from the air so that it is unavailable for the plants to use in photosynthesis. The leaves will show that no starch has been made as no photosynthesis occurred without carbon dioxide.
Why carbon dioxide is needed for photosynthesis?
During the process of photosynthesis, cells use carbon dioxide and energy from the Sun to make sugar molecules and oxygen. These sugar molecules are the basis for more complex molecules made by the photosynthetic cell, such as glucose.
Is carbon dioxide necessary for plants?
Carbon dioxide plays an important part in vital plant and animal process, such as photosynthesis and respiration. Green plants convert carbon dioxide and water into food compounds, such as glucose, and oxygen. This process is called photosynthesis.
How is co2 necessary for photosynthesis?
Experiment to prove the necessity of carbon dioxide in photosynthesis
- Insert a part of the leaf of a destarched plant into a conical flask containing potassium hydroxide.
- Potassium hydroxide solution absorbs the carbon dioxide gas from the air present in the glass bottle.
- Leave the plant sunlight.
Do plants require carbon dioxide?
The logic is straightforward: Plants need atmospheric carbon dioxide to produce food, and by emitting more CO2 into the air, our cars and factories create new sources of plant nutrition that will cause some crops and trees to grow bigger and faster.
What happens to plants without carbon dioxide?
Carbon dioxide—CO2—is an essential part of the cycle of life. Without a source of CO2, plants will die off, and without plant life the earth’s biological food chain would be terminally broken. The carbon found in biomass is taken out of the atmosphere through the process of photosynthesis which causes the plant grow.