What are the four things needed for photosynthesis?
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Q:

What are the four things needed for photosynthesis?

A:

Quick Answer

Photosynthesis can only occur when a plant has access to water, carbon dioxide, sunlight and chlorophyll. Plant cells naturally produce chlorophyll, and they draw carbon dioxide directly from the air. Water and sunlight must be acquired from external sources.

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Full Answer

Plants take up carbon dioxide through apertures in their leaves called stomata. These dilate and constrict in response to ambient carbon in the air. They absorb water through their root systems. Sunlight is taken up by the leaves themselves, which are densely packed with chlorophyll-rich organelles called chloroplasts. These chloroplasts use the energy from sunlight to recombine the CO2 with the H2O to produce sugar and O2, which is molecular oxygen that is secreted through the stomata.

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Related Questions

  • Q:

    What is made during photosynthesis?

    A:

    During photosynthesis, plants make glucose and oxygen from carbon dioxide and water. To do this, they need energy in the form of light from the sun. While plants use glucose as energy, oxygen enters the atmosphere for use by other organisms.

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  • Q:

    What happens during photosynthesis?

    A:

    During photosynthesis, chlorophyll absorb light energy that is used to convert carbon dioxide from the air and water from the soil into glucose. Oxygen is released as a by-product. Some glucose is used for respiration, while some is converted into insoluble starch.

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  • Q:

    When does photosynthesis occur?

    A:

    Photosynthesis, the process by which plants convert the sun's energy to glucose, takes place during daylight hours when the plant's leaves are exposed to sunlight. This process only occurs in green plants and in some protist species. Carbon dioxide and water must also be present in order for photosynthesis to occur.

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  • Q:

    What are the raw materials used in photosynthesis?

    A:

    The raw materials that are used in photosynthesis are carbon dioxide and water. These raw materials, combined with energy from sunlight, are used to produce usable energy in the form of glucose, along with a waste product of oxygen.

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