Q:

Does photosynthesis occur at night?

A:

Quick Answer

Photosynthesis does not occur during the night. For photosynthesis to take place, water, carbon dioxide and sunlight are necessary, the last of which is missing.

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Full Answer

Photosynthesis is the process by which green plants manufacture their own nutrition in their green leaves. The cells of their green leaves contain cell organelles called chloroplasts. These chloroplasts contain a green coloring pigment called chlorophyll. Chlorophyll converts sunlight into chemical energy in the form of simple sugars such as glucose, which serves as food for the cells. Green plants are called autotrophs, as they produce their own food; this process forms the basis for life on earth. Oxygen is released into the atmosphere as a by-product of photosynthesis.

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Related Questions

  • Q:

    What is photosynthesis?

    A:

    Photosynthesis is the process by which green plants manufacture their own food. The process takes place in small structures within the plant’s cells called chloroplasts. Photosynthesis evolved about 3 billion years ago, yet it remains the most important method for harvesting the sun’s energy on the planet.

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  • Q:

    Why do we need photosynthesis?

    A:

    Photosynthesis is necessary because it forms the basis of the food chain. Photosynthesis, which occurs in green plants and algae, is the process by which sunlight combines with carbon dioxide, water and a chemical called chlorophyll to produce simple sugars. These sugars provide the plants with an energy source, and, when they are eaten by a predator, these sugars provide energy for the animal.

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  • Q:

    Why is photosynthesis important?

    A:

    Photosynthesis is the ultimate source of the energy for all the food that humans require, as well as the source of the energy used to build the biological materials that humans use, such as wood, cotton and wool. It is also the major source of oxygen gas that all animals require.

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  • Q:

    Is photosynthesis endergonic or exergonic?

    A:

    Photosynthesis is an endergonic reaction. An endergonic reaction requires or absorbs energy from its surroundings, while an exergonic reaction releases energy. Most reactions that create or synthesize compounds are endergonic.

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