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.

Photosynthesis is the conversion of carbon dioxide and water into carbohydrates using energy from sunlight. It is the main process by which new energy becomes available to life on Earth. Plants and algae use photosynthesis to convert light energy into a form available to other organisms, and thus form the base of almost every food chain. Animal materials and foods can also be traced back to this source of energy and materials.

Beyond the immediate energy and materials that photosynthesis provides, it is also the source of the energy stored in fossil fuels, which come from the decomposition of buried organisms without oxygen. These decayed remains are subjected to geological processes, such as heat and pressure, for millions of years to become coal, oil and natural gas. These together make up over 85 percent of humans' energy use. Photosynthesis is also an important factor in reducing the damage many scientists worry about due to carbon dioxide levels.

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Related Questions

  • 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:

    Is photosynthesis catabolic or anabolic?

    A:

    Photosynthesis is an anabolic process. This is because in anabolism, complex molecules like proteins are created and synthesized from smaller, less complex molecules, such as amino acids.

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  • 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:

    What is the process of photosynthesis?

    A:

    Photosynthesis is the process by which plants turn light energy into chemical energy. Plants also need carbon dioxide and water along with the light to complete the process.

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