Q:

How does respiration occur in plants?

A:

Respiration, in which energy is released from carbohydrates for metabolic needs, takes place in plants through a process which can be expressed in a word equation as: glucose + oxygen = energy + carbon dioxide + water. The chemical equation for this process can be expressed as: C6H12O6 + 6O2 = energy + 6CO2 + 6H2O. Respiration, which is a breaking-down process that releases energy, can be viewed as the opposite of photosynthesis, which is a building-up process that takes in energy in the form of light and uses it to produce carbohydrates.

Know More

Full Answer

The process by which plants respire, or release energy from carbohydrates, is similar to the process that occurs in oxygen-breathing animals. Respiration in both animals and plants is also similar to oxidation, in which heat is released by burning a fuel such as wood. Although plants require carbon dioxide to produce carbohydrates through photosynthesis, they also use oxygen to perform respiration.

When oxygen is unavailable or limited, plants can release energy from stored carbohydrates through anaerobic respiration, which takes place through fermentation in plants. In its scientific sense, fermentation refers to a metabolic process that is capable of releasing energy from an organic molecule and does not require oxygen. Instead of creating the byproducts of carbon dioxide and water, the release of energy through fermentation creates the byproducts of lactic acid or ethyl alcohol, along with carbon dioxide.

Learn more in Botany

Related Questions

  • Q:

    Why do we need plants?

    A:

    Plants are necessary because they are a primary food source and provide the oxygen that is vital to animals' and humans' existence. A majority of the calories that people consume comes from plants, and most meat comes from animals that eat plants. Plants are at the bottom of the food chain, and animals could not survive without them. Plants also release the oxygen that humans and animals breathe.

    Full Answer >
    Filed Under:
  • Q:

    Why is glucose important to plants?

    A:

    Glucose is important to plants because it is a source of energy that can be converted into other components like starch or cellulose; these components are necessary for cell structures such as the cell walls and for the plant's development. Glucose is also necessary for respiration in plants.

    Full Answer >
    Filed Under:
  • Q:

    What do plants give us?

    A:

    Plants provide several benefits to humans, including the filtration of carbon dioxide into oxygen and increasing the humidity of the environment. Plants also improve the mood and health of people who spend time near them.

    Full Answer >
    Filed Under:
  • Q:

    What are some everyday uses of plants?

    A:

    Plants and plant-derived materials provide humans with everything from oxygen, food and medicinally active chemical compounds to building materials, rope and paper pulp. Plants are also used to beautify both indoor and outdoor spaces.

    Full Answer >
    Filed Under:

Explore