Q:

Do plant cells need to respire?

A:

All living organisms respire in some manner. Plants always respire but don't always photosynthesize. This is why plants give out oxygen during the day and carbon dioxide at night.

Plants require energy to maintain the function of their cells, normally obtained through photosynthesis. However, photosynthesis does not do all of the work required with respiration required to convert the necessary minerals into glucose. Photosynthesis occurs in the chloroplasts of plant cells where carbon dioxide (from respiration) and water (drawn through roots) convert energy from the sun and chlorophyll into a substrate of glucose and oxygen. This action proves respiration is necessary for plant cells.

Placing a plant in a room with varying levels of light will prove that while the energy needed to photosynthesize is absent, the act of respiration continues An example of this can be seen in non-evergreen plants shedding their leaves in winter, during which they respire while feeding on glucose deposits stored within.

The act of respiration is not the same as breathing. According to the Merriam-Webster dictionary, respiration is "any of various energy-yielding oxidative reactions in living matter." Plants respire in two manners with photosynthesis yielding oxygen and without photosynthesis yielding carbon dioxide.


Is this answer helpful?

Similar Questions

  • Q:

    What is a fair test in science?

    A:

    A fair test in science is an experiment conducted in a manner so that it does not provide any advantages to any of the conditions or subjects being tested. A fair test in science can also refer to a science test or exam that is administered fairly. A fairly administered test should be accessible to all test takers regardless of their disabilities or other personal characteristics.

    Full Answer >
    Filed Under:
  • Q:

    What are the differences between plant cells and animal cells?

    A:

    The main difference between plant cells and animals cells is that plant cells possess a cell wall and animal cells do not. Animal cells have an irregular shape, and plant cells have a fixed, rectangular shape.

    Full Answer >
    Filed Under:
  • Q:

    What is the difference between plant cells vs. animal cells?

    A:

    Plant cells differ from animal cells in three major ways: their components, their function and the structures they build. Plant cells are typically more rigid than animal cells; they do not move, and they are able to synthesize all the chemical compounds needed by the organism. Animal cells must receive at least some of their nutrients from an outside source.

    Full Answer >
    Filed Under:
  • Q:

    Do plant cells have lysosomes?

    A:

    Plant cells do not contain lysosomes. Lysosomes are present in the cells of animals, and they are responsible for breaking down waste and other cell debris.

    Full Answer >
    Filed Under:

Explore