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Nucleus Definition

The nucleus is an organelle containing DNA, the genetic material of the cell. For example, it stores genetic information necessary for reproduction.

View Lesson on Plant & Animal Cells
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Plant & Animal Cells

Fun Facts

  • Both plant cells and animal cells have a nucleus.
  • Depending on the power, you would most likely be able to see the nucleus of each cell under a microscope.
  • DNA in the nucleus holds instructions for making a whole new organism.

Why Do We Need To Know About Nucleus

Learning about the nucleus helps us figure out how to diagnose diseases and find cures. The nucleus contains DNA, which is vital for cells to work and make more cells, and is key to life. This knowledge helps in medical research, leading to better treatments and insights into genetic diseases.

Jobs like pathologists and molecular biologists need to understand the nucleus to spot diseases, create treatments, and even make lab-grown meat. Their work shows how crucial the nucleus is in health science, helping to solve medical problems today and make scientific discoveries for the future.

Frequently Asked Questions

What is the difference between a unicellular organism and a multicellular organism?
Single celled organisms are made up of only one cell. An amoeba is an example of a unicellular organism. Multicellular organisms are made up of more than one cell. People, dogs and plants are all examples of multicellular organisms.
Why is the mitochondria of a cell important?
The mitochondria is where sugar is converted into energy. The cell needs energy in order to carry out its everyday functions.
What function does a cell wall serve for a plant?
The cell wall gives a plant cell support and structure allowing the plant to stand upright. This is important so that the plant can get sunlight in order to do photosynthesis.
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