Biology-Cells


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Cells

PLANT AND ANIMAL CELLS  HAVE SIMULARITIES AND DIFFERANCES:

Animal Cells

  • Nucleus- contains genetic matireal + controls activities of cell.
  • Cytoplasm- gel like substance, where most of the chemical reactions happen. Contains enzymes that control these chemical reactions
  • Cell Membrane- hols the cell together and controls what goes in and out.
  • Mitochondria- where most of reactions for reperation take place. Resperation releases energy that the cells need to work.
  • Ribosomes- these are where proteins are made in the cell.
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Cells

PLANTS CELLS BASCILLY HAVE THE SAME FEATURES AS ANIMAL CELLS BUT HAVE A FEW EXTRAS THAT ANIMALS CELLS DONT:

Plant Cells:

  • Rigid Cell Wall- made of cellulose. It supports the cell and strenghens it.
  • Permanent Vacuole- contains cell sap.
  • Chloroplast- these are where photosynthesis occurs, which makes food for the plant. They contain a green substance called chlorophyll


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Cells

YEAST IN A SINGLE-CELLED ORGANSIM

Yeast is a microorgansim. A yeast cell has a nucleus, cytoplasm and a cell membrane surrounded by a cell wall. 

BACTERIAL CELLS HAVE NO NUCLEUS

Bacteria are also single-celled microorganisms.

  • A bacterial cell has cytoplasm and a cell membrane surrounded by a cell wall.
  • The genetic material floats in the cytoplam because bacterial cells don't have a nucleus.
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