Cells by nyut545e2

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									          Cells
The function of the different
    parts of animal cells
The difference between plant
       and animal cells
             Animal cells
 Nucleus   – contains DNA and controls
  all the activities of the cell. It also
  contains instructions for making new
  cells or organisms
 Cytoplasm – a liquid gel in which
  most of the chemical reactions
  needed for life take place.
 Ribosomes – where protein synthesis
  takes place
            Animal cells
 Cellmembrane – controls the
  passage of substances in and out of
  the cell
 Mitochondria – structures found in
  the cytoplasm where most of the
  energy is released during respiration.
                Plant cells
 Chloroplast

 Cytoplasm

 Ribosomes

 Permanent   vacuole
 Cell membrane

 Cellulose cell wall

 Nucleus
               Plant cells
All plants cells have:
 Cell wall made of cellulose which
  strengthens the cell and gives it support
Many (but not all) plant cells also have:
 Chloroplasts are found in the green part of
  the plants. They contain a green
  substance called chlorophyll which is
  needed to absorb light to make food by
  photosynthesis
 Permanent vacuole which is important for
  keeping the cells rigid to support the plant
              Enzymes
 An enzyme is a biological catalyst. It
 helps speed up chemical reactions
 with out being changed or used up
 itself.

								
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