Biology Revision

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  • B4- The Process of Life.
    • Plant cells
      • Cell wall
        • Made of CELLULOSE to STRENGTHEN the cell.
      • A permanent VACUOLE
        • Untitled
        • Helps support the cell
      • CHLOROPLASTS
        • Contains a GREEN PIGMENT called CHLOROPHYLL which absobs light energy and some ENZYMES needed for PHOTOSYNETHESIS.
    • Microbial cells
      • Circular DNA
        • The DNA floats freely in the CYTOPLASM
      • Cell wall
        • Gives the Bacteria STRENGH
      • Cytoplasm
        • Where PROTEINS, including ENZYMES used in AEROBIC and ANAEROBIC RESPIRATION are made.
      • Cell Membrane
        • Allows GASES and WATER to ENTER and LEAVE the cell freely while acting as a BARRIER to other, LARGER chemicals.
    • Cell Strcuture of YEAST
      • Nucleus
        • Contains the DNA that carried the GENETIC CODE for making ENZYMES needed in RESPIRATION
      • Cytoplasm
        • Where PROTEINS Including ENZYMES are used in ANAEROBIC RESPIRATION ARE MADE.
      • MITOCHONDRIA
        • Where AEROBIC RESPIRATION ocurrs.
      • Untitled

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