Cell parts and its functions

• Cell Surface Membrane 


  -Controls a selected category of substances entering or leaving the cell

  -Keeps cell content in place
• Cytoplasm


  -Site within the cell in which most cell activities occur
• Nucleus


  -Involved in cell division

  -Controls cell activities such as growth and repair of worn out parts
• Ribosomes


  -Synthesizes proteins (by scaning genetic material)
• Mitochondrion


  -Conducts aerobic respiration to release energy from sugar, to be used in growth and repair
• Cell Wall


  Protects cell from injury

  -Gives cells structure and support
• Chloroplast


  -Chlorophyll traps light

  -Photosynthesis occurs to make glucose and oxygen
• The cell surface membrane has a thin partially permeable membrane that surrounds the protoplasm
• The cytoplasm is the protoplasm between the cell surface membrane and the nucleus
• The cytoplasm contains dissolved amino acids, enzymes, and suspends organelles
• The Nucleus has a small spherical structure surrounded by a nuclear envelope
• The nucleus contains genetic material in the form of a chromatin
• The ribosomes have a small round structure that are either attached to RER or lie freely in the cytoplasm
• The mitochondrion has a sausage-shaped organelle and has a double membrane with the inner membrane highly folded
• The cell wall is a rigid wall made of cellulose and is fully permeable
• The chloroplasts have oval structures and contains green pigment called chlorophyll