1. Functions (Jobs) of Organelles (Parts of the Cell) Ms. Ryan/Ms. Nugent

2. Organelles Nucleus Nucleus Nucleus Control center. Control center. maintain life functions of cell maintain life functions of cell (regulation) (regulation) Nucleolus: genetic information: Nucleolus: genetic information: DNA and RNA. DNA and RNA. Ribosomes Ribosomes Ribosomes protein synthesis, where RNA is protein synthesis, where RNA is turned into protein. Hundreds or Thousands Hundreds or Thousands Free floating and on ER Free floating and on ER

3. Endoplasmic Reticulum(ER) Endoplasmic Reticulum(ER) Rough: has ribosomes Rough: has ribosomes Smooth: No ribosomes Smooth: No ribosomes Both for transport Both for transport Mitochondria: Mitochondria: aerobic respiration aerobic respiration energy production energy production two membranes, two membranes, an inner and an outer, own DNA and ribosomes; own DNA and ribosomes;

4. Chloroplasts Chloroplasts Chloroplasts photosynthesis photosynthesis photosynthesis (only plant cells and some bacteria) Golgi apparatus Golgi apparatus Golgi apparatus Golgi apparatus changes molecules and packages changes molecules and packages them into small sacs called vesicles. sacs can be sent anywhere in the sacs can be sent anywhere in the cell: even outside of it. Lysosome Lysosome digests waste materials and food digests waste materials and food Uses strong digestive enzymes. Uses strong digestive enzymes.enzymes

5. Vacuoles Vacuoles Used to store water and other materials Used to store water and other materials Very important (and big) in plant cells Very important (and big) in plant cells Flagella (Like a tail for an animal cell to help locomotion) Flagella (Like a tail for an animal cell to help locomotion) Cytoplasm Cytoplasm Thick liquid inside cell to help things flow and move Thick liquid inside cell to help things flow and move Cell Wall Cell Wall Only in plant cells Only in plant cells Gives rigid structure, helps to protect cell Gives rigid structure, helps to protect cell Cell Membrane Cell Membrane Both plant and animal cells. Allows only Both plant and animal cells. Allows only certain things in and out of the cell (selective permeability) Centriole Centriole Used in animal cell division Used in animal cell division