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Cell Structures, Functions and Transport Figure 7-5 Plant and Animal Cells Animal Cell Section 7-2 Cytoplasm Nucleolus Nucleus Nuclear Membrane Go to Section: Cell Membrane Eukaryotic Cell Organelles and Function Nucleus 1. Nickname: “The Control Center” Function: holds DNA in the form of chromosomes Parts: 1. 2. Nucleolus: dark spot in the middle that helps make ribosomes Nuclear membrane: boundary around the nucleus (contains pores for movement out of the nucleus) Figure 7-5 Plant and Animal Cells Animal Cell Section 7-2 Cytoplasm Nucleolus Nucleus Go to Section: Ribosomes Cell Membrane Eukaryotic Cell Organelles and Function Ribosomes 2. Function: site of protein synthesis (amino acids are assembled into proteins) Found in both prokaryotic and eukaryotic Eukaryotic Cell Organelles and Function Endoplasmic Reticulum (ER) 3. Nickname: “Subway” Function: The internal delivery system of the cell Figure 7-5 Plant and Animal Cells Animal Cell Section 7-2 Cytoplasm Nucleolus Nucleus Rough Endoplasmic Reticulum Go to Section: Ribosomes Cell Membrane Smooth Endoplasmic Reticulum Endoplasmic Reticulum 2 Types: 1. Rough ER: 2. Rough appearance because it has ribosomes Function: modify and transport proteins – (remember, ribosomes are where proteins are made) Smooth ER: NO ribosomes Function: makes fats or lipids Figure 7-5 Plant and Animal Cells Animal Cell Section 7-2 Cytoplasm Nucleolus Nucleus Rough Endoplasmic Reticulum Golgi Complex Go to Section: Ribosomes Cell Membrane Smooth Endoplasmic Reticulum Eukaryotic Cell Organelles and Function Golgi Apparatus or Body 4. Nickname: “UPS of the Cell” Function: collects, packages, and transports materials to different locations inside/outside of the cell Appearance: stack of pancakes with syrup drops around it Figure 7-5 Plant and Animal Cells Animal Cell Section 7-2 Cytoplasm Nucleolus Nucleus Rough Endoplasmic Reticulum Golgi Bodies Go to Section: Ribosomes Cell Membrane Smooth Endoplasmic Reticulum Eukaryotic Cell Organelles and Function Lysosomes: circular, but bigger than ribosomes) 5. Nickname: “Clean-up Crews” Function: to break down food into particles the rest of the cell can use, and to destroy worn out cell organelles and other debris Figure 7-5 Plant and Animal Cells Animal Cell Section 7-2 Cytoplasm Nucleolus Nucleus Ribosomes Cell Membrane Mitochondria Rough Endoplasmic Reticulum Golgi Bodies Smooth Endoplasmic Reticulum Eukaryotic Cell Organelles and Function Mitochondria (Mighty Mac) 6. Nickname: “The Powerhouse” Function: Energy formation Breaks down food to make ATP (cellular respiration - glycolysis) ATP: is the major fuel for all cell activities that require energy ATP = ENERGY Animal Cell Cytoplasm Nucleolus Nucleus Ribosomes Cell Membrane Mitochondria Rough Endoplasmic Reticulum Golgi Bodies Smooth Endoplasmic Reticulum Now let’s talk about structures only found in PLANT Cells!! Figure 7-5 Plant and Animal Cells Section 7-2 Plant Cell Vacuole Cell Membrane Go to Section: Eukaryotic Cell Organelles and Function Vacuoles 7. Function: stores water, enzymes, wastes, etc. Is much larger than animal cell vacuoles This is what makes lettuce crisp Figure 7-5 Plant and Animal Cells Plant Cell Section 7-2 Vacuole Chloroplasts Cell Membrane Go to Section: Eukaryotic Cell Organelles and Function Chloroplasts 8. Function: traps energy from the sun to produce food for the plant cell (photosynthesis) Green in color because of chlorophyll, which is a green pigment Chloroplasts Figure 7-5 Plant and Animal Cells Plant Cell Section 7-2 Vacuole Chloroplasts Cell Membrane Cell Wall Go to Section: Eukaryotic Cell Organelles and Function Cell Wall 9. Function: provides support and protection to the cell membrane Found outside the cell membrane in plant cells ONLY Plant Cell Cytoplasm Vacuole Smooth ER Free Ribosomes Chloroplasts Cell Membrane Cell Wall Nuclear Envelope Nucleolus Golgi Bodies Nucleus Mitochondria Rough ER Comparing Plant and Animal Cells Plant Animal