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Transcript
Why are cells important? They help us do what we do Breakdown food Move Grow Reproduce Cells have jobs Some help move things around the organism Some fight disease Bacteria Smallest organisms on Earth Made of only one cell Larger Organisms Made of many cells What are cells made of? A cell is like a bakery Many parts doing different jobs Organelles Each does a different job In the bakery: The workers Cell membrane Holds cell together Is a boundary Plants also have cell wall for support and protection In bakery: The walls Cytoplasm Like Jello/Where activities take place In Bakery: The kitchen • Nucleus Vacuoles Contains chromosomes (plan for cell) In Bakery: the manager stores food, waste In bakery: pantry, trash can Mitochondria Where cellular respiration happens Food energy turned into energy cell can use In the bakery: oven Photosynthesis Makes food for cell Occurs in leaf cells Chloroplasts Makes leaves green Some cool cell models