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Published byPenelope Williamson Modified over 9 years ago
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Eukaryotic Cell Structure and Function Animal and Plant Cells
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Essential Questions How does a cell function? How do materials the cell needs get into the cell? What are the 3 most important organelles and what do they do?
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Eukaryotic Cell Structure
Cell membrane – membrane that surrounds cell and separates outer from inner. Nucleus – internal compartment of cell that houses cell’s DNA Organelles – structures in a cell that carry out specific jobs for cell. Cytoplasm – the jelly-like fluid where the organelles “float.”
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Cytoskeleton Cytoskeleton – network of protein filaments( microtubules) in cytoplasm. help cell maintain shape, move, and move organelles. help with cell division
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Cytoskeleton
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Inside the Nucleus Nuclear Envelope – membrane that surrounds the nucleus. Chromatin – consists of DNA wrapped around proteins. Chromosomes – condensed string-like structure that forms from DNA just before the cell divides. Nucleolus – structure within the nucleus that makes ribosomes.
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Inside the Nucleus Nucleolus Chromatin Nuclear Envelope
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Ribosomes – made of RNA and protein. Make Proteins!
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Ribosomes Ribosome
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Small, membrane-bound sac that transports substances in cells
Vesicle Small, membrane-bound sac that transports substances in cells Some become lysosomes
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Vesicle vesicle
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Endoplasmic Reticulum (ER)
Endoplasmic reticulum – internal membrane system of the cell that moves proteins and other substances. Rough ER – has ribosomes, makes proteins Smooth ER – no ribosomes, makes lipids, and breaks down toxins
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Endoplasmic Reticulum (ER)
Rough ER Smooth ER
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Golgi Apparatus – modifies, sorts, and packages proteins.
like UPS
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Golgi Apparatus Golgi Apparatus
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Lysosomes – small organelles filled with enzymes.
Digest molecules and old cell parts to be used by the cell
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Mitochondria Mitochondria – converts chemical energy stored in food into compounds that are more convenient for the cell to use. “Powerhouse of the Cell!” Makes energy (ATP). Has own DNA
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Mitochondria Mitochondria
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Plant Cells – 3 features Animal cells don’t have.
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Central Vacuole Central Vacuole – large, space; stores water and other substances such as ions, nutrients, and wastes.
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Central Vacuole Vacuoles
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Chloroplasts Chloroplasts – organelles that capture light energy from sunand convert it into chemical energy. (Photosynthesis) Found only in plants, algae, and some bacteria. Has own DNA.
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Chloroplasts Chloroplast
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Cell wall Cell Wall - structure surrounding cell membrane that provides structure and shape. composed of proteins, carbs, and cellulose protects from damage and connects it to next cell
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Cell Wall Cell wall
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Animal Cell vs. Plant Cell
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Make foldable of plant and animal cell.
Activities Make foldable of plant and animal cell. Must have drawing of both animal and plant cells. Must be colored and labeled. Must have venn diagram comparing cells. Will be graded with rubric Homework – Cell City Analogy
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