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Organelles of Eukaryotic cells
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Eukaryotic cells vs Prokaryotic cells
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Representative Animal Cell
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Representative Plant Cell
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Cell Walls Found in plants, fungi, & many protists.
Also found in bacteria Surrounds plasma membrane
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Cell Wall Differences Plants – mostly cellulose Fungi – contain chitin
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Centrioles Pairs of microtubular structures
Play a role in cell division
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Chloroplasts Derived form photosynthetic bacteria
Solar energy capturing organelle
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Chromosomes Tightly packaged DNA that is coiled around histones
Only condensed into chromosomes during cell division
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Cilia & Flagella Provide motility Cilia Flagella
Short Used to move substances outside human cells Flagella Whip-like extensions Found on sperm cells Basal bodies like centrioles
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Cilia & Flagella Structure
Bundles of microtubules With plasma membrane
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Cytoplasm Viscous fluid containing organelles components of cytoplasm
Interconnected filaments & fibers Fluid = cytosol Organelles (not nucleus) storage substances
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Golgi Apparatus Involved in synthesis of plant cell wall
Packaging & shipping station of cell
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Golgi Apparatus Function
1. Molecules come in vesicles 2. Vesicles fuse with Golgi membrane 3. Molecules may be modified by Golgi 4. Molecules pinched-off in separate vesicle 5. Vesicle leaves Golgi apparatus 6. Vesicles may combine with plasma membrane to secrete contents
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Lysosomes Contain digestive enzymes Functions Aid in cell renewal
Break down old cell parts Digests invaders
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Cytoskeleton Filaments & fibers Found in both pro and eukaryotes
Made of 3 fiber types Microfilaments Microtubules Intermediate filaments 3 functions: mechanical support anchor organelles help move substances
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Microfilaments Made of protein called actin Force of movement in cells
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Microtubules Made of tubulins Make up cilia and flagella
Help with movement
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Mitochondria Have their own DNA Bound by double membrane
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Mitochondria Break down fuel molecules (cellular respiration)
Glucose Fatty acids Release energy ATP
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Nuclear Envelope Boundary surrounding the nucleus from the cytoplasm
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Nucleolus Most cells have 2 or more Directs synthesis of RNA
Forms ribosomes
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Nucleus Control center of cell Double membrane Contains Chromosomes
Nucleolus
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Peroxisomes Like lysosomes but with different enzymes
Contain digestive enzymes Functions Aid in cell renewal Break down old cell parts Digests invaders
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Plasma Membrane Contains cell contents
Double layer of phospholipids & proteins
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Ribosomes Site of protein synthesis
One of the few things that both prokaryotic and eukaryotic cells have in common.
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Rough Endoplasmic Reticulum
Ribosomes attached to surface Manufacture protiens Not all ribosomes attached to rough ER May modify proteins from ribosomes
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Smooth Endoplasmic Reticulum
No attached ribosomes Has enzymes that help build molecules Carbohydrates Lipids
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Vacuoles Membrane bound storage sacs
More common in plants than animals Contents Water Food wastes
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Work on your coloring page and study!!!
You have a quiz over this tomorrow!
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