Biology 3.2 Power Notes (cell organelles)

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Cytoskeleton
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Supports and shapes cell (made of proteins), helps position and transport organelles
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Nucleus
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Stores genetic information in the form of chromosomes
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Endoplasmic Reticulum
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assists in transportation through the cell
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Ribosomes
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link amino acids to form proteins
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Golgi Apparatus
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processes, sorts, packages and delivers proteins.
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Vesicle
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membrane-bound sacs that hold materials until they are shipped out of the cell
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Mitochondria
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supply energy to the cell
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Vacuoles
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fluid filled sacs that store materials like food and water. Way bigger in plant cells.
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Lysosomes
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contain enzymes to digest material
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Centrioles
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tubes, help divide DNA during mitosis. Only in animal cells.
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Cell Wall
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provides rigid support, is outside the cell membrane, only in plant cells and some bacteria.
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Chloroplast
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convert sun energy to chemical energy (photosynthesis). Only in plant cells.
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receptor
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protein that detects a signal molecule and performs an action in response

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