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15 Cards in this Set
- Front
- Back
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Cell membrane
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Composed of protein and lipid molecules.
Maintains integrity of cell, controls passage of materials in and out of the cell, and provides for signal transduction. |
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Ribosomes
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Particle composed of protein and RNA molecules.
Synthesize proteins. |
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Endoplasmic Reticulum
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Complex of connected, membrane-bound sacs, canals, and vesicles.
Transports materials in the cell, provides attachment for ribosomes, and synthesize lipids. |
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Vesicles
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Membranous sacs.
Contains substances that recently entered the cell, store and transport newly synthesized molecules. |
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Golgi Apparatus
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Group of flattened, membranous sacs.
Packages and modifies protein molecules for transport and secretion. |
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Mitochondria
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Membranous sacs with inner partitions.
Release energy from food molecules for transport and secretion. |
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Lysosomes
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Membranous sacs.
Contains enzyme capable of digesting worn cellular parts or substances that enter cells. |
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Peroxisomes
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Membranous vesicles.
Contains enzymes called peroxidases, important in the breakdown of many organic molecules. |
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Centrosome
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Nonmembranous structure composeed of two rodlike centrioles.
Helps distribute chromosomes to new ceslls during cell division, initiates formation of cilia. |
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Cilia
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Motile projections attached to basal bodies beneath the cell membrane.
Propel fluids over cellular surface. |
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Flagella
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Motile projections attached to basal bodies beneath the cell membrane.
Enable sperm cells to move. |
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Microfilaments/Microtubles
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Thin rods and tubules.
Support cytoplasm, help move substances and organelles within the cytoplasm. |
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Nuclear Envelope
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Porous double layer that separates the nuclear contents from the cytoplasm.
Maintains the intergrity of the nucleus, controls passage of materials between nucleus and cytoplasm. |
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Nucleolus
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Dense, nonmembranous body composed of protein and RNA molecules.
Site of ribosome formation. |
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Chromatin
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Fibers composed of protein and DNA molecules.
Carries information for synthesizing proteins. |
