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32 Cards in this Set
- Front
- Back
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Vacuoles |
Materials like water, salts, proteins, and carbohydrates |
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Lysosomes |
Small organelles filled with enzymes |
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Cytoskeleton |
A network of protein filaments |
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Centrioles |
Located near nucleus and help organize cell division |
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Ribosome |
Small particles of RNA and protein found throughout the cytoplasm in all cells |
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Endoplasmic Reticulum |
Internal membrane system |
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Golgi Apparatus |
Appears a stack of flattened membranes that sorts and modifies material from the endoplasmic reticulum |
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Chloroplasts |
The biological equivalent of solar power plants |
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Cell |
Basic unit of life |
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Cell Theory |
Fundamental concept of biology |
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Cell Membrane |
Thin flexible barrier surrounding cell |
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Nucleus |
A large membrane enclosed structure that contains genetic material in the form of DNA |
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Eukaryotes |
Cell that enclose their DNA in nuclei |
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Prokaryotes |
Cells that do not contain DNA in nuclei |
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Organelles |
Greek for "little organs" |
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Mitochondria |
Power house of the cell that converts chemical energy stored in food into more cell convenient compounds |
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Cell Wall |
Strong supporting layer around the membrane |
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Lipid Bilayer |
A flexible structure that builds a strong barrier between the cell and its surroundings |
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Selectively Permeable |
Some substances can move across and others can't |
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Diffusion |
The process in which particles go from high to low concentration |
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Facilitated Diffusion |
The process of molecules going through protein channels instead of the membrane itself |
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Aquaporins |
Water channel proteins |
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Osmosis |
The diffusion of water through a selectively permeable membrane |
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Isotonic |
Same strength |
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Hypertonic |
Above strength |
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Hypotonic |
Below strength |
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Osmotic Pressure |
A force produced by the net movement of water |
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Homeostasis |
Relatively constant internal physical and chemical conditions |
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Tissue |
A group of similar cells that for a certain function |
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Organ |
Many groups of tissues working together |
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Organ System |
A group of organs that work together to perform a certain function |
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Receptor |
Used to respond to chemical signals |
