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33 Cards in this Set
- Front
- Back
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The scientific study of cells |
Cytology |
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This guy coined the word "celluae" to describe empty cell walls of cork |
Robert hooke |
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This guy concluded animal tissues were made of cells |
Theodor schwann |
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What is modern cell theory? |
All organisms composed of cells and cell products |
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How large is the human cell? |
10-15 micrometers in diameter |
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Cytoplasm |
Fluid between nucleus and surface membrane |
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This is made of proteins and lipids. Composition can vary from one region of the cell to another |
Plasma membrane |
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Example of cytoplasm |
Organelles/ ctyoskeleton/ cytosol |
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3 major constituents of the cell |
Plasma membrane, cytoplasm, and extracellular fluid |
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Simplest form if matter to have unique chemical properties |
Element |
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Number of protons in its nucleus |
Atomic number |
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Inorganic elements extracted from soil by plants and passed up the food chain to humans |
Minerals |
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Electrolytes |
Needed for nerve and muscle function. |
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Who developed atomic theory in 1803? |
John Dalton |
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This guy proposed a planetary model of atomic structure. Planets orbiting the sun |
Neils bohr |
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Single, + charge, mass =1 mass unit |
Protons |
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No charge, mass |
Neutrons |
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Total number of protons and neutrons |
Atomic mass |
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Single, - charge, very low mass. Determines chemical properties of an atom |
Electrons |
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Determines chemical BONDING properties of an atom |
Valence electrons |
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Varieties of an element that differ from one another only in the number of neutrons |
Isotopes |
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Radioisotopes decay to stable isotopes releasing radiation |
Radioactivity |
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Radiation lady |
Madame curie |
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Potential energy stored in the bonds of molecules |
Chemical energy |
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A process in which a covalent or iconic bond is formed or broken |
Chemical reaction |
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3 classes of chemical reactions |
Decomposition reactions Synthesis reactions Exchange reactions |
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Substances that temporarily bond to reactants, react with each other and may change the shapes of reactants |
Catalyst |
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4 categories of carbon compounds |
Carbs, lipids, proteins, nucleotides and nucleic acids |
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Molecules made of repetitive series of identical subunits |
Polymers |
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Identical or similar subunits... |
Monomers |
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Living cells forming polymers |
Dehydration synthesis |
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3 important disaccharides |
Sucrose, lactose, maltose |
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Proteins that function as biological catslysts |
Enzymes |
