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19 Cards in this Set
- Front
- Back
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Active transport |
Net movement of dissolved substances across a cell membrane by an energy-requiring process that moves substances against a concentration gradient from a region of lower to higher concentration. Adenosine triphosphate (ATP) |
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Adenosine triphosphate (ATP) |
Compound containing adenosine and three molecules of phase hate, the major supplies of which are produced in the mitochondria; common source of chemical energy for cells. |
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Antigens |
Compounds, usually proteins, that can trigger the immune system to respond in various ways, including antibody production. |
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Apoptosis |
The natural death of cells, also called programmes cell death. |
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Cancer |
Abnormal and uncontrolled cell multiplication. |
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Cellular respiration |
Process of transferring energy present in organic compounds to a form useable by cells, typically ATP. |
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Chloroplasts |
Chlorophyll-containing organelles that occur in the Cytosol of cells of specific plant tissue. |
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Chromosomes |
Thread-like structures composed of DNA and protein, and visible in cells during mitosis and meiosis. |
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Cytoskeleton |
Network of filaments within a cell. |
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Cytosol |
Fluid contents of a cell. |
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Deoxyribonucleic acid (DNA) |
Nucleic acid containing the four bases— adenine, guanine, cytosine and thymine—which forms the major component of chromosomes and contains codes generic instructions. |
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Deano domes |
Type of cell-to-cell junction in which protein filaments span the intercellular space and hold the cells together. |
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Diffusion |
Net moment of a substance from a region of high concentration of the substance to s region of lower concentration; the process does not require energy. |
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Endocytosis |
Bulk movement of solids or liquids into a cell by engulfment. |
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Endoplasmic reticulum |
Organelles consisting of a system of membrane-bound channels that transport substances within a cell. |
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Eukaryote |
Cell or organism with a membrane- bound nucleus. |
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Exocytosis |
Movement of material out of cells via vesicles in the cytoplasm. |
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Golgi apparatus |
Also known as Golgi complex or Google body; organelle that packages material into vesicles for export from a cell. |
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Golgi complex |
Organelles that packages material into vesicles for export from a cell (also known as Golgi apparatus or Golgi body). |
