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23 Cards in this Set
- Front
- Back
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active transport
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Movement of a substance into or out of a cell in the opposite direction to the way it would normally flow by diffusion
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cancer
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tumor that spreads to other tissues (malignant neoplasm)
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chromosome
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dark-staining threadlike body in the nucleus of a cell (contains genes that determine hereditary traits)
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cytology
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study of cells
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cytoplasm
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substance that fills the cell (liquid cytosol and organelles)
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DNA (deoxyribonucleic acid)
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genetic material of the cell (makes up the chromosomes in the nucleus)
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endocytosis
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movement of large amounts of materials into a cell (Ex:phagocytosis and pinocytosis)
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gene
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hereditary factor (portion of the
DNA on a chromosome) |
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interphase
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stage of the life of a cell between one mitosis and the next when a cell is not dividing
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isotonic
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describing a solution that has the same concentration as the fluid within a cell
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micrometer
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1/1000th of a millimeter, a micron (an instrument for measuring thru a microscope
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microscope
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magnifying instrument used to examine cells and other structures not visible w/the naked eye
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mitochondria
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cell organelles that manufacture ATP w/the energy released from the oxidation of nutrients
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mitosis
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thype of cell division that produces two daughter cells exactly like the parent cell
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mutation
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Change in a gene or a chromosome
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nucleotide
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building block of DNA & RNA
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nucleus
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largest organelle in the cell, containing the DNA, which directs all cell activities (group of neurons in the central nervous system) atoms center
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organelle
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specialized subdivision within a cell
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osmosis
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movement of water thru a semipermeable membrane
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phagocytosis
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engulfing of large particles thru the plasma membrane
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plasma membrane
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outer covering of a cell (regulates what enters and leaves)
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ribosome
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small body in the cell's cytoplasm that is a site of protein manufacture
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RNA (ribonucleic acid)
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substance needed for protein manufacture in the cell
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