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CP Cell transport
Cell transport f14
Question | Answer |
---|---|
Active transport | movement of a particle through a membrane against a concentration gradient with the use of energy from ATP; from low to high areas |
cilia | hair like organelles that line the surfaces of some cells that beat in rhythmic waves, providing locomotion |
concentration gradient – | the difference in the amount of substances inside and outside of the cell |
contractile vacuole | found in many microorganisms that expand, filled with water and then empties contents to the exterior. |
diffusion | movement of particles from an area of high concentration to an area of low concentration. |
facilitated diffusion – | type of passive transport that uses the aid of a protein to transport substances. |
flagella– | tail like extension of cytoplasm for movement. |
homeostasis | maintenance of the internal stability of a cell organism, or population in its environment |
osmosis | movement of water through a membrane from area of high concentration to an area of low concentration |
passive transport | The movement of a chemical substance across a cell membrane without expenditure of energy by the cell, as in diffusion. |
perspiration | serves both as a means of excretion and as a regulator of body temperature through the cooling effect of its evaporation |
protein pump – u | sed energy to moves substances form low to high concentrations |
receptor proteins | have a high specific affinity for binding agents known to stimulate cellular activity. |
stem cells | can divide (through mitosis) and differentiate into diverse specialized cell types |
tissue | group of cells with a common structure and function |