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28 Cards in this Set
- Front
- Back
facilitated diffusion
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diffusion of materials across a cell membrane assisted by carrier molecules or protiens.
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Phagocytosis
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extensions of the cytoplasm surround and engulf large particles
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Active Transport
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an energy-requiring process that enables material to move across a cell membrane again a concentration difference.
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Passive Transport
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process in which particles move from an area of high concentration to an area of low concentration on their own using no energy
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Endocytosis
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the process of taking material into the cell by means on infoldings, or pockets, ove the cell membrane.
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Exocytosis
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The membrane surrounding the material fuses with the cell membrane, forcing the contents out of the cell.
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Organ
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group of tissues that work together to perform a specific function
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Organ system
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group of organs that work together to perform a specific function
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Pinocytosis
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the process of ting pockets froming along the cell membrane, filling with liquid, and piching off to form vacuoles within the cell.
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Tissue
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a group of similiar cells that perform a particular function.
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adenosine triosphate ATP
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a compound that stores energy in three phosphate bonds
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Photosynthesis
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The process by which plants use the energy of sunlight to produce carbohydrates
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Formula for Photosynthesis
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carbon dioxide + water--light--> carbohydrate/glucose + Oxygen
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autotrophs
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green plants that use the sun to directly obtain energy
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heterotrophs
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Organisms that cannot use the sun's energy directly
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pigments
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colored substances that absorb or reflect light.
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Chlorophyll
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the green pigment the enables plants to carry on photosynthesis. Red and blue are the colors of the visible spectrum that are absorbed by It
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Glycolysis
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the first step in cellular respiration
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Aerobic process
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a process that requires oxygen
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lactic acid
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fermentation produces ATP in your muscle cells during rapid exercise when they cannot get enough oxygen
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Fermentation
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process that enables cells to carry out energy production in the absence of oxygen; breakdown of glucose and release of energy in which organic substances are the final electron acceptors
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alcoholic fermenation
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carried out by yeast cells and is of particuluar importance to brewers and bakers
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Osmosis
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the diffusion of water molecules through a selectively permeable membrane
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Diffusion
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the process by which molecules of a substance move from areas of high concentration of that substance to areas of lower concentration.
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Van Leeunwenhoek
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1600's developed microscope... looked at organisms in pond water
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Robert Hook
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1600's saw cell walls of dead cork cells and called them cells
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Schlieden and Schwann
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1800's proposed the cell theory
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Cell theory
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1.All living things are composed of cells
2.cells are the basic units of structure and function in living things. 3.All cells come from pre-existing cells |