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BIO 181 Exam 1 |Questions with 100% correct Answers
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BIO 181 Exam 1 |Questions with 100% correctAnswers
Passive membrane transport - ✔️✔️No energy is required, moves from higher to lower
concentrations, and goes down the concentration gradient
Peripheral membrane protein - ✔️✔️A membrane protein found only on the surface of the
membrane.
Permeable membrane - ✔️✔️A membrane that is capable of being passed through by everything
Phagocytosis - ✔️✔️the process by which a cell engulfs large particles or whole cells, either as a
defense mechanism or as a means to obtain food.
Phospholipid bilayer - ✔️✔️a double layer of phospholipids that makes up plasma and organelle
membranes
Pinocytosis - ✔️✔️process by which a cell takes in liquid from the surrounding environment
Receptor-mediated endocytosis - ✔️✔️The movement of specific molecules into a cell by the
inward budding of membranous vesicles containing proteins with receptor sites specific to the
molecules being taken in; enables a cell to acquire bulk quantities of specific substances
Semi-permeable membrane - ✔️✔️a membrane that allows some molecule to pass through but
not others
Symport - ✔️✔️A membrane transport process that carries two substances in the same direction
across the membrane.
, Tight junctions - ✔️✔️Points between neighboring animal cells in which specific proteins seal two
cells together, preventing fluid leakage
Trans-membrane protein - ✔️✔️A membrane protein that passes through the entire membrane.
Uniport - ✔️✔️A membrane transport process that carries a single substance.
ATP - ✔️✔️(adenosine triphosphate) main energy source that cells use for most of their work
Cancer - ✔️✔️any malignant growth or tumor caused by abnormal and uncontrolled cell division
Cell - ✔️✔️(biology) the basic structural and functional unit of all organisms
Cell theory - ✔️✔️(biology) the theory that cells form the fundamental structural and functional
units of all living organisms
Cell wall - ✔️✔️a thin membrane around the cytoplasm of a cell
Chloroplast - ✔️✔️an organelle found in plant and algae cells where photosynthesis occurs
Cilia - ✔️✔️The hairlike projections on the outside of cells that move in a wavelike manner
Cytoplasm - ✔️✔️a jellylike fluid inside the cell in which the organelles are suspended
Cytoskeleton - ✔️✔️network of proteins in the cytoplasm that help cell maintain its shape
Cytosol - ✔️✔️the semifluid portion of the cytoplasm
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