Flashcards
Cells
Flashcards do conjunto (27)
- 1regions of the cellcell membrane
cytoplasm
nucleus - 2plasma membranephospholipid bilayer with embedded proteins, cholesteral and glycolipids
- 3what does the cytoplasm do?surrounds cytoplasm and separates it from outside environment
- 43 functions of cell membrane1. barrier
2. regulates flow,
3. communicates - 5What do the different membrane proteins do?Ion channels
carriers/transports
receptors
enzymes
linkers
cell identify markers - 6ion channelsallow specific ions through membrane
- 7selective permeabilitymembrane allows only some substances to cross
- 8Crossing the cell membranesubstances need to move across to keep the cell alive
- 9concentration gradientdifference in the concentration of a chemical from one place to another
- 102 ways substances move across membranepassive(no ATP)
active( ATP) - 11Passive processdiffusion(particles) & osmosis(solvent)
- 12diffusionnet movement of particles high area concentration to low
- 13facilitated diffusionproteins used to transport large molecules across membrane
- 14osmosisnet movement of SOLVENT through a selectively permeable membrane
- 153 possibilities of osmosisisotonic
hypertonic
hypotonic - 16isotonicsame solution. enters and leaves
most IV solutions - 17hypertonicif cell is surounded by hyPERtonic solution, water leaves the cell.
-cell shrivels
*used for brain swelling - 18hypotonicif cell is surrounded by hyPOtonic solution, water enters the cell.
-Cell will swell and burst
*used for dehydration - 19Active process (crossing cell membrane)requires ATP and proteins to move particles from low to high concentration
(across gradient) - 20endocytosisIN
bringing cells into the cell using vesicle - 212 kinds of endocytosisphagocytosis - cell eating
pinocytosis - cell drinking - 22exocytosisOUT
movement of materials out of the cell using secretory vesicle - 232 important kindsdigestive enzymes
neurotransmitters - 24Cytoplasmall cellular contents between plasma membrane and nucleus
- 252 components cytoplasmcytosol
organelles - 26cytosolintracellular fluid
site for cells chemical rxn
55% of cell volume - 27organelleslittle organ
specialized structures that perform cell functions
Informações
- Descrição
- FlashCards sobre Cells, criado por Laura Miller em 11-06-2017.
- Criado por
- Laura Miller · jun 2017
- Atualizado
- 13 jun 2017
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- 26
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