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A&P Chapter 3

Cells: The Living Units

Basic living structure CELL
3 PARTS OF THE CELL 1.Plasma Membrane 2.Cytoplasm 3.Nucleus
Intracellular Fluid Cytoplasm
Extracellular fluid any fluid outside of cell
Fluid mosaic model Phospholipid bilayer
"sugar coating" used for cells to ID other cells glycocalyx
Proteins mounted in the PM Integral proteins
Proteins loosely mounted to integral proteins Peripheral proteins
Junction that forms an impermeable junction. Tight junction
Communicating junction between cells Gap junction
Fluid between cells Interstitial fluid or intercellular fluid
Diffusion along a concentration gradient Simple diffusion
Diffusion aided by protein carriers or channels Facilitated diffusion
Diffusion of water Osmosis
Soln with the same tonicity as the cell Isotonic
Soln with higher tonicity than the cell Hypertonic
Cells immersed in hypertonic soln will: Shrink (crenate)
Soln with lower tonicity that the cell Hypotonic
Cells immersed in hypotonic soln will: Swell and burst (lyse)
Movement against a concentration gradient Active transport
Transport requiring energy Active transport
Sodium potassium pump is an example of: primary active transport
Vesicles move substances out of the cell in: exocytosis
Cell ingests a substance in the process of: endocytosis
Vesicles move a substance across a cell in: transcytosis
A cell engulfing solid material Phagocytosis
A cell engulfing fluid Pinocytosis
Cellular material between the PM and nucleus Cytoplasm
Components of cytoplasm cytosol, organelles, inclusions
powerhouse of the cell mitochondria
traffic director and packaging center golgi apparatus
disintegrator bodies lysosomes
small motile extensions of the cell cilia
long motile extensions of the cell flagella
tiny extensions of the PM microvilli
Cell control center Nucleus
Created by: 1661678007



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