relatively constant internal physical and chemical conditions that organisms maintain

when comparing two solutions, the solution with the lesser concentration of solutes (causes cells to swell)

when the concentration of two solutions is the same

when comparing two solutions, the solution with the greater concentration of solutes (causes cell to lose water)

process by which particles tend to move from an area where they are more concentrated to an area where they are less concentrated

diffusion of water through a selectively permeable membrane

the movement of substances in the body that requires no energy

the movement of substances in the body that DOES require energy

Facilitated Diffusion

process of diffusion in which molecules pass across the membrane through cell membrane channels

the movement of large substances into the cell membrane by breaking apart the membrane

the movement of large substances out of the cell membrane by breaking it apart and resealing it

unicellular organism that lacks a nucleus

organism whose cells contain a nucleus

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Ch 8 Vocab

Term	Definition
Homeostasis	relatively constant internal physical and chemical conditions that organisms maintain
Hypotonic	when comparing two solutions, the solution with the lesser concentration of solutes (causes cells to swell)
Isotonic	when the concentration of two solutions is the same
Hypertonic	when comparing two solutions, the solution with the greater concentration of solutes (causes cell to lose water)
Diffusion	process by which particles tend to move from an area where they are more concentrated to an area where they are less concentrated
Osmosis	diffusion of water through a selectively permeable membrane
Passive Transport	the movement of substances in the body that requires no energy
Active Transport	the movement of substances in the body that DOES require energy
Facilitated Diffusion	process of diffusion in which molecules pass across the membrane through cell membrane channels
Endocytosis	the movement of large substances into the cell membrane by breaking apart the membrane
Exocytosis	the movement of large substances out of the cell membrane by breaking it apart and resealing it
Prokaryotes	unicellular organism that lacks a nucleus
Eukaryotes	organism whose cells contain a nucleus

Created by: kdulin

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