Transcript Chapter 5 Review

Chapter 5
Review Sheet
Type of transport where substances
enter and leave the cell WITHOUT
using energy
► Passive
transport
Three types of passive transport:
► 1.
diffusion
► 2. osmosis
► 3. facilitated diffusion
When molecules move from an area
of high concentration to an area of
low concentration
► diffusion
Three things that influence the rate
of diffusion:
► 1.
Temperature
► 2. Pressure
► 3. Concentration
When the concentration of molecules
is the same throughout a solution
► equilibrium
Membranes that only allow certain
molecules to pass through
► Semi-permeable
Diffusion of WATER
► osmosis
When the concentration inside the
cell EQUALS the concentration
outside the cell
► isotonic
When water enters the cell and it
swells
► Hypotonic
solution
When water leaves the cell causing it
to shrink
► Hypertonic
solution
Kind of pressure that keeps plant
cells strong
► Turgor
pressure
When the cell membranes of plant
cells pull away from the cell wall
when there is a shortage of water
► plasmolysis
Diffusion that uses proteins to help
move particles across the cell
membrane
► Facilitated
diffusion
Molecules moving from an area of
LOW concentration to an area of
HIGH concentration
► Active
transport
Does active concentration require
energy from the cell?
► yes
Does passive transport require
energy from the cell?
► no
Active transport where molecules are
taken INTO the cell
► Endocytosis
Active transport where molecules are
moved OUT of a cell
► exocytosis
Type of endocytosis that allows
FLUIDS into a cell
► pinocytosis
Type of endocytosis that allows
solids into the cell
► phagocytosis
The sodium potassium pump allows
_______ molecules in and _______
molecules out
► Potassium
( K +) IN
► Sodium (Na +) OUT
Form of energy for the cell?
► ATP
Which cell structure maintains
homeostasis?
► Cell
membrane
► What
happens if a freshwater plant is placed
in a salt water aquarium (2pts)?
► Why
could you smell the perfume when I
sprayed it (2pts)?