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Cell Transport
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Is the sodium-potassium pump passive or active?
active
Are ion channels passive or active?
passive
Is facilitated diffusion passive or active?
passive
Is simple diffusion passive or active?
passive
Is exocytosis passive or active?
active
Is endocytosis passive or active?
active
Is osmosis passive or active?
passive
How many potassium ions are pumped into the cell for every 3 sodium ions that are pumped out?
2
How many sodium ions are pumped out of the cell for every 2 potassium ions that are pumped in?
3
What is the specialized protein that moves Na+ and K+ across the cell membrane?
sodium-potassium pump
_______ is a process in which cells form a vesicle around particles to expel them from the cell.
exocytosis
________ - taking in specific particles using receptors
receptor mediated
________ - taking in dissolved or small particles
pinocytosis
________ - taking in solid or large particles
phagocytosis
What are the three examples of endocytosis?
phagocytosis, pinocytosis, receptor mediated
_______ is a process in which cells surround and engulf substances that are too large to enter the cell.
endocytosis
What are the three examples of active transport?
endocytosis, exocytosis, sodium-potassium pump
_______ = out of the cell
exocytosis
_______ = into the cell
endocytosis
____- means cell
cyto
____- means out
exo
____- means in
endo
________ transport is used to move very large molecules that will not fit through the membranes or transport proteins.
active
______ transport requires energy.
active
______ transport moves substances across the cell membrane against the concentration gradient.
active
In an ______ solution, water enters and leaves the cell at the same rate.
isotonic
Hypertonic = water moves _______ the cell.
out of
A cell is in a ________ solution if the concentration of water inside of the cell is higher than the concentration outside the cell.
hypertonic
Hypotonic = water moves _______ the cell.
into
A cell is in a ________ solution if the concentration of water inside of the cell is lower than the concentration outside the cell.
hypotonic
When the percentage of water is lower on the outside than the inside, the cell will become ______.
hypertonic
When the percentage of water is higher on the outside than the inside, the cell will become ______.
hypotonic
The ideal amount of water in the cell = _______
isotonic
Too little water in the cell = ______
hypertonic
Too much water in the cell = _______
hypotonic
Channel proteins called ______ assist in osmosis.
aquaporins
_____ is the diffusion of water across a semipermeable membrane.
osmosis
An ____ is a charged particle.
ion
_______ are specialized channels used in facilitated diffusion that allows ions into and out of the cell.
ion channels
Which type of transport protein has to change shape to allow things to pass through?
carrier
Which type of transport protein is like a tunnel and just allows things to pass through?
channel
What are the two types of transport proteins that facilitated diffusion uses?
carrier and channel
Facilitated diffusion uses ______ ______ to transport substances but does not use energy.
transport proteins
Facilitated diffusion moves ____ and polar molecules across the membrane using proteins.
ions
What are the three types of passive transport?
simple diffusion, facilitated diffusion, osmosis
Facilitated diffusion is a type of _____ transport.
passive
Simple diffusion moves molecules that are _______ and have no charge, so they can pass right through the membrane.
nonpolar
_________ moves water molecules through the membrane from high to low concentration.
osmosis
_________ moves molecules through the membrane from high to low concentration with the use of transport proteins.
facilitated diffusion
_________ moves molecules through the membrane from high to low concentration without the use of transport proteins.
simple diffusion
_____ is the state in which the concentrations on both sides of a semipermeable membrane are the same or equal.
equilibrium
If the temperature is high (hot), the molecules will move _____ than if they were cold.
faster
The rate at which molecules move depends on factors such as _____ and _____.
temperature and concentration gradient
What is one example of diffusion that Miss Luzadder gave during notes?
oil diffuser, AXE body spray, peeling an orange, baking cookies/brownies
A difference of concentrations between two regions is called the _____.
concentration gradient
Another name for passive transport is ______.
diffusion
In passive transport, substances move from _____ to _____ concentration,
high to low
In passive transport, substances move across the cell membrane _____ the concentration gradient.
with
Cellular energy is called ____.
ATP
Active Transport - _________ required
energy
Passive Transport - ___________ required
no energy
What are the two types of cell transport?
passive and active
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