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Unit 4: Cell Transport

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Hypertonic
There is a greater concentration of solute molecules OUTSIDE the cell than inside.
Hypotonic
There is a LOWER concentration of solute molecules OUTSIDE the cell than inside.
Isotonic
There is the SAME concentration of solute molecules outside the cell as inside.
Turgor Pressure
The pressure inside a plant cell caused by water pushing against the cell wall.
Cytolosis
The SWELLING and BURSTING of animal cells when water enters. This happens when an animal cell is placed in a hypotonic solution.
Increase
Placing plant cells in a HYPOTONIC solution will causes the osmotic pressure to ______________.
Phasmolysis
The SHRINKING of plant cells when water leaves so the cell membrane pulls away from the cell wall. It happens when a plant cell is placed into a hypertonic solution.
Decrease
When water leaves a plant cell, the osmotic pressure (turgor pressure) will ______________.
Solvent
The substance that is NOT water is called the ______________.
Down the concentration gradient
During diffusion molecules tend to move ____________________.
Osmosis
The diffusion of water across a selectively permeable membrane.
Facilitated Diffusion
Glucose enters cells by this.
Going through the tunnel made by integral protein.
Water enters cells by ____________.
Mitochondria
Energy for active transport comes from a cell's ___________________.
Endocytosis
A cell must EXPEND energy to transport substances using ___________________.
Endocytosis
White blood cells engulf, digest, and destroy invading bacteria using ___________________.
Integral
The carrier proteins that help is facilitated diffusion are _____________________ proteins.
Diffusion, osmosis, simple diffusion, facilitated diffusion, ion channels
Kinds of passive transport.
Vesicle
Endocytosis and exocytosis both create a small pocket called a ________________.
Glycolipid
Carbohydrates that are attached to a phospholipid are called ________________.
Glycoprotein
Carbohydrates that are attached to a PROTEIN are called _________________. They indicate the type of cell.
Move into the cell
Placing an animal cell in a hypotonic solution will cause water to _________________.
Exocytosis
Golgi bodies use ___________ to release large molecules from inside to outside the cell.
Mitochondria
The cell organelles that burn glucose and make energy for active transport are the ___________________________.
Facilitated
During _________________ diffusion, carrier proteins (integral proteins) act as a tunnel from one side of the membrane to another.
Integral Protein
An _________________________ is a membrane protein that helps move molecules across a cell membrane.
Concentration Gradient
A _______________________ forms whenever there is a difference in concentration between one place and another.
Down
When molecules move from high to low concentration along a concentration gradient we say they are moving _______________ the gradient.
Turgor Pressure
_______________ is caused by water inside a plant cell pushing against the cell wall.
Plasmolysis
The shrinking of a plant cell membrane away from the cell wall when placed in a hypertonic solution is called _____________________.
Endocytosis
White blood cells use ____________________ to engulf and destroy bacteria that the glycoproteins recognize as "not self".
Lyse
The swelling and bursting of animal cells when placed in a hypotonic solution is called ______________________.
Integral
Proteins (like carrier proteins) that stick into the cell membrane and span all the way through are called ___________ proteins.
Peripheral
Proteins which are part of the membrane but do NOT span all the way through are called __________________.
Phospholipids
Main component of the cell membrane.
Cholesterol
Prevents close packing of the lipids.
Proteins
Transport ions through the membrane
Concentration Gradient
The unequal distribution of particles.
Osmotic Pressure
The water pressure in cells.
Turgor Pressure
The water pressure in PLANT cells.
Plasmolysis
Process where the cell membrane pulls AWAY from the cell due to water loss.
Diffusion
High to low concentration.
Osmosis
The diffusion of water.
Facilitated Diffusion
"needs a passageway" and uses proteins.