WorksheetsHomeostasis and Cell Transportation Review
Total questions: 41
Worksheet time: 21mins
___ is the maintenance of an internal balance of conditions in a changing external environment.
Diffusion
Endocytosis
Passive transport
Homeostasis
Molecules move in and out of a cell by diffusion. The picture shows a cell and molecules both inside and outside the cell. How will the molecules in this illustration move as a result of diffusion?
into the cell
out of the cell
into another cell
to the external environment
Cell membranes are semi-permeable because they allow only certain particles to cross into or out of the cell.
True
False
The movement of particles across a cell membrane without the use of energy by the cell is called?
Active Transport
Passive Transport
Endocytosis
Exocytosis
______ is the movement of molecules from high concentrations to low concentrations.
Diffusion
Endocytosis
Exocytosis
Osmosis
When particles are enclosed in a vesicle and released from a cell, the process is called _____?
diffusion
endocytosis
exocytosis
osmosis
_____ is the diffusion of water through a semi-permeable membrane.
Diffusion
Endocytosis
Exocytosis
Osmosis
The movement of materials across the cell membrane from areas of low concentration into areas of higher concentration and requires the cell to use energy.
Passive Transport
Active Transport
Osmosis
Diffusion
Diffusion and osmosis are what type of transport?
Active transport
Passive transport
The process by which a cell uses energy to surround a particle and enclose the particle in a vesicle to bring the particle into the cell is called ______?
diffusion
endocyctosis
exocytosis
osmosis
Endocytosis and exocytosis are forms of active transport?
True
False
Active transport requires
osmosis
energy
a hypotonic solution
a concentration gradient
Which is an example of a hypertonic solution that a human cell could be placed into?
Saltwater
a solution equal to the concentrations of the cell
pure water (no solutes)
Why would a plant cell become wilted in a concentrated sugar solution?
the cell would gain water by the process of osmosis
the cell would lose water by the process of osmosis
the cell would lose water because of active transport
the cell would gain water because of active transport
What type of transport is displayed here?
Active Transport
Facilitated Diffusion
Simple Diffusion
Which direction will water flow in across this semipermeable membrane? The purple molecules are solutes (like salt)
Side A
Side B
What would happen if you gave a patient an IV of pure water?
Nothing will happen to their red blood cells
Their red blood cells would swell and burst
Their red blood cells would shrink and shrivel
What would happen if an animal cell is placed in saltwater?
nothing will happen the cell will be fine
The cell will fill with water and expand causing it to burst
The cell will lose water and shrink causing it to shrivel and die
What type of solution has more molecules outside the cell then inside the cell?
Hypertonic
Hypotonic
Isotonic
What type of solution has less molecules outside then inside the cell?
Hypertonic
Hypotonic
Isotonic
What is it called when large molecules move across the cell membrane from an area of high concentration to an area of low concentration through a protein channel?
Diffusion
Osmosis
Active Transport
Facilitated Diffusion
How does a cell maintain homeostasis?
By controlling what enters and leaves the cell
Flexibility
Protective barrier
Structure and support
The movement of molecules from low to high is known as
simple diffusion
facilitated diffusion
active transport
osmosis
The process in which cells engulf and digest microorganism and/or cellular debris is called...
Endocytosis
Digestion
Eating
Phagocytosis
What is Isotonic?
When comparing two solutions, the solution with the greater concentration.
When the concentration of two solutions is the same.
When comparing two solutions, the solution with the lesser concentration of solutes.
The tendency of an organism or cell to regulate the chemical processes that take place internally so as to maintain health and functioning, regardless of outside conditions.
