15 Questions
Which process describes the random movement of molecules from an area of higher concentration to an area of lower concentration, until they are equally distributed?
Diffusion through channels
Which process requires carrier proteins to transport molecules down their concentration gradient from a region of higher concentration to a region of lower concentration?
Facilitated Diffusion
Which process moves molecules across a selectively permeable membrane against a concentration gradient and requires energy (ATP)?
Active Transport
Which type of ion channels require a signal to open or close them, and allow the passage of ions based on signaling molecules or changes in ionic charge across the membrane?
Chemically gated ion channels
Which process involves the movement of molecules against the concentration gradient and requires energy (ATP)?
Active Transport
Which process involves the movement of charged ions through gated channels that require a signal to open or close them?
Chemically gated ion channels
What is the process where some molecules move across the plasma membrane with the assistance of carrier proteins that transport them down their concentration gradient?
Facilitated Diffusion
Which process moves molecules across a selectively permeable membrane against a concentration gradient, requiring energy (ATP)?
Active Transport
What type of ion channels open when the ionic charge across the membrane changes?
Voltage-gated ion channels
Which process involves the random movement of molecules from an area of higher concentration to an area of lower concentration until they are equally distributed?
Diffusion through channels
Which process describes the movement of molecules from an area of lower concentration to an area of higher concentration?
Active Transport
What type of ion channels open when the ionic charge across the membrane changes?
Voltage-gated ion channels
Which process involves the movement of molecules with the assistance of carrier proteins down their concentration gradient, from a region of higher concentration to a region of lower concentration?
Facilitated Diffusion
What process allows water and dissolved ions to diffuse through gated channels that require a signal to open or close them?
Diffusion through channels
What process involves the random movement of molecules from an area of higher concentration to an area of lower concentration, until they are equally distributed?
Diffusion
Test your knowledge about the different processes by which materials move into and out of the cell. This quiz covers topics such as diffusion, facilitated diffusion, and other methods of cellular transport.
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