Podcast
Questions and Answers
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?
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?
Which process requires carrier proteins to transport molecules down their concentration gradient from a region of higher concentration to a region of lower concentration?
Which process requires carrier proteins to transport molecules down their concentration gradient from a region of higher concentration to a region of lower concentration?
Which process moves molecules across a selectively permeable membrane against a concentration gradient and requires energy (ATP)?
Which process moves molecules across a selectively permeable membrane against a concentration gradient and requires energy (ATP)?
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?
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?
Signup and view all the answers
Which process involves the movement of molecules against the concentration gradient and requires energy (ATP)?
Which process involves the movement of molecules against the concentration gradient and requires energy (ATP)?
Signup and view all the answers
Which process involves the movement of charged ions through gated channels that require a signal to open or close them?
Which process involves the movement of charged ions through gated channels that require a signal to open or close them?
Signup and view all the answers
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?
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?
Signup and view all the answers
Which process moves molecules across a selectively permeable membrane against a concentration gradient, requiring energy (ATP)?
Which process moves molecules across a selectively permeable membrane against a concentration gradient, requiring energy (ATP)?
Signup and view all the answers
What type of ion channels open when the ionic charge across the membrane changes?
What type of ion channels open when the ionic charge across the membrane changes?
Signup and view all the answers
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?
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?
Signup and view all the answers
Which process describes the movement of molecules from an area of lower concentration to an area of higher concentration?
Which process describes the movement of molecules from an area of lower concentration to an area of higher concentration?
Signup and view all the answers
What type of ion channels open when the ionic charge across the membrane changes?
What type of ion channels open when the ionic charge across the membrane changes?
Signup and view all the answers
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?
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?
Signup and view all the answers
What process allows water and dissolved ions to diffuse through gated channels that require a signal to open or close them?
What process allows water and dissolved ions to diffuse through gated channels that require a signal to open or close them?
Signup and view all the answers
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?
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?
Signup and view all the answers
