Cell Membrane Terminology

Question 1

selective of what passes through it

Answer 1

selectively permeable

Question 2

an energy-driven process where membrane proteins transport molecules across cells

Answer 2

active transport

Question 3

a type of membrane transport that does not require energy to move substances across cell membranes

Answer 3

passive transport

Question 4

the process of particles, which are sometimes called solutes, moving through a solution or gas from an area with a higher number of particles to an area with a lower number of particles.

Answer 4

concentration gradient

Question 5

the movement of molecules from an area of high concentration of the molecules to an area with a lower concentration.

Answer 5

diffusion

Question 6

the energy an object has because of its motion

Answer 6

kinetic energy

Question 7

the movement of water through a semipermeable membrane

Answer 7

osmosis

Question 8

molecular weight cut-off, which is a measurement of a membrane’s ability to retain solutes based on their molecular weight

Answer 8

MWCO

Question 9

proteins that move solutes across a cell membrane against their concentration gradient

Answer 9

solute pumps

Question 10

a process by which cells take in fluids and dissolved substances through the cell membrane

Answer 10

pinocytosis

Question 11

a process by which cells engulf and destroy foreign substances, such as bacteria, and remove dead cells

Answer 11

phagocytosis