3.4 vocab quiz

Question 1

Basic structure of biological membranes

Answer 1

phospholipid bilayer

Question 2

Depiction of the plasma membrane as a semifluid phospholipid bilayer with proteins and carbohydrates attached to lipids and/or proteins

Answer 2

Fluid mosaic model

Question 3

A type of membrane protein that is integrated into the hydrophobic region of the membrane.

Answer 3

Intergral membrane protein

Question 4

Protein noncovalently attached to protein or a lipid in the lipid bilayer

Answer 4

peripheral membrane protein

Question 5

Spontaneous movement of molecules and ions from an area of high concentration to an area of low concentration.

Answer 5

Diffusion

Question 6

Movement of water down its concentration gradient.

Answer 6

Osmosis

Question 7

Solution that has a higher solute concentration on one side of a membrane than the other side.

Answer 7

Hypertonic

Question 8

Solution that has a lower solute concentration on one side of a membrane than the other side.

Answer 8

hypotonic

Question 9

Transmembrane proteins assist passive transport of substances that cannot cross the lipid bilayer on their own down their concentration gradient.

Answer 9

Facilitated diffusion

Question 10

Transmembrane proteins move ions or molecules across a membrane against their concentration gradient.

Answer 10

active transport

Question 11

Transporter molecule that move two or more molecules in the same direction across the membrane

Answer 11

symporter

Question 12

A type of transport protein that is an open passageway for the facilitated diffusion of ions or molecules across a membrane.

Answer 12

channel

Question 13

A type of transport protein that binds to their solute and undergoes conformational changes.

Answer 13

transporters

Question 14

Transporter that moves one ion or molecule across the membrane

Answer 14

uniporter