Multiple Choice
Which of the following is an example of passive transport in cells?
143
views
6. The Membrane
Passive vs. Active Transport
Struggling with General Biology?
Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
Which type of transport across the plasma membrane involves the use of carrier proteins?
A
Simple diffusion
B
Facilitated diffusion
C
Osmosis
D
Active transport
Verified step by step guidance1
Understand the different types of transport across the plasma membrane: simple diffusion, facilitated diffusion, osmosis, and active transport.
Simple diffusion involves the movement of molecules from an area of higher concentration to an area of lower concentration without the use of energy or carrier proteins.
Facilitated diffusion also involves the movement of molecules from an area of higher concentration to an area of lower concentration, but it requires the use of carrier proteins to help transport molecules across the membrane.
Osmosis is the diffusion of water molecules across a selectively permeable membrane from an area of lower solute concentration to an area of higher solute concentration, and it does not require carrier proteins.
Active transport involves the movement of molecules against their concentration gradient, from an area of lower concentration to an area of higher concentration, and requires both energy (usually in the form of ATP) and carrier proteins.
4:18mWatch next
Master Passive vs. Active Transport with a bite sized video explanation from Jason
Start learningRelated Videos
Related Practice
Passive vs. Active Transport practice set
Problem sets built by lead tutorsExpert video explanations