Open Question
Compare and contrast the following:
a. simple diffusion and facilitated diffusion
b. active transport and facilitated diffusion
c. active transport and group translocation
6. Cell Membrane & Transport
Simple and Facilitated Diffusion
Struggling with Microbiology?
Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
The difference between simple and facilitated diffusion is that facilitated diffusion:
A
Requires a protein transporter.
B
Moves molecules against their concentration gradient.
C
Requires energy.
D
Freely diffuses molecules against their concentration gradient.
Verified step by step guidance1
Understand the concept of diffusion: Diffusion is the movement of molecules from an area of higher concentration to an area of lower concentration. It is a passive process, meaning it does not require energy.
Differentiate between simple and facilitated diffusion: Simple diffusion occurs without the aid of any proteins, allowing molecules to pass directly through the lipid bilayer of the cell membrane.
Explore facilitated diffusion: Facilitated diffusion involves the use of protein transporters or channels embedded in the cell membrane to help specific molecules cross the membrane.
Identify the role of protein transporters: In facilitated diffusion, protein transporters assist molecules that cannot freely pass through the lipid bilayer due to size, polarity, or charge.
Clarify energy requirements: Facilitated diffusion does not require energy because it moves molecules along their concentration gradient, unlike active transport which requires energy to move molecules against their concentration gradient.
5:10mWatch next
Master Simple and Facilitated Diffusion with a bite sized video explanation from Jason
Start learningRelated Videos
Related Practice
Simple and Facilitated Diffusion practice set
Problem sets built by lead tutorsExpert video explanations