Multiple Choice
Which of the following statements correctly describes a similarity between simple diffusion and facilitated diffusion?
258
views
6. The Membrane
Simple and Facilitated Diffusion
Struggling with General Biology?
Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
Which of the following is an example of facilitated diffusion?
A
Water moving through aquaporins
B
Carbon dioxide diffusing out of a cell
C
Glucose transport into a cell via a carrier protein
D
Oxygen moving across the cell membrane
Verified step by step guidance1
Facilitated diffusion is a type of passive transport that requires the assistance of a protein to move molecules across the cell membrane.
Identify the molecules involved in each option: water, carbon dioxide, glucose, and oxygen.
Determine which molecules require a protein to assist in their transport across the cell membrane. Water uses aquaporins, glucose uses carrier proteins, while carbon dioxide and oxygen do not require proteins.
Understand that facilitated diffusion is necessary for molecules that cannot pass freely through the lipid bilayer due to size or polarity, such as glucose.
Conclude that glucose transport into a cell via a carrier protein is an example of facilitated diffusion, as it requires a specific protein to assist in its movement across the membrane.
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