Podcast Beta
Questions and Answers
What type of substances cannot diffuse through the phospholipid bilayer of cell membranes?
Which type of diffusion involves the assistance of proteins in crossing the phospholipid bilayer?
What are the two types of proteins that enable facilitated diffusion?
Which type of protein allows charged substances like ions to diffuse through the cell membrane?
Signup and view all the answers
How do most channel proteins operate to control the exchange of ions?
Signup and view all the answers
Which process requires energy for the movement of substances against their concentration gradient?
Signup and view all the answers
What is the main function of carrier proteins in facilitated diffusion?
Signup and view all the answers
Why are carrier proteins considered highly specific?
Signup and view all the answers
'Gated' channel proteins control the movement of ions by:
Signup and view all the answers
'Carrier proteins in facilitated diffusion are essential because they:
Signup and view all the answers