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What characteristic of biological membranes allows them to act as barriers to diffusion?
What is the main difference between simple diffusion and facilitated diffusion?
How does a selectively permeable membrane affect diffusion?
Why is ATP necessary for active transport?
Which type of membrane transport protein moves two molecules in opposite directions?
How do proteins facilitate active transport?
A cell is placed in a solution containing a high concentration of glucose. Which process will allow glucose to enter the cell without the use of energy?
What factor primarily limits the rate of facilitated diffusion?
Why can small nonpolar molecules undergo simple diffusion through the phospholipid bilayer?
Which sequence of events correctly describes the mechanism of a carrier protein in facilitated diffusion?
Analyze the role of aquaporins in the rapid diffusion of water molecules across the membrane.
Which type of transport is facilitated diffusion classified as?
How does GLUT1 utilize glucose concentration gradients for glucose uptake in erythrocytes?