10 Questions
Which type of transport moves molecules from an area of low concentration to an area of high concentration through carrier proteins?
Active transport
What form of active transport involves parts of the plasma membrane forming infoldings or outfoldings?
Cytosis
Which process involves large particles being transported by enclosing them in vesicles made from the cell surface membrane?
Endocytosis
In which process are vesicles fused with the cell surface membrane, releasing their contents outside of the cell?
Exocytosis
Which factor affects the rate of gas exchange by diffusion as it becomes more steep?
Diffusion gradient becomes more steep
What is water potential measured in?
Kilopascal (kPa)
As solutes are added to a solution, what happens to the water potential?
It decreases
What is the contribution of solute to the water potential called?
'Solute potential'
What does active transport require in order to move molecules against their concentration gradient?
ATP
What is the role of vesicles in endocytosis and exocytosis?
Fusing with cell membrane to release contents outside the cell
Test your knowledge on the structure and function of the cell membrane, including extrinsic proteins, glycolipids, cell signaling, and factors affecting permeability. Learn about how specific ligands bind to receptors on the cell surface membrane to produce a cellular response.
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