10 Questions
What is the function of transport proteins in the plasma membrane?
To control passage across cellular membranes
Which of the following is true about the plasma membrane?
It separates the living cell from its surroundings
Which type of transport requires both energy and a transport protein?
Active transport
What are membranes composed mainly of?
Phospholipids
What type of molecules move in and out of the cell using exocytosis or endocytosis?
Large molecules
Which of the following is NOT a component of cellular membranes?
Nucleic acids
What is the term for the movement of small molecules across the cell membrane without the input of energy?
Passive transport
What type of molecules require transport proteins to move across the cell membrane?
Small molecules
What is the term for the process by which large molecules move in and out of the cell using bulk transport?
Endocytosis
What is the main function of the plasma membrane?
To separate the cell from its surroundings
Test your knowledge on how the plasma membrane regulates the movement of substances in and out of cells in this quiz on cellular membranes and transport proteins.
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