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Cellular Membranes and Transport Proteins Quiz

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Cellular Membranes and Transport Proteins Quiz

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Questions and Answers

What is the function of transport proteins in the plasma membrane?

To move large molecules using bulk transport

To provide energy for active transport

To control passage across cellular membranes (correct)

To regulate the movement of small molecules

Which of the following is true about the plasma membrane?

It separates the living cell from its surroundings (correct)

It is composed mainly of carbohydrates

It allows all substances to cross it equally

It does not regulate inbound and outbound traffic

Which type of transport requires both energy and a transport protein?

Bulk transport

Active transport (correct)

Passive transport

Endocytosis

What are membranes composed mainly of?

Phospholipids Signup and view all the answers

What type of molecules move in and out of the cell using exocytosis or endocytosis?

Large molecules Signup and view all the answers

Which of the following is NOT a component of cellular membranes?

Nucleic acids Signup and view all the answers

What is the term for the movement of small molecules across the cell membrane without the input of energy?

Passive transport Signup and view all the answers

What type of molecules require transport proteins to move across the cell membrane?

Small molecules Signup and view all the answers

What is the term for the process by which large molecules move in and out of the cell using bulk transport?

Endocytosis Signup and view all the answers

What is the main function of the plasma membrane?

To separate the cell from its surroundings Signup and view all the answers