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Cell Membrane Structure Quiz

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Questions and Answers

What type of molecules can easily cross the cell membrane?

Lipid soluble substances, small gas molecules, water, glucose

What is the term for the movement of materials from the area of low concentration to the area of high concentration?

Active transport

What provides the energy for the uphill movement of materials in active transport?

ATP

What is the term for the process by which the cell membrane takes in materials by infolding in the form of vacuoles?

Endocytosis Signup and view all the answers

What are the two types of endocytosis?

Phagocytosis and pinocytosis Signup and view all the answers

What is the basic chemical composition of the cell membrane?

Lipids and proteins Signup and view all the answers

What is the structure proposed earlier for the cell membrane?

Lipid bilayer sandwiched between inner and outer layers of protein Signup and view all the answers

What is the most accepted model for the structure of the cell membrane?

Fluid Mosaic Model Signup and view all the answers

What is the role of the cell membrane in the movement of materials?

It contains charged pores through which movement of materials takes place, both by active and passive transport Signup and view all the answers

What term is used to describe the property of the cell membrane that allows only selective substances to pass through it?

Differentially permeable or selectively permeable membrane Signup and view all the answers