Podcast
Questions and Answers
What is the main function of the cell membrane?
What is the main function of the cell membrane?
- Regulating cell division
- Facilitating communication between cells
- Providing structural support to the cell
- Controlling the movement of substances in and out of the cell (correct)
Which component of the cell membrane acts as recognition sites and antigens?
Which component of the cell membrane acts as recognition sites and antigens?
- Phospholipids
- Cholesterol
- Glycoproteins (correct)
- Intrinsic proteins
How do phospholipids contribute to the fluidity of the cell membrane?
How do phospholipids contribute to the fluidity of the cell membrane?
- By forming a bilayer (correct)
- By serving as channels for water-soluble molecules
- By waterproofing the membrane
- By regulating stability
What is the function of cholesterol in the cell membrane?
What is the function of cholesterol in the cell membrane?
Which protein type allows active and passive transport across the cell membrane?
Which protein type allows active and passive transport across the cell membrane?
In which type of protein do diffusion of polar molecules and ions happen?
In which type of protein do diffusion of polar molecules and ions happen?
Which of the following best describes the role of cholesterol in the cell membrane?
Which of the following best describes the role of cholesterol in the cell membrane?
What is the main function of glycoproteins in the cell membrane?
What is the main function of glycoproteins in the cell membrane?
In the context of the cell membrane, what role do carrier proteins play?
In the context of the cell membrane, what role do carrier proteins play?
How does an increase in diffusion gradient affect gas exchange by diffusion?
How does an increase in diffusion gradient affect gas exchange by diffusion?
Which factor contributes to maintaining the fluidity of the cell membrane?
Which factor contributes to maintaining the fluidity of the cell membrane?
What is the primary function of endocytosis in terms of membrane transport?
What is the primary function of endocytosis in terms of membrane transport?
How does water potential change as solutes are added to a solution?
How does water potential change as solutes are added to a solution?
What is the role of surface area in affecting gas exchange by diffusion?
What is the role of surface area in affecting gas exchange by diffusion?
What is measured by water potential in a system?
What is measured by water potential in a system?
What effect does decreasing diffusion distance have on gas exchange through diffusion?
What effect does decreasing diffusion distance have on gas exchange through diffusion?
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