12 Questions
What is the classification of membrane proteins?
Integral and peripheral proteins
What is the primary function of endocytosis?
To uptake large particles or fluid from the extracellular medium
What is the term for the ingestion of large particles such as viruses, bacteria, cells, or debris?
Phagocytosis
What is the term for the release of macromolecules to the exterior of the cell?
Exocytosis
What is an example of receptor-mediated endocytosis?
Uptake of LDL molecule and its receptor
What are the two types of membrane carbohydrates?
glycoproteins and glycolipids
What is the primary function of the cell membrane?
Separating the cytoplasm from its extracellular environment
Which of the following lipid components is prominent in myelin sheaths?
Sphingomyelin
What is the function of the hydroxyl group of cholesterol in the cell membrane?
It faces the aqueous interface and restricts the movement of the phospholipid fatty acids
What is the term used to describe the property of membrane lipids that have both hydrophobic and hydrophilic regions?
Amphipathic
What is the function of the carbohydrate component of the cell membrane?
It is involved in cell signaling and recognition
What is the primary component of the cell membrane that contributes to its selective permeability?
Channels and pumps
Test your knowledge on the importance and structure of cell membranes, including their components, selective permeability, and functions such as exocytosis and endocytosis. Learn about the lipid, protein, and carbohydrate components of cell membranes.
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