5 Questions
What is the structure of the plasma membrane?
Consists of two layers of phospholipids with embedded proteins and sugars
What do membrane proteins provide?
Channels for passage of electrolytes and non-lipid soluble substances
What do some membrane protein molecules have attached to the outside of the cell?
Branched carbohydrate molecules
What is the arrangement of the phospholipid bilayer in the plasma membrane?
Hydrophilic heads aligned on the outer surfaces, hydrophobic tails forming a central layer
What do membrane proteins act as for hormones and other chemical messengers?
Receptors (specific recognition sites)
Test your knowledge of cell membrane structure and function with this quiz. Explore the composition of the plasma membrane, including phospholipids, proteins, sugars, and cholesterol, and understand the roles they play in controlling substance passage.
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