5 Questions
What is the arrangement of the phospholipid bilayer in the plasma membrane like?
A sandwich with hydrophilic heads aligned on the outer surfaces and hydrophobic tails forming a central layer
What is the structure of the plasma membrane primarily composed of?
Two layers of phospholipids with embedded proteins and sugars
What role do some membrane proteins play in terms of cell identity?
Act as receptors for hormones and other chemical messengers
What is the main difference between hydrophilic and hydrophobic parts of phospholipid molecules?
The head is electrically charged and water-loving, while the tail has no charge and is water-hating.
What is the function of cholesterol in the plasma membrane?
Present alongside phospholipids in the membrane structure
Test your knowledge on the fundamental structure and functions of cell membranes, including the composition of the plasma membrane, the role of phospholipids, proteins, sugars, and cholesterol, and the regulation of substance passage.
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