14 Questions
Which of the following is a function of the cell membrane?
Compartmentalizing cells and forming barriers between different environments
What is the lipid composition of biological membranes?
Lipids have both hydrophobic and hydrophilic groups
What is the effect of cholesterol on membrane fluidity?
Cholesterol reduces membrane fluidity
Which of the following is NOT a function of plasma membrane proteins?
Attachment to the cytoskeleton
What is the role of the plasma membrane in a living cell?
To control the exchange of materials with the surroundings
What is the term used to describe the property of the plasma membrane that allows some substances to cross it more easily than others?
Selective permeability
Which of the following is a function of cell membranes?
All of the above
What is the main component of cell membranes?
Lipids
What is the role of cholesterol in the cell membrane?
It maintains membrane fluidity
What is the structure of phospholipids in the cell membrane?
One polar head and one nonpolar tail
Which of the following factors affects phase transition temperatures in liquid crystalline phases?
All of the above
Which statement about membrane fluidity is correct?
Membranes rich in unsaturated fatty acids are more fluid
Which of the following is NOT a major function of membrane proteins?
Cell-cell recognition
What is the main function of membrane carbohydrates?
Facilitating cell-cell recognition
Test your knowledge on factors affecting phase transition temperatures in liquid crystalline phases. Explore how the length of acyl chain and the number of double bonds impact the transition temperatures. Assess your understanding of the relationship between molecular structure and phase behavior.
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