Podcast
Questions and Answers
What type of movement involves lipids rotating in place?
What type of movement involves lipids rotating in place?
- Lateral diffusion lipid movement
- Transverse diffusion lipid movement
- Linear lipid movement
- Rotational lipid movement (correct)
Which type of movement involves lipids moving from high concentration areas to low concentration areas without energy input?
Which type of movement involves lipids moving from high concentration areas to low concentration areas without energy input?
- Transverse diffusion lipid movement
- Rotational lipid movement
- Radial lipid movement
- Lateral diffusion lipid movement (correct)
Why is transverse diffusion lipid movement considered the least common type of movement?
Why is transverse diffusion lipid movement considered the least common type of movement?
- It involves hydrophilic heads passing through the hydrophobic core of the membrane (correct)
- It involves lipids rotating in place
- It is thermodynamically favorable
- It requires energy input
Which type of movement involves proteins called flipases using ATP to power the process?
Which type of movement involves proteins called flipases using ATP to power the process?
What keeps lipids together in a membrane as mentioned in the text?
What keeps lipids together in a membrane as mentioned in the text?
What is the term used for the movement of lipids in relation to one another?
What is the term used for the movement of lipids in relation to one another?
What is the primary function of the proteins on the apical surface of a polarized cell?
What is the primary function of the proteins on the apical surface of a polarized cell?
What is the primary role of the spectrin network on the cytoplasmic side of the plasma membrane?
What is the primary role of the spectrin network on the cytoplasmic side of the plasma membrane?
What is the primary function of the lateral proteins in a polarized cell?
What is the primary function of the lateral proteins in a polarized cell?
What is the primary purpose of the selective permeability of the cell membrane?
What is the primary purpose of the selective permeability of the cell membrane?
What is the primary mechanism by which the cell membrane acts as a selective barrier?
What is the primary mechanism by which the cell membrane acts as a selective barrier?
What is the main function of flipases in the membrane?
What is the main function of flipases in the membrane?
How are transmembrane domains typically structured?
How are transmembrane domains typically structured?
What can be inferred about soluble proteins according to the text?
What can be inferred about soluble proteins according to the text?
Which characteristic is associated with insoluble proteins?
Which characteristic is associated with insoluble proteins?
What creates lipid rafts in the membrane?
What creates lipid rafts in the membrane?
How are hydrophobicity plots used in determining protein structure?
How are hydrophobicity plots used in determining protein structure?
Which of the following statements about tight junctions is correct?
Which of the following statements about tight junctions is correct?
According to the fluid mosaic model, what is the primary factor that affects the fluidity of a membrane?
According to the fluid mosaic model, what is the primary factor that affects the fluidity of a membrane?
What is the primary function of cholesterol in a membrane?
What is the primary function of cholesterol in a membrane?
In the FRAP technique, what does the x-axis represent?
In the FRAP technique, what does the x-axis represent?
What is the primary function of the phospholipid bilayer in a membrane?
What is the primary function of the phospholipid bilayer in a membrane?
Which of the following statements about membrane structure is correct?
Which of the following statements about membrane structure is correct?
