Podcast
Questions and Answers
What is the main function of membrane proteins?
What is the main function of membrane proteins?
- Lubrication and protection
- Strengthening the lipid bilayer
- Increasing membrane fluidity
- Anchoring and locomotion (correct)
Which molecule makes the lipid bilayer stronger but less fluid at normal body temperature?
Which molecule makes the lipid bilayer stronger but less fluid at normal body temperature?
- Phospholipids
- Glycolipids
- Proteoglycans
- Cholesterol (correct)
What is the main purpose of membrane carbohydrates?
What is the main purpose of membrane carbohydrates?
- Receptors for ligands (correct)
- Transporting solutes
- Strengthening the lipid bilayer
- Increasing membrane permeability
What type of molecules is the lipid bilayer impermeable to?
What type of molecules is the lipid bilayer impermeable to?
What contributes to the creation of membrane potential?
What contributes to the creation of membrane potential?
What is the structure that surrounds and contains the cytoplasm of a cell?
What is the structure that surrounds and contains the cytoplasm of a cell?
According to the fluid mosaic model, what does the molecular arrangement of the plasma membrane resemble?
According to the fluid mosaic model, what does the molecular arrangement of the plasma membrane resemble?
Which statement best describes the role of some proteins in the plasma membrane according to the fluid mosaic model?
Which statement best describes the role of some proteins in the plasma membrane according to the fluid mosaic model?
In which body compartment do changes in volume occur with iso-, hypo-, and hyper-osmotic fluid?
In which body compartment do changes in volume occur with iso-, hypo-, and hyper-osmotic fluid?
What is the main component of the plasma membrane according to its structure?
What is the main component of the plasma membrane according to its structure?
Which process involves the movement of molecules from an area of low concentration to an area of high concentration using energy from ATP?
Which process involves the movement of molecules from an area of low concentration to an area of high concentration using energy from ATP?
What is the name for the different types of ion channels present in the plasma membrane?
What is the name for the different types of ion channels present in the plasma membrane?
What is the process by which molecules or ions move across a cell membrane from an area of higher concentration to an area of lower concentration without the input of energy?
What is the process by which molecules or ions move across a cell membrane from an area of higher concentration to an area of lower concentration without the input of energy?
Which model describes the molecular arrangement of the plasma membrane resembling a continually moving sea of fluid lipids with a mosaic of many different proteins?
Which model describes the molecular arrangement of the plasma membrane resembling a continually moving sea of fluid lipids with a mosaic of many different proteins?
What is the term for the process by which cells ingest external fluid, macromolecules, and large particles, including other cells?
What is the term for the process by which cells ingest external fluid, macromolecules, and large particles, including other cells?
What is the main function of glycolipids in the plasma membrane?
What is the main function of glycolipids in the plasma membrane?
Which type of molecules is the lipid bilayer impermeable to?
Which type of molecules is the lipid bilayer impermeable to?
What contributes to the creation of membrane potential?
What contributes to the creation of membrane potential?
Which statement best describes the role of cholesterol in the plasma membrane?
Which statement best describes the role of cholesterol in the plasma membrane?
What are the main components of the glycocalyx in the plasma membrane?
What are the main components of the glycocalyx in the plasma membrane?
