WorksheetsPlasma Membrane and Transport Quiz
Total questions: 15
Worksheet time: 8mins
What is the primary composition of the plasma membrane?
Nucleic acids
Phospholipids
Carbohydrates
Proteins
Which type of protein extends across the phospholipid bilayer?
Peripheral proteins
Transmembrane proteins
Cholesterol
Glycolipids
What is the function of cholesterol in the plasma membrane?
Facilitates diffusion
Acts as a receptor
Increases flexibility
Strengthens the membrane
Which of the following is NOT a function of membrane proteins?
Serve as channels
Transport substances
Synthesize ATP
Act as receptors
What is the fluid mosaic model?
A model describing the movement of water across membranes
A model describing proteins embedded in a lipid bilayer
A model describing the solid structure of the membrane
A model describing the rigid structure of the cell wall
What is the primary energy source for active transport?
Glucose
ATP
Oxygen
Carbon dioxide
Which process involves the movement of water across a selectively permeable membrane?
Filtration
Simple diffusion
Osmosis
Facilitated diffusion
What is the role of aquaporins?
Synthesize proteins
Bind glucose
Facilitate water movement
Transport ions
Which type of solution causes a red blood cell to burst?
Neutral
Hypertonic
Hypotonic
Isotonic
What is the function of the sodium-potassium pump?
Pumps Na+ into the cell and K+ out
Pumps Na+ out of the cell and K+ in
Pumps glucose into the cell
Pumps Ca2+ into the cell
Which type of transport does not require energy?
Symport
Passive transport
Vesicular transport
Active transport
What is the main function of ATP in cells?
Act as a structural component
Provide energy for cellular processes
Transport oxygen
Store genetic information
Which of the following is an example of passive transport?
Endocytosis
Exocytosis
Facilitated diffusion
Symport
What is the role of insulin in glucose transport?
Facilitates glucose transport
Breaks down glucose
Converts glucose to glycogen
Inhibits glucose transport
What happens in a hypertonic solution?
Cells maintain their shape
Cells shrink
Cells double in size
Cells burst
