Cell membrane — structure?
Phospholipid bilayer with embedded proteins.
Membrane transport — types?
Diffusion, osmosis, facilitated diffusion, active transport.
Diffusion, osmosis — difference?
Diffusion moves molecules; osmosis moves water.
Cell membrane — key components?
Phospholipid bilayer and embedded proteins.
Diffusion vs Osmosis — difference?
Diffusion: molecules; Osmosis: water movement.
Active transport — energy used?
Yes, requires cellular energy (ATP).
Tonicity — effect on cells?
Determines water movement and cell volume.
Sodium-Potassium Pump — function?
Maintains ion balance and cell potential.
Cell division — primary reasons?
Growth, repair, and reproduction.
Mitosis vs Meiosis — difference?
Mitosis: identical cells; Meiosis: genetic variation.
Answer 10 questions on Cell Membrane and Cell Division Fundamentals.
1. What is the fundamental structure of the cell membrane?
2. What is the name of the active transport mechanism that moves 3 sodium ions out of the cell and 2 potassium ions into the cell, requiring ATP?
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