Chapter 5 Flashcards
People with this disease experience a progressive impairment of lung and gastrointestinal function
Cystic fibrosis
The protein mutated in CF patients
CFTR
Thin layer of lipids and proteins that serpeares a cell from its surroundings
Plasma membrane
CFTR stands for
Cystic fibrosis transmembrane conductance regulator
Biological membrane components
Lipids and proteins
Two major types of biological membrane lipids
Phospholipids and sterols
Lipid molecules with carbohydrate groups attatched
Glycolipids
Function of the glycocalyx
To protect cells against chemical and mechanical damage
Phospholipids permanently embedded in the phospholipid bilayer
Integral membrane proteins
Used to form channels through the membrane, helping hydrophilic molecules to pass
Transport proteins
depending on the concentration difference moving from high to low concentration
Passive transport
Moved molecules against concentration transport from lower to higher concentration
Active transport
Transport of no polar inorganic gassed and no polar organic molecules
Simple diffusion
Transport of polar and charged molecules
Facilitated diffusion
Forming hydrophilic channels in the cell membrane through which water and ions can pass
Channel proteins