Unit 3 Flashcards
What lipid is cell membranes made from?
Phospholipid bilayer.
What molecules can go through this phospholipid bilayer?
H2O, lipids and non charged molecules.
What defines how a H2O, lipids and no charged (penatrating) movement?
The concentration gradient.
What is the concentration gradient?
What is the difference between extracellular and cytoplasm fluid?
Extra is outside, and cytoplasm is the inside of a cell membrane.
What are the six types of functions of membrane proteins in cell membranes.
Channel\carriers, allows for certain molecules to enter and leave the cell.
Receptors, allows the cell to respond to harmones and neurotransmitters.
Junction protein, connects cells together.
Integrin, apes cells to attach to the cytoskeleton and extracellular matrix.
Can act as enzyme.
Glycoprotein and glycolipids allows cells to recognize each other and recognize foreign cells.
What stiffens the cell membrane?
Cholesterol.
Draw out the cell membrane and lable the 10 parts.
Phospholipid, carbohydrates, recognition protein, cholesterol, receptors proteins, binding site, glycoprotein, transportation protein.
What type of membrane proteins allows the cell to respond to hormones and neurotransmitters?
Receptors.
What type of membrane protein connects cells together?
Junction protein.
What membrane protein allows for cells to attach to the cytoskeleton and extracellular matrix?
Integrin protein.
What can membrane act as?
Enzymes.
What are the six main functions of cell membranes?
Selective transport channel,
Enzyme,
Cell surface receptors,
Cell surface identity marker,
Attach to the cytoskeleton.
What protein allows for the cell to recognize each other and foreign cells?
Glycoprotein and glycolipids.
Glycolipids connect to phospholipid bilayer.
