Plasma Membrane Structure Exam
Questions and Answers 100% Solved
list the 4 specific functions of the plasma membrane - ✔✔physical barrier
selective permeability
electrochemical gradients
communication
plasma membrane is also called the _____ or _____ - ✔✔cell
membrane, plasmalemma
what are the 4 components of the plasma membrane? -
✔✔phospholipids (bilayer)
cholesterol
proteins (integral and peripheral)
carbohydrates
carb chain attached to the membrane phospholipids is called - ✔✔a
glycolipid
carb chain attached to the membrane proteins is called - ✔✔glycoprotein
the two parts of a phospholipid are - ✔✔1. the polar head group
, 2. the nonpolar fatty acid chains (2- sat or unsat)
amphipathic means - ✔✔2 parts- hydrophilic and hydrophobic
the fatty acid chains in a phospholipid are called (abrv) - ✔✔LCFA
long chain fatty acids
hydrophilic head group faces - ✔✔the water based substance (outside)
the chains face - ✔✔the inside, towards each other (away from water)
straight chains are - ✔✔saturated
kinked chains are - ✔✔unsaturated
the outer layer that faces the extracellular compartment is called the -
✔✔E-face
the inner layer that faces the cytoplasm is called - ✔✔P-face
fluidity is important for - ✔✔exocytosis
endocytosis
membrane trafficking
membrane biogenesis
fluidity increases with - ✔✔an increase in temperature
a high number of kinked (unsaturated) fatty acid chains
fluidity decreases with - ✔✔a decrease in temperature
Questions and Answers 100% Solved
list the 4 specific functions of the plasma membrane - ✔✔physical barrier
selective permeability
electrochemical gradients
communication
plasma membrane is also called the _____ or _____ - ✔✔cell
membrane, plasmalemma
what are the 4 components of the plasma membrane? -
✔✔phospholipids (bilayer)
cholesterol
proteins (integral and peripheral)
carbohydrates
carb chain attached to the membrane phospholipids is called - ✔✔a
glycolipid
carb chain attached to the membrane proteins is called - ✔✔glycoprotein
the two parts of a phospholipid are - ✔✔1. the polar head group
, 2. the nonpolar fatty acid chains (2- sat or unsat)
amphipathic means - ✔✔2 parts- hydrophilic and hydrophobic
the fatty acid chains in a phospholipid are called (abrv) - ✔✔LCFA
long chain fatty acids
hydrophilic head group faces - ✔✔the water based substance (outside)
the chains face - ✔✔the inside, towards each other (away from water)
straight chains are - ✔✔saturated
kinked chains are - ✔✔unsaturated
the outer layer that faces the extracellular compartment is called the -
✔✔E-face
the inner layer that faces the cytoplasm is called - ✔✔P-face
fluidity is important for - ✔✔exocytosis
endocytosis
membrane trafficking
membrane biogenesis
fluidity increases with - ✔✔an increase in temperature
a high number of kinked (unsaturated) fatty acid chains
fluidity decreases with - ✔✔a decrease in temperature
