Studied by 10 people
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SJ Singer and Garth L Nicolson
who proposed the fluid mosaic model
Fluid Mosaic Model
explains the structure of the plasma membrane of the anima cells as a mosaic of components
phospholipid
amphipathic, a type of lipid that is the main component of the plasma membrane, includes fats waxes and vitamins
Amphipathic
what do you call something that has hydrophilic and hydrophobic ends
Hydrophilic
ends made up of phosphate group
Hydrophobic
Tail made up of fatty acids
Kink
is the double bond of unsaturated fatty acids that prevents the tight packing of the phospholipids
Rotation
The movement of phospholipids on its own axis
Lateral Diffusion
Refers to the lateral movement of the lipids and proteins found in the membrane
transverse diffusion or flipflop
movement of lipids or protein from one membrane surface into the other
Cholesterol
is inserted between the non-polar chains, and makes up about 20% of the membrane, also helps to make the membrane more rigid
Peripheral Protein
Proteins that can only be found on the surface of the membrane
Integral Protein
protein that can be found across the cell membrane
Glycoprotein
protein molecule with a carbohydrate attached
Carbohydrate
Breaks down into glucose
Globular Proteins
or spheroproteins, spherical proteins that are common
Passive, active, and bulk transport
types of transport across the cell membrane
Passive transport
movement of ions and other molecular substances without the use of external energy
Active transport
process of transferring substances around the cell with the use of energy
Bulk transport
cellular process where large amount of materials are transported
cysts
membrane bound sacs
simple diffusion, facilitated diffusion, filtration , osmosis
types of passive transport
Diffusion
the movement of substances from a region of higher to lower concentration
Size Polarity Charge
Factors that may affect diffusion
Simple diffusion
Diffusion without the use of protein
Facilitated diffusion
transportation of ions through specific transmembrane integral protein
Filtration
separation of solids from liquid and gasses
absorption of nutrients in the body
example of filtration
Osmosis
water molecules move from high water concentration to less
Isotonic, hypotonic, hypertonic
types of the environment of the cell
isotonic
solute concentration is equal to the cell
Hypotonic
Solute concentration is lower than the cell
Hypertonic
Solute concentration is higher than the cell
Phagocytosis
form of endocytosis that involves submerging of large particles
Pinocytosis
form of endocytosis where extracellular fluids and solute are taken into the cell, cell drinking
Receptor-mediated endocytosis
form of endocytosis ideal for bringing more significant substances into the cell
Phagocytosis, Pinocytosis , Receptor-mediated endocytosis
Types of endocytosis
