Ch 4 Flashcards
Phospholipid bilayer
Hydrophobic tails face inwards hydrophilic heads face surface
Fluid-mosaic model
Part of the membrane structure that makes it flexible and molecules move
Integral proteins
Embedded
Peripheral protein
Inner surface
Membrane structure
Fluid Mosaic model
Phospholipid bilayer
Proteins
Glycoproteins, glycolipids, cholesterol
Lipid molecules
Double layer proteins transport and move
Channel proteins
From channels substances can move across membrane anything that can fit will pass
Receptor proteins
Bind to substances and environment and trigger cell responses
Shaped in such a way that specific molecules combined
Carrier proteins
Transport a specific substance across the cell membrane
Enzymes
Catalyze chemical reactions for cell metabolism
Break molecules apart and join them together and cause chemical reactions
Cell recognition proteins
The MHC or major histocompatibility complex glycoproteins are different for each person
Cells with foreign MHC glycoproteins are attacked by blood cells responsible for immunity
Enzymatic proteins
Capitalize a specific reaction
Glycoprotein
Major histocompatibility complex Glycoproteins are different for each person
Carbon chains
Found an outer surface of the cell recognition protein
Form a sugarcoat glycocalyx or glycoproteins
Immune responses
What produces individual fingerprints
Diversity of carbohydrate chain
Membrane consist of what
Fluid dynamic phospholipid bilayer
What forms a mosaic pattern?
What do mosaic patterns do?
Embedded proteins
Provide structural integrity and perform many functions
What projects from outer surface
What is equalLibrium
The hydrate chains
Molecules diffuse equally in a given space
What is permeability
What is permeable
Allowing some substances to pass through freely while others do not
The plasma membrane
What is passive transport
What does passive transport require
Movement from high concentration to low concentration
No energy…required diffusion and Kinetic Energy
Felicitated diffusion is like…
Passive transport.
Where does water always moves
Smooth ER has no what
What is active transport
Hypertonic solution
Ribosomes
Transports molecules from low concentration to high
What does active transport require
What is exocytosis
Carrier proteins, ATP, and a concentration gradient
Vesicle mediated transport (transports sell products and waste out of the soap by vesicle formation) coming from goilgi apparatus packaged in vesicle
What is Pinocytosis
What is phagocytosis
Liquid or small particle cell drinking
Large particles cell eating
for example white blood cells eating a bacteria
What are vesicles do
What have a hard time moving through cell membrane
Containers that fuse with outer membrane
Charge molecules and ions and macromolecules
What is diffusion
What drives diffusion
What can diffuse freely across cell membrane
Movement of Molecules from an area of high concentration to an area of low concentration
Kinetic Energy
Lipid soluble molecules gases and small water soluble molecules
What is osmosis
What is Osmotic pressure
Diffusion of water across a semi permeable membrane. Due to a number of non-diffusible particles in a solution
Force that causes water to move in a direction
Hypotonic solutions
Hypertonic solutions
Solution that contains less particles then some other solution cause cell to swell or burst
More particles than other solutions causes cell to shrink or crenate
Isotonic solution
What is salute
Solution that contains equal amounts of solute compared to other solutions and have no change
Particles
Carrier proteins are
What is felicitated transport
Active transport
Specific for the molecules they transport
Passive mechanism transport from high to low concentration
Transports against concentration gradient
Passive transport
The sodium potassium pump
Na+
No carrier protein
Involved in active transport of sodium potassium
Has hard time getting through carrier proteins
What is exocytosis
Vesicle containing sell products fuse with plasma membrane
Products are released and vesicle membrane become a part of the plasma membrane
What is endocytosis
What does invaginate mean
An area of the cell membrane is turned inside out and surrounds a substance than pinches off in the form of a vesicle
Turn inside out
Receptor
Mediated specific type of Pinocytosis which occurs in response to a receptor simulation
All cells are not
Membrane phospholipids can
Lysis
Motile
Drift into plasma membrane
Disintegration of a cell by rupture of it cell wall or membrane
Hypotonic animal cells will
Chloroplast helps the process of
What is responsible for membrane transport
Lyse
Photosynthesis
Proteins
Cyanide
Salt
