Study sets matching "membrane"

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Study sets matching "membrane"

14 terms
Membrane
Fluid Mosaic Model
Membrane proteins
Selective permeability
Active transport
Property of a membrane that controls what goes in and out of…
Requires energy to move substances across membrane
Fluid Mosaic Model
Membrane proteins
Membrane
permeable membrane
semi permeable
impermeable
all membranes
lets everything in and out ... eg:cell wall
lets some substances in and blocks out other ... eg. cell membrane
lets nothing in and out of the cell ... eg: cuticle - waxy layer…
cell membrane ... mitochondrial membrane ... chloroplast membrane... n…
permeable membrane
lets everything in and out ... eg:cell wall
semi permeable
lets some substances in and blocks out other ... eg. cell membrane
10 terms
membrane
membrane
tent structure
Net structure
Pneumatic structure
thin, flexible service. Carries blood primarily through the d…
membrane structure pre-stressed by externally applied force i…
A membrane structure having any surface of closely spaced cab…
membrane Structure that this place in tension and stabilized…
membrane
thin, flexible service. Carries blood primarily through the d…
tent structure
membrane structure pre-stressed by externally applied force i…
14 terms
Membrane
Fluid Mosaic Model
Membrane proteins
Selective permeability
Active transport
Property of a membrane that controls what goes in and out of…
Requires energy to move substances across membrane
Fluid Mosaic Model
Membrane proteins
22 terms
Membrane
membrane
General Properties of a phospholipid b…
Phospholipids are permeable to:
Phospholipids are impermeable
composed mainly of phospholipid by layer... - also contains othe…
1. Self assembling in water. 2. Individual molecules are not…
•hydrophobic molecules ... •small molecules... . including water
•large molecules... •ions
membrane
composed mainly of phospholipid by layer... - also contains othe…
General Properties of a phospholipid b…
1. Self assembling in water. 2. Individual molecules are not…
24 terms
Membrane
types of transport(mod18)
Osmosis
Osmoregulation
Tonicity
diffusion: molecules spreading away from point of origin... Hig…
•A specialized type of diffusion involving water.... •Water typi…
•Living organisms must control internal concentration of wate…
measure of water potential of 2 solutions separated by semi p…
types of transport(mod18)
diffusion: molecules spreading away from point of origin... Hig…
Osmosis
•A specialized type of diffusion involving water.... •Water typi…
Membrane
Fluid Mosaic Model
Membrane proteins
Selective permeability
Active transport
Shifting assortment of molecules that make up a plasma membrane
Property of a membrane that controls what goes in and out of…
Requires energy to move substances across membrane. Movement…
Fluid Mosaic Model
Shifting assortment of molecules that make up a plasma membrane
Membrane proteins
26 terms
Membrane
plasma membrane
Plasma membrane
1ST COMPONENT OF MEMBRANES- PHOSPHOLIP…
lipid bilayer
only can be viewed under the electron microscope
3 parts
1) Polar head group ... 2) Linkage derived... from glycerol... (usuall…
plasma membrane
only can be viewed under the electron microscope
Plasma membrane
3 parts
Membrane
Fluid Mosaic Model
Membrane proteins
Selective permeability
Active transport
Property of a membrane that controls what goes in and out of…
Requires energy to move substances across membrane
Fluid Mosaic Model
Membrane proteins
5 terms
Membrane
Serous Membrane
Serous Membrane
Serious membrane
Visceral membrane
Covers the viscera and lines the true body cavities of the tr…
Membrane that lines a cavity without an opening to the outsid…
the layer of a serous membrane that is in contact with an organ
Serous Membrane
Covers the viscera and lines the true body cavities of the tr…
Serous Membrane
31 terms
Membrane
Membrane purpose
Selective permeability
Membrane components
Phospholipid
Selectively permeable boundary between the cell and its envir…
some substances pass easier than others
A phospholipid bilayer that is hydrophobic in the interior. M…
Molecule with phosphate group & glycerol that are hydrophilic…
Membrane purpose
Selectively permeable boundary between the cell and its envir…
Selective permeability
some substances pass easier than others
11 terms
Membrane
Isotonic
Hypertonic
Hypotonic
Exocytosis
solutions with the same solute concentration as that of the c…
solutions having greater solute concentration than that of th…
solutions having lesser solute concentration than that of the…
moves substance from the cell interior to extracellular space
Isotonic
solutions with the same solute concentration as that of the c…
Hypertonic
solutions having greater solute concentration than that of th…
9 terms
Membrane
The cell membrane...
The type of lipid that makes up the ce…
The head of a phospholipid is
The tail of a phospholipid is
separates the internal environment of the cell from the exter…
PHOSPHOLIPID
hydrophilic
hydrophobic (made up of fatty acids)
The cell membrane...
separates the internal environment of the cell from the exter…
The type of lipid that makes up the ce…
PHOSPHOLIPID
23 terms
Membrane
Membrane
Prokaryotic
Example of prokaryotic cell
Examples of eukaryotic cells
Fundamental to the organization of cell
Has no nucleus
Kingdom monera -bacteria
Protists, plants,fungi,animals
Membrane
Fundamental to the organization of cell
Prokaryotic
Has no nucleus
Membrane
Why are caveolins special?
Simple diffusion
Facilitated diffusion
Primary active transport
Caveolins can do receptor-independent endocytosis. ... Caveolins…
nonpolar compounds only, down concentration gradient.
down electrochemical gradient
against electrochemical gradient driven by ATP
Why are caveolins special?
Caveolins can do receptor-independent endocytosis. ... Caveolins…
Simple diffusion
nonpolar compounds only, down concentration gradient.
Membrane
Water
Solvent
Solute
Solution
Makes up the majority of the cell. Solvent of life.
Liquid medium in a substance
Dissolved w a solvent to make a solution
Combination of solvent and dissolved solutes
Water
Makes up the majority of the cell. Solvent of life.
Solvent
Liquid medium in a substance
47 terms
Membrane
what is a plasma membrane
what is the structure of the plasma me…
what does the phospholipid bilayer loo…
what is another term for the plasma me…
a structure that surrounds all cells and most organelles
made up of a phospholipid bilayer... mostly phospholipids, then…
fluid mosiac model
what is a plasma membrane
a structure that surrounds all cells and most organelles
what is the structure of the plasma me…
made up of a phospholipid bilayer... mostly phospholipids, then…
25 terms
Membrane
Endosymbiotic Theory
Brownian Motion
Diffusion
Diffusion
explains the origin of eukaryotic cells from prokaryotes
particles are always in motion
movement of particles or solutes from high areas of high conc…
particle collisions cause this to happen
Endosymbiotic Theory
explains the origin of eukaryotic cells from prokaryotes
Brownian Motion
particles are always in motion
33 terms
The Membrane
plasma membrane
selectively permeable
phospholipid
amphipathic
separates intracellular from extracellular, composed of phosp…
the plasma membrane allows some substances in and out more ea…
1 phosphate group, 1 glycerol, 2 fatty acid tails (and someti…
both polar and non
plasma membrane
separates intracellular from extracellular, composed of phosp…
selectively permeable
the plasma membrane allows some substances in and out more ea…
Membrane
Channel Protein
Transport Protein
Fluid Mosaic Model
Plasma membrane
Protein acts as a tunnel for larger molecules in facilitated…
A special type of protein that helps a substance across the p…
A fluid structure with a mosaic of proteins embedded in a bil…
A selective permeable phospholipid bilayer forming the bounda…
Channel Protein
Protein acts as a tunnel for larger molecules in facilitated…
Transport Protein
A special type of protein that helps a substance across the p…
Membrane
membranous tissues
boundary layer
cell membrane functions
barrier exchange
surround structure pericardial membrane; epithelial tissues t…
cell membrane (plasmalemma) enclose cells
1. barrier isolates cell (impermeable) chemically, physically…
creates body fluid compartments with different components
membranous tissues
surround structure pericardial membrane; epithelial tissues t…
boundary layer
cell membrane (plasmalemma) enclose cells
24 terms
Membrane
Outside of the cell
phospholipids
cholesterol
protein
protect our cell and determines what goes in and what comes o…
protects our cell determines what goes in and out
the buffer that can increase or decrease fluidity of the cell…
act as receptors, can help transport molecules
Outside of the cell
protect our cell and determines what goes in and what comes o…
phospholipids
protects our cell determines what goes in and out
Membrane
Active transport
Bilayer
Cholesterol
Diffusion
Energy consuming transport of molecules or ions across a memb…
Double layer formed by phospholipids due to the hydrophobic p…
Compound of the sterol type found in most body tissues and al…
Net movement of molecules from a region of high concentration…
Active transport
Energy consuming transport of molecules or ions across a memb…
Bilayer
Double layer formed by phospholipids due to the hydrophobic p…
19 terms
Membrane
Serous
Peritoneum
Pleura
Paericardium
Wet ... Simple squamous... Areolar ... Not exposed
Abdominal caviry
Lungs
Heart
Serous
Wet ... Simple squamous... Areolar ... Not exposed
Peritoneum
Abdominal caviry
28 terms
membrane
lipid
proteins
plasma membrane
Selectively Permeable
Building blocks are fatty acids and glycerol
Building blocks of amino acid
controls what enters and leaves the cell
allow only certain substances to cross freely
lipid
Building blocks are fatty acids and glycerol
proteins
Building blocks of amino acid
19 terms
Membrane
Biological Membrane
Functions of cell membrane
Chemical Composition of Cell Membrane
Phospholipids in cell Membrane... Structure
...
1. Define the boundary of the cell. And Permeable Barrier.... 2.…
Lipids - Phospholipids, Glycolipids, Cholesterol.... Protein... Car…
Amphipathic - Heads are Hydrophilic. Tails are Hydrophobic... Wi…
Biological Membrane
...
Functions of cell membrane
1. Define the boundary of the cell. And Permeable Barrier.... 2.…
Membrane
Endocytosis
Osmosis
Diffusion (Gas)
Isotonic
Active movement of large particles INTO a cell
Passive movement of water through a cell membranes
Movement of particles from an area of high concentration to l…
Solution with EQUAL concentrations of dissolved solids on bot…
Endocytosis
Active movement of large particles INTO a cell
Osmosis
Passive movement of water through a cell membranes
16 terms
Membrane
mucous membrane
example of mucous membrane
serous membrane
parietal membrane
line interior walls of organs and tubes that open to outside…
digestive, respiratory, urinary, and reproductive systems
lines the cavities
line thoracic and abdominopelvic cavity
mucous membrane
line interior walls of organs and tubes that open to outside…
example of mucous membrane
digestive, respiratory, urinary, and reproductive systems
Membrane
mucous
goblet cells
serous
cutaneous
line cavities that communicate with the exterior, including t…
unicellular, makes mucus, found in epithelium of digestive an…
line the sealed, internal devisions of the ventral body cavity
covers the surface of the body
mucous
line cavities that communicate with the exterior, including t…
goblet cells
unicellular, makes mucus, found in epithelium of digestive an…
29 terms
membrane
fluid mosaic model
amphipathic
integral proteins
peripheral proteins
Structural model of the plasma membrane where molecules are f…
A molecule that has both a hydrophilic region and a hydrophob…
proteins embedded in the lipid bilayer of plasma membrane
proteins attached to the membrane surface
fluid mosaic model
Structural model of the plasma membrane where molecules are f…
amphipathic
A molecule that has both a hydrophilic region and a hydrophob…
29 terms
Membrane
microtubules
intermediate filaments
microfilaments
gap junctions
largest, composed of tubulin alpha/beta, composes cilia/flage…
deformable, static
thinnest, flexible, composed of actin subunits, used in cytok…
free passage between cells via connexons
microtubules
largest, composed of tubulin alpha/beta, composes cilia/flage…
intermediate filaments
deformable, static
membrane
fluid mosaic
glycoproteins
carbohydrates
selectively permeability
membranes are composed of phospholipids and proteins
serve as identification cell to cell recognition (immune syst…
significantly involved in cell-cell recognition
membrane is picky about what it lets across
fluid mosaic
membranes are composed of phospholipids and proteins
glycoproteins
serve as identification cell to cell recognition (immune syst…
21 terms
membrane
Adversity
sanction
sovereign
fortification
a bad situation that causes trouble
authorization of something or approval of somthing
nation rules its self
structure or business that is used as defense
Adversity
a bad situation that causes trouble
sanction
authorization of something or approval of somthing
Membrane
Homeostasis
Diffusion
Osmosis
Active Transport
The tendency of an organism or cell to maintain a balanced st…
The movement of particles from an area of higher concentratio…
The diffusion of water across a membrane
The movement of substance across the membrane that requires t…
Homeostasis
The tendency of an organism or cell to maintain a balanced st…
Diffusion
The movement of particles from an area of higher concentratio…
Membrane
cell membrane size
selective permeability
phospholipids
amphipathetic
8nm thick
allows some substances to cross the membrane more easily than…
make up membrane... consists of hydrophilic head and hydrophobic…
have hydrophilic and hydrophobic side
cell membrane size
8nm thick
selective permeability
allows some substances to cross the membrane more easily than…
membrane
plasma membrane
cell membrane
phospholipid bilayer
micelle
protects the cell, controls cytoplasmic contents, gatekeeper,…
phospholipids, proteins, carbohydrates, cholesterol and other…
amphiphilic, polar hydrophilic heads, nonpolar hydrophobic ta…
tails come together to form a droplet- hydrophobic regions aw…
plasma membrane
protects the cell, controls cytoplasmic contents, gatekeeper,…
cell membrane
phospholipids, proteins, carbohydrates, cholesterol and other…
16 terms
Membrane
phospholipid bilayer
selective permeability
concentration gradient
dynamic equalibrium
what plasma membrane is mostly made of
ability of the membrane to let certain things in and keep oth…
a concentration difference between two areas
there is no gradient even though molecules are still moving
phospholipid bilayer
what plasma membrane is mostly made of
selective permeability
ability of the membrane to let certain things in and keep oth…
Membrane
Membrane
Cytoplasm
Nucleus
ER
Controls the movement on substances in and out of the cells.…
Responsible for giving the cell its shape,helps to fill out t…
Made with a double membrane keeps the entire organelle enclos…
Folds protein molecules in sacs, and transports synthesized p…
Membrane
Controls the movement on substances in and out of the cells.…
Cytoplasm
Responsible for giving the cell its shape,helps to fill out t…
13 terms
Membrane
Facilitated Diffusion
Osmosis
Diffusion
Isotonic
diffusion of molecules assisted by proteins channels that pie…
diffusion of water molecules across a semipermeable membrane…
movement of dissolved molecules in a fluid or gas from a from…
solution that has an equal concentration of dissolved particl…
Facilitated Diffusion
diffusion of molecules assisted by proteins channels that pie…
Osmosis
diffusion of water molecules across a semipermeable membrane…
Membrane
Types of Lipids in the Membrane
Intergral Proteins
Peripheral Proteins
Lipid Anchor Proteins
phosphoglycerol, sphingolipids, steroids
fully or partially inserted in membrane... -alpha helix, can be…
bind to intergral proteins... bing to membrane surface without e…
sits on outside of cell... -ie- GPI... fatty acid binding to protei…
Types of Lipids in the Membrane
phosphoglycerol, sphingolipids, steroids
Intergral Proteins
fully or partially inserted in membrane... -alpha helix, can be…
7 terms
Membrane
Phospholipid
Advantages of the fluid mosaic model
Crossing the mebrane
Endocytosis
Polar, Two fatty acid chains (one saturated, one unsaturated)…
Movement of the cell, Movement of molecules and Protein confo…
The cell membrane is selectively permeable. Osmosis (water) (…
(take it up) Cell membrane invaginates, pinches in, creates v…
Phospholipid
Polar, Two fatty acid chains (one saturated, one unsaturated)…
Advantages of the fluid mosaic model
Movement of the cell, Movement of molecules and Protein confo…
31 terms
Membrane
Glycocalyx
molecule can diffuse if:
Endrocrine signaling
Chemical signaling
suger coating, carborhydrate and cell to cell recognition
lipid soluble, pass through a protein channel, assisted by ca…
hormone released into blood, target cells have receptors for…
ligand gated, G-protein coupled receptors, intracellular rece…
Glycocalyx
suger coating, carborhydrate and cell to cell recognition
molecule can diffuse if:
lipid soluble, pass through a protein channel, assisted by ca…
5 terms
Membrane
Membranes
Mucus Membrane
Serous Membrane
Cutaneous Membrane
Made of ET and CT
Loc: lines places that are open to the external enviroment... St…
Loc: Line sealed inner cavities, parietal & visceral... Str: Usu…
Loc: Skin... Str: Stratified squamous ET in epidermis, loose CT…
Membranes
Made of ET and CT
Mucus Membrane
Loc: lines places that are open to the external enviroment... St…
10 terms
Membrane
active transport
ATP = Adenosine Triphosphate
Endocytosis
Exocytosis
substance moves through a protein channel across the membrane…
Adenosine plus three phosphate molecules.
material is engulfed by the cell and taken in
when cells release the bubble of material to outside material
active transport
substance moves through a protein channel across the membrane…
ATP = Adenosine Triphosphate
Adenosine plus three phosphate molecules.
11 terms
Membrane
Diffusion
Osmosis
Isotonic
Hypertonic
No energy required ... High to low until Equilibrium reached... Onc…
No energy ... High to low
Water moves back and fourth across membrane, no net movement…
Greater concentration outside cell... Water moves out and cell w…
Diffusion
No energy required ... High to low until Equilibrium reached... Onc…
Osmosis
No energy ... High to low
17 terms
Membrane
Active transport
Passive transport
Osmosis
Diffusion
Transport that does require energy; goes against the gradient
Transport that does not require energy; goes with gradient
The diffusion of water across the plasma membrane
The tendency of molecules to spread out evenly in space
Active transport
Transport that does require energy; goes against the gradient
Passive transport
Transport that does not require energy; goes with gradient
6 terms
Membrane
Transmembrane proteins
Interior Protein Network
Carrier Proteins
Channel proteins
Carriers, Channels, and receptors belong to the group of ____…
Spectrins and Clathrins belong to the ________
__________ transport molecules across membrane against gradient
Facilitate the passive diffusion of molecules across the me…
Transmembrane proteins
Carriers, Channels, and receptors belong to the group of ____…
Interior Protein Network
Spectrins and Clathrins belong to the ________
5 terms
membrane
visceral
serous membrane
outer layer
inner layer
internal organs
two layers, covers organs
parietal
visceral (lines organs)
visceral
internal organs
serous membrane
two layers, covers organs
Membrane
Epithelial membranes
Mucous membrane
Serous membrane
Synovial membrane
The combination of an epithelial layer and in underlying conn…
Line body cavities that open to the outside
Line cavities that do not open directly to yhe outside
Line joints
Epithelial membranes
The combination of an epithelial layer and in underlying conn…
Mucous membrane
Line body cavities that open to the outside
19 terms
MEMBRANE
4 types of membranes
Cutaneous membranes
Mucous membranes
digestive tract
1. Cutaneous membranes... 2. Mucous membranes... 3. Serous membrane…
Skin; covers the entire body and is made up of squamous epith…
Typically consist of columnar epithelial cells; Produce a muc…
opens via the mouth and anus
4 types of membranes
1. Cutaneous membranes... 2. Mucous membranes... 3. Serous membrane…
Cutaneous membranes
Skin; covers the entire body and is made up of squamous epith…
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