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Study sets matching "structure function biology 101 membrane"

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Study sets matching "structure function biology 101 membrane"

40 terms
Biology 101 - Membrane Structure and Function
amphipathic molecules
phospholipid
fluid mosaic model
freeze-fracture
have dual functions
most abundant molecule in plasma membrane, has hydrophilic he…
states that membrane is fluid structure with a "mosaic" of va…
specialized preparation technique that splits a membrane alon…
amphipathic molecules
have dual functions
phospholipid
most abundant molecule in plasma membrane, has hydrophilic he…
42 terms
biology 101 Chapter 5. Membrane Structure and Function
active transport
adhesion junction
aquaporin
bulk transport -
-Use of a plasma membrane carrier protein to move a molecule…
-Junction between cells in which the adjacent plasma membrane…
- Channel protein through which water can diffuse across a me…
Movement of substances, usually large particles, across the p…
active transport
-Use of a plasma membrane carrier protein to move a molecule…
adhesion junction
-Junction between cells in which the adjacent plasma membrane…
36 terms
Biology 101 - Chapter #4 - Membrane Structure and Function
Plasma Membrane
Glycocalyx (Plasma Membrane)
Plasma Membrane Proteins
Peripheral Protein
- Regulates the entrance and exit of molecules into and out o…
Fuzzy appearance of the cell due to carbohydrate chains on mo…
- Peripheral Protein... - Integral Proteins (Transmembrane)
- Can be found on the inside or on the outside of the membran…
Plasma Membrane
- Regulates the entrance and exit of molecules into and out o…
Glycocalyx (Plasma Membrane)
Fuzzy appearance of the cell due to carbohydrate chains on mo…
37 terms
Biology Membrane Structure and Function
selective permeability
amphipathic
fluid mosaic model
integral protein
a property of biological membranes that allows them to regula…
having both a hydrophilic region and a hydrophobic region
the currently accepted model of cell membrane structure, whic…
a transmembrane protein with hydrophobic regions that extend…
selective permeability
a property of biological membranes that allows them to regula…
amphipathic
having both a hydrophilic region and a hydrophobic region
36 terms
Biology: Structure and function of plasma membrane
Plasma Membrane Component:
Plasma Membrane Structure is made of
1)Integral proteins:
2)Peripheral proteins:
1)Phospholipid: 40%... 2)Cholesterol:... 3)Proteins: 50%... 4)Carbohyd…
1)Lipid bilayer... Hydrophobic tail... Hydrophilic head... 2)Mosaic fl…
Single pass or multiple pass... Full pass or partial pass... Alpha…
no membrane pass
Plasma Membrane Component:
1)Phospholipid: 40%... 2)Cholesterol:... 3)Proteins: 50%... 4)Carbohyd…
Plasma Membrane Structure is made of
1)Lipid bilayer... Hydrophobic tail... Hydrophilic head... 2)Mosaic fl…
16 terms
Biology: membrane structure and function
Cell recognition protein
Receptor proteins
Channel protein
Enzymatic proteins
Carbohydrates sugar coat the cell. Similar to a human fingerp…
Bind to chemical messengers with specific shape. Immune syste…
Passage for insoluble molecules and ions to pass freely throu…
Catalysts that speed up or slow down chemical reactions. Carr…
Cell recognition protein
Carbohydrates sugar coat the cell. Similar to a human fingerp…
Receptor proteins
Bind to chemical messengers with specific shape. Immune syste…
37 terms
Biology Membrane Structure and Function
selective permeability
amphipathic
fluid mosaic model
integral protein
a property of biological membranes that allows them to regula…
having both a hydrophilic region and a hydrophobic region
the currently accepted model of cell membrane structure, whic…
a transmembrane protein with hydrophobic regions that extend…
selective permeability
a property of biological membranes that allows them to regula…
amphipathic
having both a hydrophilic region and a hydrophobic region
15 terms
Biology 101 - Lesson 5: Cell Membrane Structure and Function
Which statement describes the process…
Water moves across a membrane toward a…
Which of the following types of membra…
Which of the following is an energy-re…
movement of molecules down their concentration gradient
False.
receptor proteins
receptor-mediated endocytosis
Which statement describes the process…
movement of molecules down their concentration gradient
Water moves across a membrane toward a…
False.
24 terms
biology: membrane structure and function
Fluid Mosaic Model
selective permeability
passive transport
concentration gradient
description of the membrane structure- mosaic of a diverse mo…
•allows some but not all materials to cross... • enables cell th…
•no energy required ... • the diffusion of a substance across an…
•particles moving from higher to lower concentration ... •higher…
Fluid Mosaic Model
description of the membrane structure- mosaic of a diverse mo…
selective permeability
•allows some but not all materials to cross... • enables cell th…
106 terms
Biology - Membrane Structure and Function
isolates cell environment, regulates e…
chemical environment
lipids
phospholipids
functions of the plasma membrane
the plasma membrane regulates the _______ ______ in a cell
what are membranes made of?
molecules which can form membranes naturally
isolates cell environment, regulates e…
functions of the plasma membrane
chemical environment
the plasma membrane regulates the _______ ______ in a cell
48 terms
BIOL 101 Chp 7: Membrane Structure and Function
selective permeability
amphipathic
fluid mosaic model
integral protein
property of the plasma membrane that allows some substances t…
a molecule having both a hydrophilic region and a hydrophobic…
describes how a plasma membrane is a fluid structure with a v…
a transmembrane protein that penetrates the hydrophobic core…
selective permeability
property of the plasma membrane that allows some substances t…
amphipathic
a molecule having both a hydrophilic region and a hydrophobic…
68 terms
Membrane Structure and Function: Biology
selective permeability
lipids, proteins, carbohydrates
amphipathic
fluid mosaic model
the plasma membrane exhibits this; it allows some substances…
main parts of membranes
it has both a hydrophilic region and a hydrophobic region; ex…
membrane is a mosaic of protein molecules bobbing in a fluid…
selective permeability
the plasma membrane exhibits this; it allows some substances…
lipids, proteins, carbohydrates
main parts of membranes
77 terms
Biology: Membrane Structure and Function
some things can easily pass through it
oxygen, carbon dioxide, and other SMAL…
glucose and the large polar, water-sol…
channel proteins
the plasma membrane is a selectively permeable membrane, what…
What can cross the membrane
What can't cross the membrane easily?
how does water pass through the membrane?
some things can easily pass through it
the plasma membrane is a selectively permeable membrane, what…
oxygen, carbon dioxide, and other SMAL…
What can cross the membrane
42 terms
Biology: Membrane Structure and Function
Amphipathic Molecule
Fluid Mosaic Molecule
Selective Permeability
Integral Protein
Has both a hydrophilic region and a hydrophobic region.
Fluid membrane with a mosaic of proteins embedded in the bila…
Some substances may cross through a membrane easier than othe…
Penetrates the hydrophobic core of the lipid bilayer.
Amphipathic Molecule
Has both a hydrophilic region and a hydrophobic region.
Fluid Mosaic Molecule
Fluid membrane with a mosaic of proteins embedded in the bila…
67 terms
Biology Membrane Structure and Function
selective permeability
amphipathic
fluid mosaic model
integral protein
a property of biological membranes that allows them to regula…
having both a hydrophilic region and a hydrophobic region
the currently accepted model of cell membrane structure, whic…
a transmembrane protein with hydrophobic regions that extend…
selective permeability
a property of biological membranes that allows them to regula…
amphipathic
having both a hydrophilic region and a hydrophobic region
Biology Membrane Structure, Function
The fluid mosaic structure of cell mem…
Four functions of membrane proteins.
How membranes exhibit selective permea…
The structure of phospholipid molecule…
The fluid mosaic structure are the phospholipids and choleste…
1) Cell signaling.... 2) Selective transport.... 3) Excretion of wa…
Membranes exhibit this because non-polar items can easily pas…
The phospholipids make a membrane because the tails hydrophob…
The fluid mosaic structure of cell mem…
The fluid mosaic structure are the phospholipids and choleste…
Four functions of membrane proteins.
1) Cell signaling.... 2) Selective transport.... 3) Excretion of wa…
26 terms
Biology: Membrane Structure and Function
What two major types of biological mol…
How many different protein molecules a…
When a carbohydrate chain is attached…
When a carbohydrate is attached to a p…
lipids and protein
Three. Small surface protein, membrane-spanning protein, and…
Glycoprotein
Glycolipid
What two major types of biological mol…
lipids and protein
How many different protein molecules a…
Three. Small surface protein, membrane-spanning protein, and…
23 terms
Biology - Membrane Structure and Function
differentially permeable
concentration gradient
Cholesterol
What are the most common lipids found…
certain substances can move across the membrane while others…
a measurement of how the concentration of something changes f…
lipid found in the animal plasma membrane. Helps modify the f…
A) cholesterol... B) Glycolipids ... C) phospholipids
differentially permeable
certain substances can move across the membrane while others…
concentration gradient
a measurement of how the concentration of something changes f…
15 terms
Bio 101: Membrane Structure & Function
Plasma Membrane
Fluid Mosaic Model Of The Plasma Membr…
Membrane Proteins
Major Functions Of Membrane Proteins
Substance to cross... Primary of phosopholpids
Fluid... Mosaic
Determine membrane functions... Penetrate the hydrophobic ... Attac…
Transport ... Enzyme Activity ... Signal transduction ... Cell 2 Cell…
Plasma Membrane
Substance to cross... Primary of phosopholpids
Fluid Mosaic Model Of The Plasma Membr…
Fluid... Mosaic
17 terms
Membrane Structure and Function -- Biology
Learning Targets
Phospholipid
Protein
Cholesterol
- Membrane structure indicated its function to control what g…
- Barrier... - Polar head and functions... - Forms an impermeable b…
- Transport... - Many shapes and functions... - Selectively permeable
- Fluidity: Controls in membrane... - Keeps tails from getting t…
Learning Targets
- Membrane structure indicated its function to control what g…
Phospholipid
- Barrier... - Polar head and functions... - Forms an impermeable b…
Biology Membrane Structure and Functions
What function of normal membranes is i…
describe the fluid mosaic model
they consist of lipid molecules in whi…
what are mosaic of proteins involved in?
People with CF the water is retained within the cell and mucu…
the lipid and protein molecules membranes consist of are free…
composition of membranes
transport, attachment, and enzymes
What function of normal membranes is i…
People with CF the water is retained within the cell and mucu…
describe the fluid mosaic model
the lipid and protein molecules membranes consist of are free…
25 terms
Biology: Membrane Structure and Function
selective permeability
diffusion
concentration gradient
passive transport
a property of biological membranes that allows them to regula…
Movement of molecules from an area of higher concentration to…
Gradual decrease in concentration over a distance. High conce…
the diffusion of a substance across a membrane without energy
selective permeability
a property of biological membranes that allows them to regula…
diffusion
Movement of molecules from an area of higher concentration to…
14 terms
Biology: membrane structure and function
What is the outer boundary of the cell?
Functions of the plasma membrane
Components of membranes
Orientation of phospholipids
Outer boundary is the cell membrane/cell wall.
1) it separates the contents of the cell from its outside env…
Major ingredients and minor ingredients. Membranes consist of…
Arranged in a bilayer with the hydrophilic heads towards to o…
What is the outer boundary of the cell?
Outer boundary is the cell membrane/cell wall.
Functions of the plasma membrane
1) it separates the contents of the cell from its outside env…
25 terms
Biology: Membrane Structure and Function
selective permeability
diffusion
concentration gradient
passive transport
a property of biological membranes that allows them to regula…
Movement of molecules from an area of higher concentration to…
Gradual decrease in concentration over a distance. High conce…
the diffusion of a substance across a membrane without energy
selective permeability
a property of biological membranes that allows them to regula…
diffusion
Movement of molecules from an area of higher concentration to…
20 terms
Membrane Structure & Function Chapter 5 BIO 101
What are the functions of the cell mem…
What is the fluid mosaic model?
What are the main components of the ce…
Cell membrane
Allow for physical separation between a cell and its external…
The "fluid" part refers to the hydrophobic fatty tails that c…
cholesterol... proteins
What are the functions of the cell mem…
Allow for physical separation between a cell and its external…
What is the fluid mosaic model?
The "fluid" part refers to the hydrophobic fatty tails that c…
49 terms
Membrane structure and Function Campbell Biology
Plasma Membrane
Phospholipids
Amphipathic molecules
Fluid mosaic model
1. Is the boundary that separates the living cell from its su…
1. are the most abundant lipid in the Plasma membrane... 2. Are…
containing hydrophobic and hydrophilic regions
states that a membrane is a fluid structure with a "mosaic" o…
Plasma Membrane
1. Is the boundary that separates the living cell from its su…
Phospholipids
1. are the most abundant lipid in the Plasma membrane... 2. Are…
42 terms
BIO 101 Chapter 7 Membrane Structure and Function
Selective Permeability
Cellular Membrane Structure
Fluid Mosaic Model
Membrane Fluidity
plasma membrane... some substances cross more easily than others…
phospholipids and proteins
membrane- fluid structure... mosaic of various proteins embedded…
Phospholipids in the plasma membrane can move with the bilaye…
Selective Permeability
plasma membrane... some substances cross more easily than others…
Cellular Membrane Structure
phospholipids and proteins
35 terms
Biology: Chapter 5 Membrane Structure and Function
Three components of the Plasma Membrane
Function of the plasma membrane
integral proteins
peripheral proteins
phospholipids, cholesterol, proteins
membranes create separation between the cell and the external…
proteins fully embedded into the plasma membrane... -may protrud…
proteins that only occur on the cytoplasmic side of the membr…
Three components of the Plasma Membrane
phospholipids, cholesterol, proteins
Function of the plasma membrane
membranes create separation between the cell and the external…
11 terms
Biology- cell membrane structure and function
Phospholipid bilayers
Substances that pass through easily
Substances that cannot pass through
Concentration gradient
-polar hydrophilic head loves water... -nonpolar hydrophobic tai…
-Small, uncharged molecules... -Gases
-large molecules... -charged molecules (ions)
A difference in concentration from one area of o another
Phospholipid bilayers
-polar hydrophilic head loves water... -nonpolar hydrophobic tai…
Substances that pass through easily
-Small, uncharged molecules... -Gases
24 terms
AP Biology Membrane Structure and Function
selective permeability
fluid mosaic model
integral protein
integrin
property of biological membranes that allows them to make som…
the plasma membrane is a fluid structure with a "mosaic" of v…
A transmembrane protein with hydrophobic regions that extend…
In animal cells, a transmembrane receptor protein that interc…
selective permeability
property of biological membranes that allows them to make som…
fluid mosaic model
the plasma membrane is a fluid structure with a "mosaic" of v…
46 terms
Cell Biology: Membrane structure and function
phospholipid, protein molecules
organelles
diffusion
osmosis
Membranes consist largely of ______ and ______ _____.
are membrane- bound compartments inside eukaryotic cells
is the movement of ions from a region of higher concentration…
is the movement of water across a selectively permeable membr…
phospholipid, protein molecules
Membranes consist largely of ______ and ______ _____.
organelles
are membrane- bound compartments inside eukaryotic cells
37 terms
AP Biology - Membrane Structure and Function
selective permeability
amphipathic
fluid mosaic model
integral protein
a property of biological membranes that allows them to regula…
having both a hydrophilic region and a hydrophobic region
the currently accepted model of cell membrane structure, whic…
a transmembrane protein with hydrophobic regions that extend…
selective permeability
a property of biological membranes that allows them to regula…
amphipathic
having both a hydrophilic region and a hydrophobic region
35 terms
Cell Biology: Membrane Structure and Function
Key Concepts... Membranes consist...
Key Concepts... Organelles are...
Key Concepts... Diffusion is the...
Key Concepts... Osmosis..
Membranes consist largely of phospholipid and protein molecules
Organelles are membrane-bound compartments inside eukaryotic…
Diffusion is the movement of ions from a region of higher con…
Osmosis is the movement of water across a selectively permeab…
Key Concepts... Membranes consist...
Membranes consist largely of phospholipid and protein molecules
Key Concepts... Organelles are...
Organelles are membrane-bound compartments inside eukaryotic…
63 terms
AP Biology - Membrane Structure and Function
What is the basic structure of a membr…
Why is a membrane good for a cell?
What are the components of a plasma me…
What is cholesterol and what does it do?
Phospholipid bilayer
Compartmentalizes - allows for many processes to occur at onc…
-Proteins, lipids, fibers
-Lipid found in the animal plasma membrane... -Modifies how flui…
What is the basic structure of a membr…
Phospholipid bilayer
Why is a membrane good for a cell?
Compartmentalizes - allows for many processes to occur at onc…
36 terms
chapter 5 bio 101, membrane structure and function
plasma membrane
fluid mosaic model
membrane structure
phospholipids
boundary of cell, regulates movement of substances into and o…
model for membrane structure
lipids- provide structure... proteins- provide a variety of func…
major components, head of phospholipids- has glycerol and pho…
plasma membrane
boundary of cell, regulates movement of substances into and o…
fluid mosaic model
model for membrane structure
48 terms
BIOL 101 Chp 7: Membrane Structure and Function
selective permeability
amphipathic
fluid mosaic model
integral protein
property of the plasma membrane that allows some substances t…
a molecule having both a hydrophilic region and a hydrophobic…
describes how a plasma membrane is a fluid structure with a v…
a transmembrane protein that penetrates the hydrophobic core…
selective permeability
property of the plasma membrane that allows some substances t…
amphipathic
a molecule having both a hydrophilic region and a hydrophobic…
42 terms
SC 101- Chapter 4 "Membrane Structure and Function"
plasma membrane
Fluid-mosaic model
peripheral proteins
intergral proteins
phospholipid bilayer with embedded proteins
membrane is fluid with proteins scattered throughout
located on surface of membrane
located within the membrane and project through bilayer
plasma membrane
phospholipid bilayer with embedded proteins
Fluid-mosaic model
membrane is fluid with proteins scattered throughout
38 terms
AP Biology, Ch. 7-Membrane Structure & Function
active transport
amphipathic molecule
aquaporin
bulk transport
The movement of a substance across a biological membrane agai…
A molecule that has both a hydrophilic region and a hydrophob…
A transport protein in the plasma membrane of a plant or anim…
Mechanism of large molecule (proteins, polysaccharides, parti…
active transport
The movement of a substance across a biological membrane agai…
amphipathic molecule
A molecule that has both a hydrophilic region and a hydrophob…
48 terms
BIOL 101 Chp 7: Membrane Structure and Function
selective permeability
amphipathic
fluid mosaic model
integral protein
property of the plasma membrane that allows some substances t…
a molecule having both a hydrophilic region and a hydrophobic…
describes how a plasma membrane is a fluid structure with a v…
a transmembrane protein that penetrates the hydrophobic core…
selective permeability
property of the plasma membrane that allows some substances t…
amphipathic
a molecule having both a hydrophilic region and a hydrophobic…
21 terms
BV Biology U3: Cell Theory and Membrane Structure and Function
cell
cell theory
cell membrane
eukaryote
basic unit of life
1. all living things are made of cells.... 2. cells are smallest…
1. boundary between cell and environment. 2. regulates what e…
cell has a nucleus ("EU" = true nucleus)
cell
basic unit of life
cell theory
1. all living things are made of cells.... 2. cells are smallest…
38 terms
Chapter 5 for bio 101, membrane structure and function
Plasma membrane
Fluid mosaic model
Membrane structure
Phospholipids
Boundary of cell, regulates movement of substances into and o…
Model for membrane structure
Lipids- provide structure ... Proteins- provide a variety of fun…
Major components ... Head of phospholipid- has glycerol and phos…
Plasma membrane
Boundary of cell, regulates movement of substances into and o…
Fluid mosaic model
Model for membrane structure
87 terms
Biology Chpt 5: Membrane Structure & Function
The plasma membrane is ________________
Amphipathic
The phosphate head of the phospholipid…
Phospholipids
amphipathic
they are hydrophilic (water loving) & hydrophobic
polar, non polar
makeup the bulk of the membrane, molecules & proteins are emb…
The plasma membrane is ________________
amphipathic
Amphipathic
they are hydrophilic (water loving) & hydrophobic
19 terms
Cell biology: Membrane structure and function
What do membranes consist largely of?
What are organelles?
What is diffusion?
nuclear envelope
phospholipid bilayer and protein molecules (receptor, recogni…
membrane-bound compartments inside eukaryotic cells
the movement of ions from a region of higher concentration to…
double-membrane system; pores allow exchange
What do membranes consist largely of?
phospholipid bilayer and protein molecules (receptor, recogni…
What are organelles?
membrane-bound compartments inside eukaryotic cells
57 terms
Bio 101: Chapter 7: Membrane Structure and Function
plasma membrane
selective permeability
amphipathic
fluid mosaic model
The __ is the boundary that separates the living cell from it…
The plasma membrane exhibits __. This allows some substances…
A molecule that has both a hydrophilic region and a hydrophob…
The ___ states that a membrane is a fluid structure with a "m…
plasma membrane
The __ is the boundary that separates the living cell from it…
selective permeability
The plasma membrane exhibits __. This allows some substances…
32 terms
Biology Chapter 11 Plasma Membrane Structure and Function
Plasma Membrane
Extracellular Matrix
ECM Structure
Collagen
-made of phospholipid bilayer with many interspersed proteins…
-ECM (fiber composite)... -structural support... -amount and comp…
-a ground substance formed of gelatinous polysaccharide... -a n…
-more elastic than cellulose ... -forms a flexible extracellula…
Plasma Membrane
-made of phospholipid bilayer with many interspersed proteins…
Extracellular Matrix
-ECM (fiber composite)... -structural support... -amount and comp…
29 terms
Biology 122: Membrane Structure & Function
Amphipathic Molecule
Phospholipid Bilayer
Hydrophilic Regions
Hydrophobic Regions
Has hydrophobic and hydrophilic region.
Starting point to membranes. Hydrophilic and hydrophobic regi…
Part of the phospholipid bilayer that faces the outside and t…
Part of the phospholipid bilayer that faces the inside of the…
Amphipathic Molecule
Has hydrophobic and hydrophilic region.
Phospholipid Bilayer
Starting point to membranes. Hydrophilic and hydrophobic regi…
9 terms
Biology 1107- Membrane Structure and Function
Potassium
Sodium
Active Transport
Passive Transport
in cell
Outside cell
against concentration gradient
with concentration gradient
Potassium
in cell
Sodium
Outside cell
30 terms
Biology Cell Membrane structure and function
Homeostasis
Phospholipid
head
tails
maintenance of stable internal conditions in a changing envir…
is made up of a head and a tail
phosphate
fatty acids
Homeostasis
maintenance of stable internal conditions in a changing envir…
Phospholipid
is made up of a head and a tail
38 terms
AP Biology Membrane Structure and Function
phospholipid bilayer
amphipathic
fluid mosaic model
J. F. Danielli+H. Davson
Molecules that are constituents of the inner bilayer of biolo…
A molecule that has both a hydrophilic region and a hydrophob…
The currently accepted model of cell membrane structure, whic…
one of the scientists who proposed the sandwich model of the…
phospholipid bilayer
Molecules that are constituents of the inner bilayer of biolo…
amphipathic
A molecule that has both a hydrophilic region and a hydrophob…
46 terms
Cell Biology: Membrane structure and Function
membranes
Eukaryotic cells
Diffusion
Osmosis
Consist largely of phospholipic and protein molecules
Organelles are membrane bound compartments inside ____ ____?
The movement of ions from a region of higher concentration to…
the movement of water across a selectively permeable membrane…
membranes
Consist largely of phospholipic and protein molecules
Eukaryotic cells
Organelles are membrane bound compartments inside ____ ____?
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