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57 Cards in this Set
- Front
- Back
cell processes
|
ingestion
digestion absorbstion synthesis respiration egestion secretion movement responce reproduction |
|
what are the cell components?
|
cytoplasym
nucleus cell membrane |
|
what are the components of cytoplasm
|
cytosol
organelles inclusions |
|
cytosol
|
viscuous fluid environment
complex mixture with both colloid and true solution properties mostly water suspended soluable protiens sugars and salts |
|
inclusions
|
nonfuncitoning units
stored chemical substances glycogen granules pigment granules zymogen mucus vacuoles crystals |
|
organelles
|
little organs
have specific functions contain selective permeable membrane specific funcitons are crutial to the cell |
|
plasma membrane
|
a membrane composed of lipid bilayer, with embeded liipids and protiens. protiens move freely in the plane of the membrane
|
|
functions of plasma membrane
|
*maintain the concentration of substances crutial for life
*keep harmful material outside the cell *allows the cell to sense its environment * Gates movement of materials between the cell and its environment |
|
structure of plasma membrane
|
bilayered phospholipids
cholesterol proteins glycocalix |
|
bilayered phospholipids
|
foundaiton of the membrane structure
they are composed of a polar head and nonpolar tail |
|
cholesterol
|
large amounts present in bp
controls the thickness of membrane |
|
proteins
|
give different membranes different characteristic
they form channels to allow movement of materials across the membrane sense the environment attatchment ports for celll |
|
types of membrane proteins
|
integral and peripheral
|
|
integral mem proteins
|
embedded in membrane
projects out into the cytosal and extra cellular space |
|
peripheral mem proteins
|
associate with surface of membrane
usually associated with a integral mem protien |
|
cell processes
|
ingestion
digestion absorbstion synthesis respiration egestion secretion movement responce reproduction |
|
what are the cell components?
|
cytoplasym
nucleus cell membrane |
|
what are the components of cytoplasm
|
cytosol
organelles inclusions |
|
cytosol
|
viscuous fluid environment
complex mixture with both colloid and true solution properties mostly water suspended soluable protiens sugars and salts |
|
inclusions
|
nonfuncitoning units
stored chemical substances glycogen granules pigment granules zymogen mucus vacuoles crystals |
|
organelles
|
little organs
have specific functions contain selective permeable membrane specific funcitons are crutial to the cell |
|
plasma membrane
|
a membrane composed of lipid bilayer, with embeded liipids and protiens. protiens move freely in the plane of the membrane
|
|
functions of plasma membrane
|
*maintain the concentration of substances crutial for life
*keep harmful material outside the cell *allows the cell to sense its environment * Gates movement of materials between the cell and its environment |
|
structure of plasma membrane
|
bilayered phospholipids
cholesterol proteins glycocalix |
|
bilayered phospholipids
|
foundaiton of the membrane structure
they are composed of a polar head and nonpolar tail |
|
cholesterol
|
large amounts present in bp
controls the thickness of membrane |
|
proteins
|
give different membranes different characteristic
they form channels to allow movement of materials across the membrane sense the environment attatchment ports for celll |
|
types of membrane proteins
|
integral and peripheral
|
|
integral mem proteins
|
embedded in membrane
projects out into the cytosal and extra cellular space |
|
peripheral mem proteins
|
associate with surface of membrane
usually associated with a integral mem protien |
|
cell processes
|
ingestion
digestion absorbstion synthesis respiration egestion secretion movement responce reproduction |
|
what are the cell components?
|
cytoplasym
nucleus cell membrane |
|
what are the components of cytoplasm
|
cytosol
organelles inclusions |
|
cytosol
|
viscuous fluid environment
complex mixture with both colloid and true solution properties mostly water suspended soluable protiens sugars and salts |
|
inclusions
|
nonfuncitoning units
stored chemical substances glycogen granules pigment granules zymogen mucus vacuoles crystals |
|
organelles
|
little organs
have specific functions contain selective permeable membrane specific funcitons are crutial to the cell |
|
plasma membrane
|
a membrane composed of lipid bilayer, with embeded liipids and protiens. protiens move freely in the plane of the membrane
|
|
functions of plasma membrane
|
*maintain the concentration of substances crutial for life
*keep harmful material outside the cell *allows the cell to sense its environment * Gates movement of materials between the cell and its environment |
|
structure of plasma membrane
|
bilayered phospholipids
cholesterol proteins glycocalix |
|
bilayered phospholipids
|
foundaiton of the membrane structure
they are composed of a polar head and nonpolar tail |
|
cholesterol
|
large amounts present in bp
controls the thickness of membrane |
|
proteins
|
give different membranes different characteristic
they form channels to allow movement of materials across the membrane sense the environment attatchment ports for celll |
|
types of membrane proteins
|
integral and peripheral
|
|
integral mem proteins
|
embedded in membrane
projects out into the cytosal and extra cellular space |
|
peripheral mem proteins
|
associate with surface of membrane
usually associated with a integral mem protien |
|
glycocalix
|
carb chains that project from the outer extra cellular surface of the membrane
usually attached to mem protiens |
|
what is permeable to membrabe
|
small molecules of water and carbon dioxide
non polar molecules like lipids and steroid hormones |
|
what is impermeable to membrane
|
ions
polar molecules larger than water macro molecule of any type |
|
membrane impermeablity
|
requires specific protiens and mechanisms to transport substances across membrane
|
|
diffusion
|
molecules spread from an area of greater concentration to lesser conc.
|
|
transport protiens
|
gate movement of particles across the membrane
|
|
four ways a substance can move across membrane
|
simple of passive diffusion
facilitated diffusion active transport endo and exocytosis |
|
simple or passive diffusion
|
occurs when a substance moces down the conc gradient and across the membrane with the help of aprotien
|
|
facilitated diffusion
|
specific trasport protiens allow movement down the conc grad across membrane
driving force |
|
active transport
|
use of atp
|
|
exocytosis
|
secretion from cell
|
|
endocytosis
|
movement into cell
|