Biology Flash Cards For Chapter 4Terms

Front 1

Active Transport

Back 1

transfer
of
a
substance
into
or
out
a
cell
from
a
region
of
higher
concentration
by
a
process
that
requires
a
carrier
and
an
expenditure
of
energy.

Front 2

Carrier Protein

Back 2

A
protein
molecule
that
combine
with
a
substance
and
transports
it
through
the
plasma
menbrane.

Front 3

Channel Protein

Back 3

forms
a
channel
to
allow
a
particular
molecule
or
ion
to
cross
plasma
membrane.

Front 4

chlolestral

Back 4

Steriod
that
occurs
in
animal
membranes;
is
known
to
contribrite
to
the
development
of
plaque
on
the
blood
vessel.

Front 5

Concentration Gradient

Back 5

Gradual change in
chemical concentration
from one point to another.

Front 6

Differiently Permeable

Back 6

Having degrees of permeability,the
cell is impermeable
to some substances
and allows others to
pass through at varing
rates.
to some substances and allows others to pass through at varying rates.

Front 7

Diffussion

Back 7

Movement of molecules
from a region higher concentration to a
region of lower
concentration.

Front 8

Endocytosis

Back 8

process at which a
vescicle is formed
at the plasma mem-
brane to bring sub -
stance into the cell.

Front 9

enzymatic Protein

Back 9

Protein that cataylizes
a specific reaction.

Front 10

Exocytosis

Back 10

Process
in
which
an
intracellular
vesicle
fuses
with
the
pla-
sma
mem-
brane
so
that
the
vesicles
content
is
released
outside
the
cell.

Front 11

Facilitated Transport

Back 11

Passive transport
of a substance
into or out of a
cell along a con -
centration gradient
by a process that
requires a carrier.

Front 12

fluid- mosaic model of a membrane structure.

Back 12

proteins form a pat -
tern within the bil -
ayer of lipid mo -
lecules having fluid consistency.

Front 13

glycolipid

Back 13

component
cell
of
cell
mem
branes
com
posed
of
a
hy-
drophilic
head
bonded
to
a
hy-
drophobic
tail.

Front 14

Glycoprotein

Back 14

compound com-
posed of a car-
bohydrate and
combined with
a protein.

Front 15

hypertonic solution

Back 15

solution that
has a higher
concentration
of solute
and a lower
con-
centration
of water
than the cell.

Front 16

hypotonic solution

Back 16

solution that
has a lowe
r con-
centration
of solute
and a higher
concentration
of water than
the cell.

Front 17

Integral protein

Back 17

protein mol-
ecule found
embedded
in and
often span-
ning the
entire width
of the
plasma
membrane
associated
with active
transport cell
recognition,
cell to cell
adhesion.

Front 18

Isotonic Solution

Back 18

One that con-
tains the
same con-
centration
of solute
and water
as the
cell.

Front 19

Osmosis

Back 19

Movement
of
water
from
an
area
of
higer
concentration
of
water
to
an
area
of
lower
con-
centration
of
water
across
an
differentially
permeable
membrane

Front 20

Osmotic Pressure

Back 20

Pressure
generated
and
due
to
water
accross
a
semipermeable
membrane

Front 21

Peripheral Protein

Back 21

Globular
protein
associated
with the
inner surface
of the cell
membrane.

Front 22

Phagocytosis

Back 22

Taking in
of bacteria
and/or
debris by
engulfing;
cell eating.

Front 23

Pinocytosis

Back 23

Taking
in
of
fluid
along
with
dissolved
solutes
by
engulfing;
cell
drinking.

Front 24

Plasmolysis

Back 24

Contraction
of
cell
contents
due
to
lack
of
water

Front 25

Receptor mediated Endocytosis

Back 25

Selective
uptake
of
molecules
into a
cell by
binding
to a
specific
receptor

Front 26

Receptor Protein

Back 26

protein located inside plasma membrane or within the cell that binds to a substance that alters some aspect of the cell.

Front 27

Sodium - Potassuim Pump

Back 27

Transport protein in the plasma membrane that moves sodiun ions out of ans potassium ions into animals cells important in nerve and muscle cells.

Front 28

Solute

Back 28

Substance disolved in a solvent to form a solution.

Front 29

Solvent

Back 29

Fluid, such as water, That dissolves solutes.

Front 30

Tonicity

Back 30

Degree to which the concentration of solute versus solvent causes fluids to move out of cells

Front 31

Turgor pressure

Back 31

Internal that adds strength of a cell and builds up when water moves by osmosis into cell.

Front 32

Active Transport

Back 32

transfer of a substance into or out a cell from a region of higher concentration by a process that requires a carrier and an expenditure of energy.

Front 33

Carrier Protein

Back 33

A protein molecule that combine with a substance and transports it through the plasma menbrane.

Front 34

Channel Protein

Back 34

forms a channel to allow a particular molecule or ion to cross plasma membrane.

Front 35

chlolestral

Back 35

Steriod that occurs in animal membranes; is known to contribrite to the development of plaque on the blood vessel.

Front 36

Concentration Gradient

Back 36

Gradual change in chemical concentration from point to another.

Front 37

Differiently Permeable

Back 37

Having degrees of permeability,the cell impermeable to some substances and allows others to pass through at varying rates.

Front 38

Diffussion

Back 38

Movement of molecules from a region higher concentration to a region of lower concentration.

Front 39

Endocytosis

Back 39

process at which a vescicle is formed at the plasma membrane to bring substance into the cell.

Front 40

enzymatic Protein

Back 40

Protein that cataylizes a specific reaction.

Front 41

Exocytosis

Back 41

Process in which an intracellular vesicle fuses with the plasma membrane so that the vesicles content is released outside the cell.