Worksheetsquiz 6 biology
Total questions: 47
Worksheet time: 48mins
cell transport=
transport
across
the
membrane
Cell membrane functions
protection
separate
control and homeostasis (balance)
Cell membrane functions
communication
anouncement, alerts, signals
holds the cytoskeleton
What is related with cellular transport?
the cell wall
the cell membrane
chlorophyl
ribosomes
vacuole
mosaic:
many molecules in the membrane of different types and sizes.
(mixed composition)
compounds are in motion, there is also liquid in motion
(movement)
fluid:
many molecules in the membrane of different types and sizes.
(mixed composition)
compounds are in motion, there is also liquid in motion
(movement)
the cell membrane is composed of:
phospholipids
carbohydrates
aminoacids
ATP
Cell membrane
head
tails
tail
non-polar
polar
head
polar molecules
head
tails
hydrophylic
hydrophobic
non-polar molecules
head
tails
hydrophylic
hydrophobic
phospholipids are
(has both hydrophilic and hydrophobic)
(a)
passive transport
simple diffusion
facilitated diffusion
osmosis
molecular transport
doesn't require energy
active transport
molecular transport
exocytosis
endocytosis
osmosis
requires energy
"choose what they need"
selective permeability
hydrophilic
hydrophobic
amphipatic
[ ]
(a)
less solute in the outside
hypertonic
more solute in the inside
hypotonic
same amount of solute
isotonic
passive transport
small molecules (gases)
starts when the concentrations are different
sodium/potasium
passive transport (1)
doesn't requires energy (1)
passive transport (2)
small molecules (2)
active transport (1)
requires energy (1)
active transport (2)
big molecules (2)
Simple diffusion
go with the flow
solute=molecules
small molecules that move side to side and cross the cell membrane
involves a protein
is for water
facilated diffusion
medium molecules:
glucose, nucleotides, aminoacids, ions
molecules go through a protein
transport solutes in an easier way
protein aquaporin
goes with the flow
Osmosis
protein aquaporin
anly for water
does not goes with the flow
goes with the flow
transports solutes
Molecular transport
it is always going to be from the inside to the outside
sodium
it is always going to be from the outside to the inside
potassium
molecular transport=
sodium/potassium pump
true
is powered by ATP anergy
false
goes with the flow
exocytosis
(a)
exocytosis is like (a)
apposite of exocytosis
(a)
endocytosis
wraps the cell and eats it
phagocytsis
cell eats solids
pinocytosis
cell eats liquids
hypertonic
hypotonic
isotonic
molecular transport
exocytosis
endocytosis
DNA
has two helix
one single chain
made of nucleotides
desoxyribonucleic acid
ribonucleic acid
RNA
has two helix
one single chain
made of nucleotides
desoxyribonucleic acid
ribonucleic acid
exosy
(a)
missing oxygen
more stable
no missing oxygen
less stable
DNA
doesn't has oxygen
RNA
has oxygen
AGTC
A stands for
(a)
AGTC
G stands for
(a)
AGTC
T stands for
(a)
AGTC
C stands for
(a)
A
T
T
A
G
C
C
G
nucleotides vary because they are like
(a)
Nucleotides contain
phosphate group (phosphorus)
sugar (carbohydrates)
nitrogen base
carbon
aminoacids
specific sequence of nucleotides that is in a certain region of DNA
(a)
a (a) codes for a especific protein.
a gene is the _____ unit of heredity
physical
functional
basic
first
emviromental
they are super compacted and organized DNA
(a)
its made up of chromatin
(a)
DNA+histones=
(a)
proteins that wrap around DNA
(a)
chromosomes are located in the (a) of the cell
