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Cell Transport ( Passive and Active) 4.22.15 Flashcards | StudBud
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Cell Transport ( Passive and Active) 4.22.15
Cell Transport ( Passive and Active) 4.22.15
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Covers the basics about cell membranes and cell transport. Made for grade 7 Biology.
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Answers
1
Requires energy; materials enter pockets in cell membrane, then forms vesicle in cytoplasm = ?
exocytosis
phagocytosis
pinocytosis
endocytosis
2
What is the type of energy used in active transport?
ATP
free energy
No energy is used
radiation
3
What kind of transport doesn't require the use of energy to move materials across the membrane?
facilitated diffusion
osmosis
all of these don't require the cell to use energy
diffusion
4
What part of the cell membrane attracts water?
polar bears
non polar heads
bilayer heads
polar heads
5
What type of transport is osmosis?
uncommited
active
uncertain
passive
6
What is concentration?
the weight of a substance
amount of things in a given area
the density of a substance
the amount of mass something has
7
What kind of solution is the red blood cell on the right in?
hypotonic
hydroponic
isotonic
hypertonic
8
How are diffusion and osmosis similar?
both are active transport
both require energy
they are both movement from a higher to lower concentration
both make the cell die
9
Water moves
from low to high concentration
not at all.
at equal rates
from high to low concentrations
10
Another name for the cell membrane is
the plasma membrane
the nuclear membrane
the cell wall
the endocytic barrier
11
"A" is
cholesterol
a nonpolar fatty acid
a polar phosphate
a protein
12
The basic structure of the cell membrane is
a phospholipid bilayer.
a liquid bilayer.
made of proteins.
impermeable.
13
Waste products can be removed from a cell by the process of
endocytosis
exorcism
exocytosis
osmosis
14
A hypertonic solution has a
lower amount of solute
higher amount of water
a higher amount of solutes
a normal amount of solute
15
Water enters, cell swells; lower solute concentration outside the cell than inside = __solution
hydroponic
hypotonic
isotonic
hypertonic
16
The stuff that is dissolved is the _________.
solution
suspension
solute
solvent
17
Which is a type of active transport?
diffusion
osmosis
exocytosis
facilitated diffusion
18
The
PRIMARY
function of the cell membrane is
to control what moves in and out of the cell.
cell signaling.
to protect the cell
to provide support for the cell.
19
What does "iso" mean?
high
equal
uneven
low
20
Each polar head has how many fatty acid tails?
2
1
3
4
21
How can you figure out which side water will travel?
look where there's less solutes
look where there's the most solutes
look where there's no solutes
you can't figure it out
22
Passive transport is defined by
using ATP
using no cell energy
using cell energy
23
What is the official name of the cell membrane?
The Scientific Membrane Model
The Fluid Orange Juice Model
The Cell Membrane Model
Fluid Mosaic Model
24
Hypotonic solutions have a _________water concentration.
equal
higher
lower
25
Can the cell membrane rebuild itself?
yes
no
26
Movement of molecules from an area of high concentration to an area of lower concentration is:
equilibrium
diffusion
osmosis
endocytosis
27
What is the universal solvent?
vinegar
oil
water
corn syrup
28
Water molecules will keep moving until they reach
equilibrium
the point of no return
diffussion
osmosis
29
A cell is in a ____solution when: size doesn't change; water goes in and out at the same rate
isotonic
hydroponic
hypotonic
hypertonic
30
What kind of solution is the red blood cell on the left in?
isotonic
hypotonic
hydroponic
hypertonic
31
What makes up a cell membrane?
all of these
carbohydrates
phospholipids
chlesterol
32
If the solution outside the cell has __________ solute, the fluid is hypotonic to the cell.
equal
more
less
33
Which molecule gives the cell membrane strength and flexibility?
cholesterol
phospolipids
carbohydrates
proteins
34
What does the cell membrane let in?
carbon dioxide
water
waste
nothing
35
Requires energy; vacuole fuses with membrane, contents exit out of cell is ___ ?
pinocytosis
endocytosis
exocytosis
phagocytosis
36
Active transport
all of the answers are correct
moves materials against a concentration gradient
is usually done by transport proteins in the cell membrane
requires energy
37
What is the term used to describe the difference in concentration of molecules in two areas?
focal point
gradient
there is no term
gradual
38
Which way does the lipid tail face?
towards water
away from water
39
Which is a type of passive transport?
osmosis
exocytosis
endocytosis
protein pump
40
Which of these is selectively permeable?
a strainer
a window screen
a cell membrane
all of these are selectively permeable
41
The stuff that does the dissolving is the __________.
solvent
suspension
solution
solute
42
Which cell organelle helps digest food particles brought into a cell by endocytosis?
nucleus
mitochodria
chloroplast
lysosome
43
A random movement by all atoms and molecules is called ____________.
hypomotion
passive motion
brownian motion
hypermotion
44
What molecules are imbedded in the phospholipid bilayer?
ribosomes
nucleic acids
proteins
glucose
45
Which proteins on a cell's surface identify it as self?
enzymes
marker
carrier
receptor
46
What happens if you put salt on a slug?
It stays the same.
It shrinks.
It swells.
47
The tails of the phospholipid bilayer are
water-loving
water-eating
water-fearing
water-liking
48
__________ is the diffusion of water through a semipermeable membrane.
osmosis
active transport
exocytosis
facilitated diffusion
49
What is structure "D"?
a protein
a glucose molecule
a phospholipid
cholesterol
50
What does semipermeable mean?
only water enters
only certain things enter
everything enters
nothing enters
51
Who first discovered osmosis?
Brown
Hooke
Schwann
Dutrochet
52
What is a glycolipid made up of?
sugar and fat
sugar and protein
glycogen and protein
53
Passive transport
doesn't require energy.
requires energy.
moves particles from a low to a high concentration.
moves particles against a concentration gradient.
54
Water leaves, cell shrinks; higher solute concentration outside cell than in is a ___ solution
hypertonic
isotonic
hypotonic
hydroponic
55
What kind of solution is the red blood cell in the middle in?
hypotonic
isotonic
hydroponic
hypertonic
