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Cell Membranes & Cell Transport Flashcards | StudBud
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Cell Membranes & Cell Transport
Cell Membranes & Cell Transport
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Covers the basics about cell membranes and cell transport. Made for grade 10 Biology.
Flashcards
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Questions
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Answers
1
The stuff that does the dissolving is the __________.
solution
solute
suspension
solvent
2
Passive transport
moves particles from a high to a low concentration.
moves particles against a concentration gradient.
requires energy.
doesn't require energy.
3
What is concentration?
the weight of a substance
the amount of mass something has
the density of a substance
amount of things in a given area
4
__________ is the diffusion of water through a semipermeable membrane.
facilitated diffusion
osmosis
exocytosis
active transport
5
Requires energy; materials enter pockets in cell membrane, then forms vacuole in cytoplasm = ?
endocytosis
pinocytosis
phagocytosis
exocytosis
6
What kind of solution is the red blood cell on the right in?
hydroponic
hypotonic
hypertonic
isotonic
7
A cell is in a ____solution when: size doesn't change; water goes in and out at the same rate
isotonic
hypertonic
hypotonic
hydroponic
8
"A" is
a polar phosphate
a nonpolar fatty acid
cholesterol
a protein
9
Requires energy; vacuole fuses with membrane, contents forced out of cell = ?
endocytosis
phagocytosis
pinocytosis
exocytosis
10
Active transport
moves materials against a concentration gradient
requires energy
all of the answers are correct
is usually done by transport proteins in the cell membrane
11
Another name for the cell membrane is
the plasma membrane
the nuclear membrane
the cell wall
the endocytic barrier
12
The stuff that is dissolved is the _________.
solution
solvent
solute
suspension
13
Movement of particles from an area of high concentration to an area of lower concentration is:
endocytosis
osmosis
diffusion
equilibrium
14
Water leaves, cell shrinks; higher solute concentration outside cell than inside = ? solution
hydroponic
isotonic
hypotonic
hypertonic
15
What molecules are imbedded in the bilayer?
ribosomes
glucose
nucleic acids
proteins
16
What is structure "D"?
a phospholipid
a glucose molecule
cholesterol
a protein
17
The basic structure of the cell membrane is
a liquid bilayer.
impermeable.
made of proteins.
a phospholipid bilayer.
18
What kind of solution is the red blood cell on the left in?
isotonic
hypotonic
hydroponic
hypertonic
19
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.
20
Water enters, cell swells; lower solute concentration outside the cell than inside = __solution
hydroponic
hypertonic
isotonic
hypotonic
21
Which of these is selectively permeable?
a strainer
a cell membrane
all of these are selectively permeable
a window screen
22
What kind of solution is the red blood cell in the middle in?
hydroponic
hypertonic
isotonic
hypotonic
23
Equilibrium is reached
only during passive transport.
when particles are evenly distributed through the space.
when movement of particles stops.
at the end of active transport.
24
What kind of transport doesn't require the use of energy to move materials across the membrane?
diffusion
all of these don't require the cell to use energy
facilitated diffusion
osmosis
