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