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