Bio 2050 - Anatomy and Physiology » Spring 2021 » Chapter 4 Quiz
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Question #1
The folds of the internal membrane of a mitochondrion are called
A.
cisternae.
B.
cristae.
C.
vacuoles.
D.
vesicles.
E.
matrix.
Question #2
Proteins that assist the movement of a substance across the membrane are called ________ proteins.
A.
intercellular attachment
B.
catalytic
C.
cytoskeleton
D.
identification
E.
transport
Question #3
Which is a passive transport process?
A.
Osmosis
B.
Phagocytosis
C.
Receptor-mediated endocytosis
D.
Ion pump
E.
Pinocytosis
Question #4
The lipid that stabilizes the membrane at extreme temperatures and is found in the hydrophobic regions of the bilayer is
A.
the nonpolar tails.
B.
the polar head.
C.
cholesterol.
D.
glycolipid.
E.
glycocalyx.
Question #5
Consider a cell with a total internal solute concentration of 0.9%. Placing the cell in which bath solution would result in creation of the greatest osmotic pressure in the cell?
A.
0.5% NaCl
B.
1.2% NaCl
C.
0.9% NaCl
Question #6
When a cell surrounds a large particle with pseudopodia and then engulfs it, the process is called
A.
phagocytosis.
B.
secondary active transport.
C.
receptor-mediated endopinocytosis.
D.
pinocytosis.
E.
exocytosis.
Question #7
Channel-mediated diffusion is a subtype of
A.
carrier-mediated diffusion.
B.
facilitated diffusion.
C.
active transport.
D.
simple diffusion.
E.
endocytosis.
Question #8
Another name for the intracellular fluid is
A.
interstitial fluid.
B.
cisternae.
C.
cytosol.
D.
intercellular matrix.
E.
cytoplasm.
Question #9
Pinocytosis is the process in which the cell
A.
pumps small solutes against their concentration gradient and out of the cell.
B.
internalizes ("eats") a large solid particle.
C.
internalizes ("drinks") a droplet of interstitial fluid.
D.
splits ("pinches") off a small part of itself to secrete into the extracellular space.
Question #10
An image produced by passing visible light through a specimen is obtained using the
A.
scanning electron microscope.
B.
dissecting scope.
C.
light microscope.
D.
transmission electron microscope.
E.
ocular examination method.
Question #11
The ________ is responsible for forming the outer, limiting barrier of a cell.
A.
centrosome
B.
ribosome
C.
mitochondrion
D.
plasma membrane
E.
peroxisome
Question #12
Proteins that are embedded within, and extend across, the phospholipid bilayer are called ________ proteins.
A.
catalytic
B.
integral
C.
cytoskeleton
D.
peripheral
Question #13
The pigment melanin is a(n)
A.
nutrient.
B.
membrane-bound organelle.
C.
triglyceride.
D.
non-membrane-bound organelle.
E.
inclusion.
Question #14
Diffusion rate is fastest when the concentration gradient is
A.
steepest and temperature is at body temperature.
B.
steepest and temperature is highest.
C.
slightest and temperature is at body temperature.
D.
slightest and temperature is lowest.
E.
slightest and temperature is highest.
Question #15
Which is an active transport process?
A.
Simple diffusion
B.
Bulk filtration
C.
Ion pump
D.
Facilitated diffusion
E.
Osmosis
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