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.
vacuoles.
B.
matrix.
C.
vesicles.
D.
cristae.
E.
cisternae.
Question #2
Proteins that assist the movement of a substance across the membrane are called ________ proteins.
A.
catalytic
B.
identification
C.
intercellular attachment
D.
cytoskeleton
E.
transport
Question #3
Which is a passive transport process?
A.
Osmosis
B.
Phagocytosis
C.
Ion pump
D.
Receptor-mediated endocytosis
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 polar head.
B.
the nonpolar tails.
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.
1.2% NaCl
B.
0.5% 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.
exocytosis.
D.
pinocytosis.
E.
receptor-mediated endopinocytosis.
Question #7
Channel-mediated diffusion is a subtype of
A.
facilitated diffusion.
B.
carrier-mediated diffusion.
C.
endocytosis.
D.
simple diffusion.
E.
active transport.
Question #8
Another name for the intracellular fluid is
A.
cytoplasm.
B.
intercellular matrix.
C.
cisternae.
D.
interstitial fluid.
E.
cytosol.
Question #9
Pinocytosis is the process in which the cell
A.
internalizes ("drinks") a droplet of interstitial fluid.
B.
internalizes ("eats") a large solid particle.
C.
pumps small solutes against their concentration gradient and out of the cell.
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.
light microscope.
B.
scanning electron microscope.
C.
ocular examination method.
D.
dissecting scope.
E.
transmission electron microscope.
Question #11
The ________ is responsible for forming the outer, limiting barrier of a cell.
A.
mitochondrion
B.
peroxisome
C.
centrosome
D.
plasma membrane
E.
ribosome
Question #12
Proteins that are embedded within, and extend across, the phospholipid bilayer are called ________ proteins.
A.
catalytic
B.
integral
C.
peripheral
D.
cytoskeleton
Question #13
The pigment melanin is a(n)
A.
triglyceride.
B.
membrane-bound organelle.
C.
nutrient.
D.
non-membrane-bound organelle.
E.
inclusion.
Question #14
Diffusion rate is fastest when the concentration gradient is
A.
steepest and temperature is highest.
B.
slightest and temperature is lowest.
C.
slightest and temperature is highest.
D.
steepest and temperature is at body temperature.
E.
slightest and temperature is at body temperature.
Question #15
Which is an active transport process?
A.
Facilitated diffusion
B.
Osmosis
C.
Bulk filtration
D.
Simple diffusion
E.
Ion pump
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