with verified answers
_______ are where the cytoplasm of two cells are directly connected;
ions pass between the cells.
A. Desmosomes
B. Tight Junctions
C. Gap Junctions
D. None of the above Ans✓✓✓ C. Gap Junctions
_______ are where two cells are closely associated because their
membranes are joined together.
A. Desmosomes
B. Tight Junctions
C. Gap Junctions
D. None of the above Ans✓✓✓ B. Tight Junctions
________ are membrane-enclosed organelles containing oxidative
enzymes that synthesize plasmalogen.
A. Peroxisomes
B. Lysosomes
C. Ribosomes
D. Cholesterol Ans✓✓✓ A. Peroxisomes
,________ are two adjacent cells attached and linked by cell adhesion
proteins.
A. Desmosomes
B. Tight Junctions
C. Gap Junctions
D. None of the above Ans✓✓✓ A. Desmosomes
__________ is a measure of the osmotic pressure gradient determined
by the water potential between two solutions and determines the
direction of diffusion.
A. Solubility
B. Tonicity
C. Oncotic pressure
D. Hydrostatic pressure Ans✓✓✓ B. Tonicity
A disease with an autosomal recessive inheritance pattern will
____________.
a. Occur in 75% of offspring when the father is homozygous recessive
(aa) and the mother is homozygous dominant (AA)
b. Only affect males
c. Only affect females
d. None of the above Ans✓✓✓ D. None of the above
, A glycoproteins that binds to receptors on the membrane and to
collagen; important for cell adhesion and growth differentiation.
A. Elastin
B. Cell adhesion molecules
C. Fibronectin
D. None of the above Ans✓✓✓ C. Fibronectin
A man has a condition known that is known to be caused by an X-linked
recessive mutation. Genetic testing on the mother of his children
indicates that she has one copy of this recessive allele, but she has no
symptoms of the disease. What is the risk that their sons and daughters
will have the same disease as the father?
a. All sons and daughters will have the disease
b. All sons will have the disease, but the disease will affect only 50% of
the daughters
c. 50% of the sons could have the disease but none of the daughters are
expected to show symptoms
d. None of their sons and daughters could inherit the disease Ans✓✓✓
C. 50% of the sons could have the disease but none of the daughters
are expected to show symptoms
A mitochondrial disorder (that reduces functioning of the
mitochondria) would directly affect which of the following cellular
processes?
a. Insufficient energy production for cellular functions