Glycolysis and the Krebs cycle yield 10 molecules of NADH per molecule of glucose. How many molecules of ATP will be made from them in the electron transport system?
A. 38
B. 36
C. 10
D. 30
E. 2
Answer: D
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In a lysosomal storage disease, the hydrolases of lysosomes are released from the cells, rather than being isolated into vesicles. What is one possible mechanism for this result?
A) A proton gradient within vesicles was not generated. B) The ER was unable to produce lysosomal vesicles. C) Lysosomal enzymes were not phosphorylated in the rER. D) There is a lack of mannose-6-phosphatase activity. E) There is a mutation in all hydrolase genes that results in loss of the signal peptide.
The term "ligase" adds the suffix "-ase" to the Latin root word for
A. gene. B. cut. C. bind. D. work. E. copy-producing.
Transgenic animal disease models are engineered to display disease symptoms similar to those observed in
____________________. Fill in the blank(s) with the appropriate word(s).
The results in the accompanying figure support the conclusion that:
a. natural selection does not occur in guppies.
b. natural selection can occur in guppies within a few generations.
c. predation is not a selective force in determining the average size of guppies.
d. male body weight increased proportionately more than female body weight.
e. in the experimental setting, the guppies produced fewer, larger offspring.