Which of the following would result in glycogen synthase deactivation?
a) a decrease in protein phosphatase 1 activity
b) a decrease in glycogen synthase kinase-3 activity
c) activation of PKB
d) the insulin-stimulated activation of the PI 3-kinase-PKB pathway
Ans: a) a decrease in protein phosphatase 1 activity
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Which of the following analogies best illustrates the answer to the following: If sugars contain energy, why do we have to break apart sugars to release energy in order to make the high energy chemical called ATP?
a. electrons of matter b. photons of light c. letters in the word d. books in the library
Lagging strand synthesis is _ (blank) _ because it is replicated with a series of Okazaki fragments.
a. antiparallel b. bidirectional c. semiconservative d. continuous e. discontinuous
Which of the following statements describe a reason ribosomal genes are useful for comparing evolutionary relationships among organisms?
A. It is possible to compare the large subunit genes with the small subunit genes. B. Ribosomes of prokaryotes and eukaryotes are identical. C. There are many differences in these genes, even among closely related species. D. All organisms possess these genes and they can be compared with each other. E. These are the only genes that have been sequenced for every organism on Earth.
NPP is the difference between plant photosynthesis and respiration. Therefore, NPP quantifies the net absorption of what element(s) by living plants?
A. Phosphorus B. Carbon C. Nitrogen D. Oxygen E. Nitrogen, phosphorus, and potassium