11 Jun BIO 302 – Which of the following statements about the electron
Question
47. Which of the following statements about the electron transport chain is incorrect?
a. the electron transfer potential of NADH or FADH2 is converted to phosphoryl –transfer potential of ATP
b. NADH donates electrons to oxygen
c. Electron flow through large transmembrane protein complexes leads to proton transfer across the inner mitochondrial membrane
d. The chemiosmotic hypothesis explains the acceptance of electrons by oxygen
48. The enzyme that catalyzes the formation of ATP from ADP and Pi in the electron transport chain is:
a. amino acyl transferase
b. ATP synthase
c. cytochrome c oxidase
d. NADH-Q oxidoreductase
50. Which of the following statements about lipids are incorrect:
a. triacylglycerols are packaged and transported as chylomicrons in intestinal mucosal cells
b. hormonal controlled lipases hydrolyze triacylglycerols
c. fatty acid oxidation occurs after fatty acids are linked to coenzyme A
d. fatty acids absorbed from mucosal epithelial cells is transported directly into the blood stream for transport to the liver.
e. fatty acid synthesis and degradation consists of reactions that are the reverse of each other
3. The tRNA bearing an amino acid binds to the :
a. codon on the mRNA
b. anticodon on the mRNA
c. codon on the rRNA
d. anticodon on the DNA
7. A polylinker engineered into a cloning plasmid provides:
a. multiple cloning sites for insertion of foreign DNA
b. an origin of replication for plasmid replication
c. sequences for selective markers
d. sequences for antibiotic resistance
10. In order for RNA polymerase to catalyze the synthesis of RNA all the following must be present except for:
a. activated precursors
b. template
c. primers
d. divalent metal ion
13. During DNA polymerase is called a template-directed enzyme because:
a. the polymerase has proof reading ability
b. complementary bases on an existing strand direct the addition of new bases
c. the polymerase requires a primer in order to begin synthesis
d. the polymerase catalyzes a step-by-step addition of bases to the gr
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