Which of the following statements concerning glycolysis is TRUE?
A) The first step of glycolysis involves oxidative phosphorylation.
B) The glycolytic pathway is cyclical.
C) Glucose is activated by substrate-level phosphorylation.
D) Ribulose 5-phosphate is an intermediate of glycolysis.
E) Two NADH molecules are reduced during glycolysis.
C
Bloom's Taxonomy: Comprehension
Section: Carbohydrate Catabolism
Learning Outcome: 5.8
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Which of the following would be considered a transgenic organism?
A. a bacterium that has received genes via conjugation B. a human given a corrected human bloodclotting gene C. a fern grown in cell culture from a single fern root cell D. a rat with rabbit hemoglobin genes E. a human treated with insulin produced by E. coli bacteria
How does sickle cell disease cause death?
a. The malformed red blood cells cannot transport oxygen. b. The malformed red blood cells can block capillaries. c. The malformed blood cells have a higher affinity for CO2 than for oxygen. d. The mutant hemoglobin polypeptide cannot bind O2 due to a change in three amino acids. e. More cells assume the sickle shape as oxygen concentration in the tissues increases.
Protein-coding ORFsare easier to identify in which type of organism?
a. eukaryotes because they have easily identifiable regulatory regions b. eukaryotes because they have fewer introns c. prokaryotes because they have few introns d. eukaryotes because they have more exons e. prokaryotes because they have more exons
Which is another name for bone cells that remain alive even after the extracellular matrix becomes hardened with calcium phosphate crystals?
A. leukocytes B. fibrocytes C. chrondrocytes D. erythrocytes E. osteocytes