Bio188 Exam 2

A ligand is a a molecule that binds two cells

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Unformatted text preview: 44. A ligand is A) a molecule that binds two cells together a signaling molecule that binds the receptor C) a molecule that stabilizes the 3-dimensional structure of a protein D) the membrane-bound receptor E) the cytoplasmic receptor ® 45. Which RNA carries the amino acids to the ribosome during protein synthesis. A) mRNA B) nuclear RNA C) rRNA D) RNA polymerase <ID> tRNA 46. Trisomies and monosomies can result from accidents that occur during meiosis called ® nondisjunctions. B) mverSlOns. C) reciprocal translocations. D) recombinations. E) acrocentricities. 47. Crossing-over occurs A) between sister chromatids @ between non-sister chromatids C) during anaphase II D) A and C E) B andC 48. The Calvin-Benson cycle (dark reaction) carmot run in the dark because: NADPH +H+is not available B) ATP is in excess C) water is not available D) not enough 0, is made after the light reactions cease E) CO 2 is not available ® Page 9 49. The direct products of the photosynthesis light reactions are: A) glucose, 02, ATP B) ATP, NADPH, C02 C) 02, glucose, NADPH @ ATP, NADPH, 02 E) ATP, glucose, C02 50. Carbon dioxide is generated as a metabolic waste product during: A) the Calvin-Benson cycle @ the citric acid cycle C) glycolysis D) oxidative phosphorylation E) electron transport Page 10...
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This note was uploaded on 10/25/2010 for the course BIO 188 taught by Professor Capco during the Spring '08 term at ASU.

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