Compare and contrast synthesis reactions with decomposition reactions
What will be an ideal response?
Synthesis and decomposition reactions are often the reverse of each other. Synthesis reactions consume energy (are endothermic), whereas decomposition reactions release energy (are exothermic). Synthesis reactions often release water molecules in a process called dehydration synthesis, whereas decomposition reactions often consume water molecules in a process called hydrolysis. Finally, decomposition reactions break large macromolecules into their component monomers, which can then be used in synthesis reactions to build new macromolecules for use by the cell, whereas synthesis reactions utilize component monomers to build larger molecules.
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Which of the following is most true of a viral DNA genome?
A. It is usually composed of unusual bases unique to viruses. B. It uses the same four nitrogenous bases found in prokaryotic and eukaryotic DNA. C. It may have the normal bases found in prokaryotic and eukaryotic DNA, or it may have one or more unusual bases. D. Viruses do not use DNA for their genome.
Hypertonic sucrose can be used to block receptor-mediated endocytosis as it traps clathrin in microcages of sugar. What sides effects would one expect patients to experience from this sort of therapy?
a. This therapy could block excretion of cellular wastes and metabolic by-products, resulting in cell death. b. This therapy could cause patients to be more susceptible to flu or other viruses. c. This therapy could potentially result in hypercholesterolemia if used for a long period of time. d. This therapy could stimulate higher macrophage activity at sites of infection or inflammation.
An acid
A. has a value above 7 on the pH scale. B. is a chemical that takes hydrogen ions from a solution. C. has a value of 7 on the pH scale. D. is a chemical that adds hydrogen ions to a solution. E. All of the answer choices are correct.
Jay has type O blood, and his brother Alon has type AB blood. What are the genotypes of these boys' parents?
a) IAi and IBi b) IAi and IBIB c) IAIA and IBi d) ii and IAIB e) It is not possible to determine the phenotype of the boys' parents from the information provided.