Categorize the circumstances under which the same substance (molecule) can be either an electron donor or an electron acceptor
What will be an ideal response?
Answer: Answers should explain that not all molecules are strictly one or the other, and each molecule must be compared to the other in a pair to determine which is the electron acceptor and which is an electron donor.
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Which of the following describes ATP hydrolysis? Select all correct choices
A. exergonic B. spontaneous C. often coupled to a reaction that has a positive ?G
Factors that govern microevolution are rooted in two related phenomena, they are
A. first, introduction of new genetic variation into a population and second, mutations. B. first, altering the prevalence of a given allele or genotype in a population and second mutations. C. first, introduction of new genetic variation into a population and altering the prevalence of a given allele or genotype in a population. D. first, splitting up a population and second migration. E. first, nonrandom mating and second no natural selection.
Human stem cells are valuable in drug development because they can be used to
A) create experimental organisms, such as rats and mice. B) replace experimental animals such as rats and mice. C) grow human embryos in culture, on which drugs can be tested. D) study the latest stages of the disease that would have unfolded if the person hadn't died.
Parenchyma tissue is a component of the ________ tissue system
A) vascular B) dermal C) ground D) epidermal E) phloem