Explain why rigor mortis occurs following death. What will be an ideal response?
Concepts to Consider: Lack of oxygen and death result in the cessation of cellular respiration, during
which ATP is produced. ATP is necessary for the release of the cross bridges formed during muscle
contraction. Without ATP production, these bridges cannot be released and muscle relaxation cannot
occur, resulting in extreme muscular rigidity.
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Which variety of plant has a noticeable sporophyte?
a. hornwort b. liverwort c. bryophyte d. horsetail
Helicobacter pylori has been associated with:a
emphysema. b. duodenal ulcers. c. peptic ulcers. d. lung cancer. e. skin infections.
Members of the genus Micrococcus usually exist as ________.
A. irregular clusters B. pairs C. tetrads D. All of the choices are correct.
Which of the following statements would not be true of a favorable binding equilibrium?
(a) The free-energy change is negative for the system. (b) The concentration of the complex remains lower than the concentration of the unbound components. (c) The complex dissociation rate is slower than the rate for component association. (d) The binding energy for the association is large and negative.