Many vitamins are important ________ of enzymes
A) protein cofactors
B) coenzymes
C) allosteric inhibitors
D) competitive inhibitors
E) activators
B
Bloom's Taxonomy: Comprehension
Section: Basic Chemical Reactions Underlying Metabolism
Learning Outcome: 5.6
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Which molecule represents one of the best examples of a commonly shared signaling pathway connected to memory
in invertebrates and vertebrates?
a. cyclic AMP b. cyclic GMP c. RNA cyclase d. RNA binding protein e. non-responsive binding protein
A factor that lowers the likelihood of success when using IVF is
A) advanced maternal age. B) number of previous failed IVF attempts. C) increased time being infertile. D) All of these are correct.
Which of the following happens in the first stage of the Calvin cycle?
a. RuBP is generated. b. An organic molecule is reduced. c. RuBisCO incorporates carbon dioxide into an organic molecule. d. RuBP incorporates carbon dioxide into an organic molecule.
In a normal mammalian birth, how does the body guarantee that birth proceeds to completion?
A. Via positive feedback -- stretching of the uterus by the descending fetus induces release of oxytocin from the posterior pituitary causing even stronger uterine contractions. B. Via negative feedback -- stretching of the uterus by the descending fetus induces release of FSH and LH from the posterior pituitary causing even stronger uterine contractions. C. Via positive feedback -- stretching of the uterus by the descending fetus induces release of prolactin from the posterior pituitary causing even stronger uterine contractions. D. Via negative feedback -- stretching of the uterus by the descending fetus induces release of prostaglandins from the posterior pituitary causing weaker uterine contractions.