In which of the following do the events of the citric acid cycle occur?

a. cytoplasm
b. mitochondrial inner membrane
c. mitochondrial matrix
d. smooth ER


c. mitochondrial matrix

Biology & Microbiology

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Which of the following hormones requires iodine for its formation?

A. thyroxine B. thyroid-stimulating hormone C. parathyroid hormone D. calcitonin E. All of the answer options are correct.

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Bacterial sexually transmitted diseases include all of the following except  

A.  gonorrhea. B.  syphilis. C.  chlamydia. D.  herpes.

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An adaptive trait is a trait that has

a. mutated. b. survival value. c. decreased in frequency in a population. d. deleterious biological effects. e. the potential to produce variation.

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All of the following are events of early inflammation except

A. capillaries become more permeable, resulting in edema. B. brief vasoconstriction is followed by vasodilation. C. chemical mediators and cytokines are released. D. macrophages appear first and begin phagocytosis. E. exudate and pus can accumulate.

Biology & Microbiology