Which protein classes are not found as membrane proteins?

A. identity markers
B. receptors
C. enzymes
D. transport channels
E. hormones


Answer: E

Biology & Microbiology

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A patient who has an existing heart condition has dental surgery but neglects to inform her dentist of this disorder. She later develops endocarditis as a consequence of the procedure. Which of the following organisms most likely caused endocarditis?

a. Escherichia coli b. Staphylococcus aureus c. Streptococcus mutans d. Pseudomonas aeruginosa

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The muscular tube leading from the pharynx to the stomach is the

A. larynx. B. trachea. C. esophagus. D. glottis. E. bronchus.

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What type of RNA carries the information that specifies a protein?

a. transfer RNA b. ribosomal RNA c. messenger RNA d. double-stranded RNA e. complementary RNA

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The hormone that induces contractions that lead to birth is ____

A. estrogen D. melatonin B. prostaglandin E. progesterone C. oxytocin

Biology & Microbiology