Which of the following is required as a cofactor for hemoglobin synthesis?

A) manganese
B) phosphorus
C) zinc
D) copper
E) None of the answers is correct.


Answer: D

Anatomy & Physiology

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The pharyngotympanic (auditory) tube connects the ________ to the nasopharynx

A) external ear B) internal ear C) middle ear D) tympanic membrane (eardrum)

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The figure illustrates keratinization in the epidermis. What layer of the epidermis is "B"?

A. stratum corneum B. stratum spinosum C. stratum granulosum D. stratum basale E. stratum lucidum

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Most of the O2 in the blood is transported as ________.

A. carbonic anhydrase B. dissolved O2 in the plasma C. bicarbonate ions D. oxyhemoglobin

Anatomy & Physiology