In terms of their chemical structure, cytokines are _______; their function is to serve as _________

A.  
proteins; chemical messengers

B.  
proteins; receptors

C.  
steroids; chemical messengers.

D.  
steroids; receptors.


A

Anatomy & Physiology

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The ________ neurons deliver signals to the muscles, causing the muscles to act

Fill in the blank(s) with correct word

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The predominant transport mechanism of CO2 in blood is by:

A. dissolved CO2 B. carbamino protein complexes C. hemoglobin binding D. HCO3- within red blood cells E. deoxyhemoglobin

Anatomy & Physiology

In the DNA damage response,

A. repair enzymes replace mismatched nucleotides in RNA. B. repair enzymes replace mismatched nucleotides in DNA. C. repair enzymes replace mismatched amino acids in protein. D. more than one codon encodes one type of amino acid.

Anatomy & Physiology

The sternum contains

A) the manubrium. B) the jugular notch. C) the body. D) the xiphoid process. E) All of the answers are correct.

Anatomy & Physiology