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BIO 169 FINAL EXAM QUESTIONS AND CORRECT ANSWERS

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BIO 169 FINAL EXAM QUESTIONS AND CORRECT ANSWERS

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In clonal selection of B cells, which substance is responsible for determining which
cells will eventually become cloned?


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antigen




The most abundant dietary lipids are


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triglycerides




The second-messenger mechanism of hormone action operates by

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binding to specific receptors and employing the services of G proteins and
cAMP.




How do glucocorticoids enable the body the deal appropriately with stress?


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by increasing blood glucose, fatty acid, and amino acid level and
enhancing blood pressure




Which of the following best describes the body's response to high mean arterial
pressure (MAP)?


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vasomotor and cardioacceleratoy centers INHIBITED; cardioinhibitory
center STIMULATED.




The source of blood carried to capillaries in the myocardium is the


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coronary arteries

,Fat absorption through the plasma membrane of epithelial cells


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occurs by simple diffusion because lipids are able to penetrate the
hydrophobic fatty acid tails within the plasma membrane




The arteries that directly feed into the capillary beds are called


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arterioles




Matching: Main antibody of both primary and secondary immune response


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IgA




Which of the following is NOT associated with the renal corpuscle?


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A. a vasa recta
B. a podocyte
C. an efferent arteriole
D. a fenestrated capillary

, A. a vasa recta




After the segmental (tertiary) bronchus, the next smaller branch of the respiratory
passageway is (are) the


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terminal bronchioles




Which of the following best describes kidney function in older adults (70 years or
older)?


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kidney function decreases due to kidney atrophy




Chemical substancces secreted by cells into the extracellular fluids that travel through
the blood and regulate the metabolic function of other cells in the body are called


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hormones




From the esophagus to the anal canal, the walls of every organ of the alimentary
canal are made up of the same four basic layers. Arrange them in order from the
lumen.

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