Place the following in proper sequence regarding activation of the cell-mediated response: (1 ) dendritic cell migrates to lymph node, (2 ) T cells divide rapidly, (3 ) dendritic cell ingests pathogen, (4 ) CD4 and CD8 cells dock with dendritic cell, (5
) dendritic cell presents antigen on its surface.
A) 3, 1, 5, 2, 4 B) 3, 5, 1, 4, 2 C) 5, 3, 1, 2, 4 D) 1, 2, 3, 4, 5 E) 4, 3, 1, 5, 2
Answer: B
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Blood pressure depends on:
a. total blood volume only b. cardiac output only c. degree of arteriole dilation only d. total blood volume and cardiac output only e. total blood volume, cardiac output, and degree of arteriole dilation
Osteoporosis is a condition in which the density of bones is decreased so much that the individual is at a higher risk of fractures. The more calcium in the bones, the better the bone density
Which of the following would produce the greatest increase in bone calcium levels? A) calcitonin injection B) calcitonin receptor blocker C) parathyroid hormone injection D) glucagon receptor blocker
Which of the following is a cell type associated with sexual reproduction in fungi?
A) sporangiospore B) dikaryon C) haustoria D) pneumocyst E) mycorrhiza
THe more the amount of lipids in a molecule the easier it is for that molecule to pass through a plasma membrane (cell membrane).
a. true b. false