Bio 155 quiz questions chapter 5

Movement of sodium across the cells of the collecting duct relies on which one of the following?

Active Transport

Alcohol has diuretic effects, increasing urine output. By which one of the following is this mediated?

Alcohol inhibits the release of ADH

histamine is released by neutrophils to induce an inflammation response when tissues become damaged. T or F?

False

which immune system cell must be presented w antigen by an antigen-presenting cell such as a macrophage, in order to become appropriately activated

T lymphocyte

Osmotic concentration in the descending limb of the loop of Henle increases as water moves out. T or F?

True

the thymus produces two peptides that function to

aid in the maturation of T lymphocytes

once a prion enters a nerve cell it essentially

becomes self-propagating, causing misfolding of nearby normal proteins

Aldosterone is secreted:

contribute to maintenance of salt balance

The hairpin design of the loop of Henle allows events on one side of the loop to influence the events on the other side, by a process referred to as

countercurrent exchange

Nonsteroid hormones cause the production of ATP from cAMP. T or F?

false

which one of the following hormone pairs is antagonistic

glucagon, insulin

which one of the following is required in the diet in order for active thyroid hormones to be produced

iodine

all of the following may result from untreated diabetes mellitus except which one

neural disorders, blindness, INCREASED SUSCEPTIBILITY TO CANCER, kidney failure

Which of the following infectious agents is composed entirely and exclusively of protein

prion

cortisol is a glucocorticoid that helps maintain blood glucose levels during fasting by

promoting fat utilization

the primary sources of the nitrogenous wastes that are eliminated by the kidneys are

proteins

At which one of the following locations does most of the water filtered through the glomerulus reabsorb.

proximal tubule

whic of the following is TRUE regarding the spleen

red pulp of the spleen removes microorganisms

hormones act upon specific target issues because

target issues display the appropriate receptor for a particular hormone

Chloride ions passively follow sodium that has been actively transported out of tubular cells, due to the attraction of negatively charged ions to positively charged ions. T or F?

true

disorders associated w the endocrine system can b caused by problems w hormone production or lack of receptors for the hormones on the target cells. T or F?

true