T1 - 1 True or False Homeostasis is best described as a static unchanging state of the internal environment-False Homeostasis is the regulation of the

T1 - 1 True or False Homeostasis is best described as a...

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1) True or False? Homeostasis is best described as a static, unchanging state of the internal environment. -False. Homeostasis is the regulation of the body's internal environment, keeping it stable but not static. 2) the normal range of arterial blood ph is 7.35-7.45 3) The Primary stimulus for insulin secretion in? a) increased blood calcium concentrations b) Increased blood glucose concentrations *c) increased body temperature d) increased exposure to sunlight 4) Which of the following is not an example of positive feedback? 5) how are the phospholipids arranged to form the plasma membrane? c) double layer with hydrophobic tails facing inward toward each other Each phosphate group has one head and two tails. 6) Diffusion ____________ the entropy of a solution increases 7) Which of the following is NOT true of a person who is dehydrated? * a) ADH causes the kidneys to excrete water b) plasma osmolality increases c) increased osmolarity causes thirst d) hypothalamus stimulates release of ADH 8) A cell placed in a 9% saline solution (molecular weight = 58.5g) would 9) ion channel that can be opened by physiological stimuli are said to be 10) what type of intravenous fluid should be given to reduce edema? Hypotonic 11) most of the water found in the body is in the a)* Intracellular fluid b)Extracellularc)Bloodd)Blood and extracellular fluid 12) hydrophobic molecule usually enter a cell via -diffusion * 13) ________ are a class of glycoproteins that bind to components in the extracellular matrix thereby acting as adhesion molecules between cells and the matrix. - b) Integrins
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c) Glycocalyces * 14) which of the following is not a function of membrane proteins?
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  • Fall '15
  • Dr. Charles Kramer
  • Enzyme

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