Hydrophilic hormones are highly water soluble and have low lipid solubility.
a. True
b. False
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Question 2) Fibronectin is a protein that helps hold cells in position within tissues.
Indicate whether the statement is true or false
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Question 3) The enzyme cyclooxygenase (COX) initiates a pathway leading to formation of prostaglandins and thromboxanes.
a. True
b. False
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Question 4) Gap junctions contain carrier proteins that transport ions from one cell into another cell.
Indicate whether the statement is true or false
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Question 5) Eicosanoids typically act locally as paracrines, but some travel in the blood, similar to hormones, to distant target cells to produce systemic responses.
a. True
b. False
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Question 6) Cadherins are docking-marker acceptors to which secretory vesicles bind prior to exocytosis.
Indicate whether the statement is true or false
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Question 7) Many growth factors that help regulate cell growth and division, such as nerve growth factor and epidermal growth factor, act via the JAK/STAT pathway.
a. True
b. False
Indicate whether the statement is true or false
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Question 8) Some cell adhesion molecules are peripheral proteins and some are integral proteins.
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Question 9) Hormones are long-range chemical messengers specifically secreted into the blood by endocrine glands in response to an appropriate signal.
a. True
b. False
Indicate whether the statement is true or false
(
Question 10) Connexons are carbohydrate building blocks of gap junctions that allow ions to pass from the cytosol of one cell into the cytosol of an adjacent cell.
Indicate whether the statement is true or false
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