You are thirsty and stranded on an island with two sources of water to drink. You have the option to drink the salty ocean water or to drink muddy, fresh water. Which water will you choose to drink to quench your thirst? Explain your selection
What will be an ideal response?
Choose the hypotonic fresh water. Hypotonic solutions are those in which the solution is less concentrated than the cytosol. Water moves into the cytosol by osmosis, which will rehydrate your cells since you are thirsty. (Your immune system can help handle contaminants in the muddy fresh water). The salty ocean water is hypertonic to our cells and will cause our cells to lose water further and crenate.
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The main homeostatically regulated variable of the cardiovascular system is the mean systemic arterial blood pressure.
Answer the following statement true (T) or false (F)
Stress, causing excessive amounts of epinephrine secretion which stimulates glycogen breakdown, indicates which condition? This condition can also indicate diabetes mellitus
a) albuminuria b) glucosuria c) urobilinogenuria d) hematuria e) bilirubinuria
Which of the following is not a function of the Na+-K+ pump?
A. Heat production B. Secondary active transport C. Regulation of cell volume D. Transport of Na+ into the cell and K+ out of the cell E. Maintenance of membrane potential
When the effects of one hormone reinforce the activity of another hormone on the same target cell, the interaction is said to be
A. synergistic. B. permissive. C. agonistic. D. antagonistic.