Although the extracellular environment has a high sodium ion concentration and the intracellular environment has a high potassium ion concentration, both must be neutralized by negatively charged molecules
In the extracellular case, what is the principal anion?
(a) HCO3–
(b) Cl–
(c) PO43–
(d) OH–
(b)
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Propose a growth setup that an industrial microbiologist would create to obtain large quantities of a bacteriocidal product of secondary metabolism
Be certain to explain how temperature and dissolved oxygen parameters would be selected as well as how stationary growth phase would be maintained. What will be an ideal response?
Tendons connect
(a) bones to bones. (b) skeletal muscles to bones. (c) ligaments to bones. (d) skeletal muscles to tendons.
Prokaryotic cell walls are constructed out of ______________
a. peptidoglycans b. cellulose c. gelatin d. starch
Which of the following is a trigger for the other actions described?
a. Extracellular fluid volume is reduced. b. Solute concentration in the extracellular fluid rises above a set point. c. Posterior pituitary secretes ADH. d. Distal tubules of the nephrons and the collecting ducts become more permeable to water. e. A small amount of concentrated urine is excreted