Which theory of water transport states that hydrogen bonding allows water molecules to maintain a continuous fluid
column as water is pulled from roots to leaves?
a. pressure flow
b. evaporation-condensation
c. cohesion-tension
d. osmotic pressure
e. bulk flow
ANSWER: c
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Some forms of methylmalonic acidemia can be ____
a. caused by ethylene glycol exposure b. caused by tainted baby formula c. caused by type O blood transfusions d. cured if the condition is detected early in life e. treated successfully if the condition is detected early in life
A genetic disorder that involves impaired
blood clotting is
a. leukemia. b. sickle cell anemia. c. hemophilia. d. atherosclerosis. e. hypertension
________ occurs when an external signal does NOT directly enter the cell but instead is detected by a sensor that transmits it to the rest of the regulatory machinery
a. Quorum sensing b. Sensory transduction c. Signal transduction d. Two-component regulation
What is the reservoir for Ca2+ in the body?
A. muscles B. brain C. blood D. liver E. bones