Why does calcium not bind to calmodulin in an nonstimulated cell?
a) In an nonstimulated cell, calcium ions are destroyed.
b) Calmodulin's affinity for calcium ions is too high to allow binding in an nonstimulated cell.
c) In an nonstimulated cell, calcium ions preferentially bind to another protein in the cytosol.
d) Calmodulin's affinity for calcium ions is too low to allow binding in an nonstimulated cell.
e) In an nonstimulated cell, calcium ions are produced
Ans: d) Calmodulin's affinity for calcium ions is too low to allow binding in an nonstimulated cell.
You might also like to view...
The primary function of a phagocyte is to
A) destroy pathogens. B) engulf pathogens. C) evade pathogens. D) both engulf and destroy pathogens.
When the longitudinal muscles within an earthworm segment contract, what effect does this have on the shape of the segment?
A. The segment will shorten and widen. B. The segment will elongate and widen. C. The segment will shorten and become narrower in diameter. D. The segment will elongate and become narrower in diameter. E. The segment will change length, but not diameter.
The chromosomes are aligned at the spindle equator during
a. anaphase. b. metaphase. c. interphase. d. prophase. e. telophase.
________ plants are adapted to grow in water or on soil that is periodically anaerobic because of excess water
Fill in the blank(s) with correct word