Which of the following gives a cell structural support, determines the shape of a cell, and directs the movement of substances through a cell?
A) The cytoskeleton
B) The nucleus
C) The Golgi complex
D) The plasma membrane
E) Cholesterol
A
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Which hormone uses a "bone bank" to maintain the plasma calcium level?
a. calcitonin b. GH c. thyroxine d. PTH e. ACTH
Which of the following is NOT consistent with active transport?
A. Movement is with a concentration gradient B. Uses cell energy C. Movement is against a concentration gradient D. Involves a carrier E. Exhibits competition and saturation
What gland is not working properly in both Cushing syndrome and Addison disease?
A) Adrenal gland B) Pancreas C) Hypothalamus D) Pituitary gland
Embryonic stem cells are said to be ________. That is, they have the ability to develop into any type of adult cell.
Fill in the blank(s) with the appropriate word(s).