Which of the following best describes the structure of the plasma membrane?
A) The plasma membrane is a double layer of protein enclosing the plasma.
B) The plasma membrane is composed of cristae.
C) The plasma membrane is a phospholipid bilayer surrounding the cell.
D) The plasma membrane is a single-layered membrane that surrounds the nucleus of the cell.
Answer: C
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Which of the following might trigger erythropoiesis?
A) hypoxia of EPO-producing cells B) decreased tissue demand for oxygen C) an increased number of RBCs D) moving to a lower altitude
Which structure conveys urine from the kidney to the bladder?
A. Renal pelvis B. Mesonephric duct C. Collecting duct D. Urethra E. Ureter
Having to adjust to a dark room after walking in from bright light is because:
A) rhodopsin does not function in dim light. B) rods exposed to bright light need time to regenerate rhodopsin. C) the lens requires time to accommodate dim light. D) only cones function in dim light.
True or False: The subcutaneous tissue is part of the skin or the integumentary system
Indicate whether the statement is true or false.