Which of the following structures function in holding organelles in place, maintaining cell shape and rigidity, and directing organelle movement?
A. Centrioles
B. Flagella
C. Golgi apparatus
D. Microtubules
E. Cilia
D
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Which of the following substances that contributes to skin color is of dietary origin?
A. Collagen B. Hemoglobin C. Melanin D. Carotene E. Bilirubin
Color blindness is tested using ________
A) Ishihara plates B) a chart of lines radiating out from a white circle C) a Snellen eye chart D) sudden illumination of the retina
A(n) ________ consists of a combination of a weak acid and its associated anion
A) water balance B) exchange pump C) leak channel D) fixed acid E) buffer system
The ducts that deliver bile and pancreatic juice from the liver and pancreas, respectively, unite to form the ________.
A) portal vein B) pancreatic acini C) bile canaliculus D) hepatopancreatic ampulla