BIOL 203 PRACTICE EXAM 1 QUESTIONS
AND ANSWERS CONCORDIA
UNIVERSITY
What is simple diffusion?
✔✔High to low concentration, down concentration gradient.
Define facilitated diffusion.
✔✔"Helped"; high to low concentration with a carrier protein. NO ATP.
Define active transport.
✔✔Low to high concentration; needs carrier AND ATP; endo & exocytosis.
Define phagocytosis.
✔✔Cell "eating".
Define pinocytosis.
✔✔Cell "drinking", receptor mediated.
Where is simple cuboidal epithelium found?
✔✔Kidney tubules
What is the function of simple columnar epithelium?
✔✔Secretion and absorption

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