Which one of these statements is incorrect?
A. A red blood cell placed in an isotonic solution would stay the same.
B. A cell placed in an hypertonic solution would undergo crenation.
C. A cell placed in an hypotonic solution would swell and perhaps burst.
D. A cell placed in a hypotonic solution would undergo crenation.
Answer: D. A cell placed in a hypotonic solution would undergo crenation.
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The presence of sex chromatin in a smear of epithelial cells indicates that the donor of the cells is a genetic female.
Answer the following statement true (T) or false (F)
Which of the light micrographs in the figure below shows a pseudostratified columnar epithelium?
a) A b) B c) C d) D e) E
When the carbonic acid-sodium bicarbonate buffer pair buffer an acid:
a. the pH of the blood drops slightly b. a weak acid is replaced by a strong acid c. water is formed d. both A and C above
Explain why humans should avoid drinking salt water
What will be an ideal response?