Cytochromes contain a heme group similar to that in hemoglobin. The iron atom (Fe) in the center of the group can be oxidized and reduced. If someone was suffering from iron deficiency anemia, what stage of cellular respiration would be most affected?
A. Glycolysis
B. The electron transport chain
C. Fermentation
D. The Citric acid cycle
Answer: B
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A scientist is examining motile protozoa. He wishes to determine their direction of movement. Which of the following microscopic techniques is least likely to be used to view these cells?
A) light microscopy B) electron microscopy C) differential interference contrast microscopy D) fluorescence microscopy E) phase-contrast microscopy
Which of the following statements about blood
cells in solutions is CORRECT?
a. A blood cell placed in an isotonic solution will swell. b. A blood cell placed in a hypotonic solution will swell. c. A blood cell placed in a hypotonic solution will shrink. d. A blood cell placed in an isotonic solution will shrink. e. A cell placed in a hypotonic solution will remain the same size.
Certain appendages of insects evolved into broad,
thin extensions for the purpose of a. walking. b. flight. c. feeding. d. copulation. e. swimming.
The glomerular capsule contains capillaries inside of it called the ________. Together they form the renal corpuscle
Fill in the blank(s) with correct word