As part of their defense against bacteria, neutrophils secrete the iron-binding protein ________, making iron unavailable for bacterial multiplication
a. transferrin
b. heme
c. lactoferrin
d. lactose
e. macferrin
C
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Visual pigments are derivatives of the compound
A) retinal. B) opsin. C) rhodopsin. D) transducin. E) cGMP.
Crossover of information between cerebral hemispheres occurs through the
A) external capsule. B) handedness of the individual. C) corpus callosum. D) fornix. E) All of the answers are correct.
Minerals and vitamins share which characteristic?
a. They help enzymes function. b. They are both organic. c. They are both inorganic. d. Both A and B above.
What type of cell would have an abundance of lysosomes?
A. liver cells that detoxify hydrogen peroxide B. fibroblast (makes protein fibers) C. white blood cell, a phagocyte D. cardiac muscle cells (require large amounts of ATP) E. mucus cell (secretes mucus)