What is the function of intrinsic factor?
A. It assists with absorption of vitamin B in the small intestine.
B. It begins chemical digestion of protein.
C. It stimulates production of hydrochloric acid.
D. It digests fat in the stomach.
E. It stimulates production of mucus.
Answer: A
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Bodybuilders are known for their "great quads." Describe the quadriceps muscles.
What will be an ideal response?
A(n) ____________________ is made up of six protein subunits arranged in a hollow, tube-like structure that extends through the thickness of the plasma membrane
Fill in the blank(s) with correct word
Higher brain centers that alter the activity of the respiratory centers include all of the following except the
A) cerebral cortex. B) pons. C) limbic system. D) hypothalamus. E) None of the answers is correct.
Adrenergic receptors
A. can be activated by the release of epinephrine. B. have two structural forms - muscarinic and nicotinic. C. when activated stimulate skeletal muscles to contract. D. can be found in both the sympathetic and parasympathetic divisions. E. are activated by the release of acetylcholine.