Explain how the molecular structure of bile salts permits them to function as emulsifiers
What will be an ideal response?
Answer: Bile salts are amphipathic molecules with a polar region that interacts with water and a nonpolar region that binds to fats. By coating the surface, the fat droplets are stabilized in the aqueous solution of the intestine.
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Blood pressure and cardiac output can be altered according to
A) emotional responses. B) body temperature. C) body temperature, emotional responses, and blood oxygen levels. D) blood oxygen levels. E) body temperature and emotional responses.
Each day about ________ liter(s) of peritoneal fluid enters and leaves the peritoneal cavity.
A) 10 B) 13 C) 7 D) 1 E) 26
An abnormal lateral curvature of the spine is called
A. hunchback. B. scoliosis. C. lordosis. D. kyphosis.
Many of the flexors of the wrist and fingers originate on the
A. head of the ulna. B. distal end of the radius. C. greater tubercle of the humerus. D. lateral epicondyle of the humerus. E. medial epicondyle of the humerus.