You are working with a child in a health clinic who has growth retardation, impaired immunity, and a poor appetite. This child is most likely experiencing ____ deficiency
a. iron
b. chromium
c. zinc
d. magnesium
e. sodium
c
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What initiates an action potential on a muscle cell?
A. Acetylcholinesterase. B. Acetylcholine binding to receptors on the sarcolemma within the neuromuscular junction. C. ATP. D. Myosin cross bridges binding to actin.
Most nutrient absorption occurs in:
a. the stomach. b. the large intestine. c. the small intestine. d. the liver.
Hydrochloric acid is released from parietal cells of the stomach and is responsible for hydrolyzing the peptide bonds of the protein's primary structure
Indicate whether the statement is true or false
Which component of physical fitness refers to the length of time muscles can perform physical activities?
a. muscular strength b. muscular endurance c. cardiorespiratory fitness d. balance e. flexibility