Which class of nutrients provides certain "essential" organic components required in the diet because they cannot be manufactured by the body? 

A. carbohydrates
B. proteins
C. nucleic acids
D. water
a. true
b. false


B. proteins

Biology & Microbiology

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Which division of the autonomic nervous system stimulates digestion?

What will be an ideal response?

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Bile is crucial for ______ digestion because of its function in _____.

A. protein, protecting the stomach lining B. fat, solubilizing glycerol:fatty acid bonds C. nucleic acids, uncoiling DNA strands D. fat, emulsification E. protein, lyophilization

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Which cells are held in reserve to be used for a rapid response to subsequent intruders of the same type?

a. NK cells b. helper T cells c. cytotoxic T cells d. memory cells e. B cells

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The genotype is the physical appearance of the organism

1.True 2.False

Biology & Microbiology