The primary structure of a protein consists of
a) alpha helices.
b) beta-pleated sheets.
c) three dimensional folded conformation.
d) a sequence of amino acids linked by peptide bonds.
e) the overall folded conformation of the protein's subunits.
Answer: d
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Smoking mothers have a tendency toward ________
A) A higher rate of SIDS B) Babies of lower birth weights C) Premature births D) All of the above
The typical pattern for molecules absorbed by Na+-dependent transport involves this: an apical ________ and a basolateral ________.
A) facilitated diffusion carrier, symport protein B) symport protein, osmotic gradient C) osmotic gradient, symport protein D) facilitated diffusion carrier, osmotic gradient E) symport protein, facilitated diffusion carrier
Compare lymphatic capillaries in the small intestine with those found elsewhere
A) Lymphatic capillaries in the small intestine are called mucosa-associated lymphoid tissue and they contain dividing lymphocytes. Lymphatic capillaries elsewhere house mature, non-dividing, lymphocytes. B) Lymphatic capillaries in the small intestine are called lymph corpuscles and they are involved in the immune response of the body. Lymphatic capillaries elsewhere are not involved in the immune response of the body. C) Lymphatic capillaries in the small intestine are called lymph corpuscles and they are not involved in the immune response of the body. Lymphatic capillaries elsewhere are involved in the immune response of the body. D) Lymphatic capillaries in the small intestine also absorb nutrients to deliver to the hepatic portal vein and are critical components of the hepatic portal system. Lymphatic capillaries elsewhere do not carry any nutrients in the lymph. E) Lymphatic capillaries in the small intestine are called lacteals and they transport lipids. Lymphatic capillaries elsewhere are associated with blood capillary networks.
Which are possible functions of skeletal muscles? a: Maintenance of postureb: Both highly coordinated and localized simple movementsc: Temperature regulationd: Support of certain body organse: Restricting the movement of material through certain body tracts
A. a, b, c, d B. a, b, e C. a, b, c D. a, b, c, d, e E. a, b, c, e