An autoimmune problem involving the thyroid gland
A. Grave's disease
B. Pituitary dwarfism
C. Diabetes mellitus
D. Acromegaly
E. Addison's disease
Ans: A. Grave's disease
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An increase in parathyroid hormone levels results in
A. increased rate of bone resorption. B. increased rate of vitamin D degradation. C. increased concentration of potassium ions in the urine. D. increased rate of calcium ion excretion by the kidneys. E. decreased levels of blood calcium.
Hypersecretion of which of the following hormones is most likely to lead to high blood pressure and hypernatremia (excess blood sodium ion concentration)?
What will be an ideal response?
Embryologically, which of the following is homologous to the dura mater?
A. Choroid B. Retina C. Sclera D. Lens E. Ciliary body
Match each level of protein structure with its description.
1. applies to proteins containing more than one peptide chain 2. the sequence and number of amino acids in the chain 3. the three-dimensional shape of an amino acid chain; can be fibrous or globular 4. the spatial arrangement of amino acids; can be a helix or a pleated sheet A. primary B. secondary C. tertiary D. quaternary