During a natural disaster, it is safe to drink the water from ________.
A. the water tank of an intact toilet
B. a broken water heater
C. a swimming pool
D. a queen-size water bed
Answer: A
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________ is an essential amino acid.
A. Homocysteine B. Aspartic acid C. Alanine D. Lysine
If amino acids are oversupplied, their amine group is excreted and the fragments that remain are converted to ____
a. glucose, glycogen, or fat b. sucrose and amino acids c. fat and nonessential amino acids d. urea and ketones e. essential amino acids and glycogen
A medication that adversely affects folic acid metabolism is:
a. warfarin (Coumadin). b. methotrexate. c. sedative drugs. d. monoamine oxidase inhibitors.
Which of the following statements is true of nutrient circulation?
A) The lymphatic system enables the circulation of water-soluble nutrients. B) Lymph vessels provide water-soluble nutrients directly to the liver. C) The liver gets last access to the nutrient-rich blood that leaves the small intestine. D) Lymphatic vessels empty into the bloodstream where nutrients can be used by cells.