To obtain energy from starch and glycogen, the body must begin by
A) hydrolyzing the starch to glucose and the glycogen to amino acids.
B) hydrolyzing both starch and glycogen to glucose.
C) converting both starch and glycogen to fatty acids.
D) removing one glucose at a time with a condensation reaction.
Home pregnancy test kits can detect whether a woman is pregnant within one to three
weeks of her egg being fertilized. The test kits include a short strip of paper that extends
from a plastic case. After a woman urinates on the strip of paper and waits three to five
minutes, a symbol is displayed on a small window in the plastic case. Some tests show
a single line to indicate the woman is not pregnant (negative result) and two lines to
indicate she is pregnant (positive result). Others show a minus or plus sign (or some
other variation) to indicate negative and positive results.
The test reports a positive symbol if it detects the presence of HCG in the woman's
urine. In order for HCG to be detected, it must be present in the urine at a concentration
of at least 10 to 100 units per milliliter. Even though home pregnancy tests are well
designed and have been tested extensively, false negative and false positive results do
occur. A false positive occurs when a test tells a woman that she is pregnant when she
really is not, and a false negative occurs when a test tells a woman that she is not
pregnant when she really is. Most home pregnancy test kit manufacturers claim that
their tests are over 99% accurate.
If you were designing a home pregnancy test kit, which of the following statements
would you include in the instructions in an attempt to minimize false positive results?