APHY 101 IVY TECH EXAM 1 MIDTERM
QUESTIONS WITH ANSWERS.
The secondary structure of a protein molecule is the result of -
correct answer -hydrogen bonds.
A person with alkalosis has a blood pH less than 7.3. - correct
answer -False
The formula H2O refers to - correct answer -A molecule that
contains two hydrogen atoms and one oxygen atom.
Which of the following is characteristic of carbohydrates? - correct
answer -all of the above.
Consider the following list of commonly found items and their pH
values: Which of the choices includes all acids? - correct answer -
Vinegar, grapes, tomatoes, and coffee
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Lipids - correct answer -all of the above.
Electrolytes are substances that: - correct answer -ionize in water.
An electrolyte ionizes in water. - correct answer -True
The number of protons in an atom of an element always equals its
atomic weight. - correct answer -False
A water solution that contains equal numbers of hydrogen ions
and hydroxide ions is - correct answer -neutral
Which of the following substances is an element? - correct
answer -Iron
Which of the following groups of compounds is hydrophobic? -
correct answer -Lipids
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The atomic weight of an element whose atoms contain 8 protons,
8 electrons, and 8 neutrons is - correct answer -16
A decomposition reaction can be symbolized by - correct answer -
AB → A + B.
The difference in hydrogen ion concentration between solutions
with pH 4 and pH 5 is - correct answer -tenfold
Chemistry is important to the study of physiology because -
correct answer -all of the above.
Cancer can result if - correct answer -mitosis is too frequent or
does not stop.
In phagocytosis - correct answer -a cell membrane engulfs solid
particles.