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Biochemistry 1 Review
Test Description: Biochemistry
Instructions: Answer all questions to get your test result.
1) Biology is the study of
A
minerals.
B
energy.
C
the weather.
D
life.
2) Living things
A
All of the above
B
have the ability to reproduce.
C
need energy for life processes.
D
are composed of cells.
3) Homeostasis means
A
a change over long periods of time.
B
the same thing as evolution.
C
keeping things the same.
D
rapid change.
4) In the Homeostasis Experiment students observed how their heart rate changed over time and compared their rate of change with a partner's. The dependent variable in this experiment was
A
exercise
B
time
C
partner
D
heart rate
5) In the Homeostasis Experiment students observed how their heart rate changed over time and compared their rate of change with a partner's. The independent variable in this experiment was
A
time
B
heart rate
C
partner
D
exercise
6) A student noticed that in dirty pond water some frogs had developed an extra leg. This was a(n)
A
theory.
B
observation.
C
control.
D
hypothesis.
7) Twin puppies are fed different types of dog. Spot was fed canned dog food while Rover was fed dried dog food. After a few weeks, Spot had put on significantly more weight than Rover. In this experiment, what is the dependent variable?
A
Type of Dog Food
B
Amount of Dog Food
C
None of the Above
D
Weight of Dogs
8) The smallest unit of matter that cannot be broken down by chemical means is a(n)
A
molecule.
B
electron.
C
atom.
D
element.
9) The bonds between the atoms that make up water molecules are called
A
covalent bonds.
B
ionic and covalent bonds.
C
covalent and hydrogen bonds.
D
hydrogen bonds.
10) Attraction between substances of the same kind is called
A
cohesion
B
gravity
C
adhesion
D
polarity
11) Attraction between different substances is called
A
gravity
B
cohesion
C
adhesion
D
polarity
12) Which of the following is a role of water in cells?
A
transporting minerals
B
filtering blood
C
producing nutrients
D
removing bacteria
13) Which of the following is a role of water in cells?
A
stabilizing temperatures
B
storing energy
C
providing immunity
D
regulating enzymes
14) Water stores heat much longer than other substances do, allowing organisms to
A
maintain a stable internal temperature.
B
heat themselves through evaporation.
C
dissolve nonpolar compounds.
D
maintain surface tension.
15) All organic compounds contain
A
phosphorus.
B
sulfur.
C
nitrogen.
D
carbon.
16) Which of the following best describes how lipids affect the functioning of living organisms?
A
Lipids make up the backbone that holds DNA and RNA nucleotides together.
B
Lipids help to break apart proteins so that energy may be released.
C
Lipids are converted into nucleic acids for DNA synthesis.
D
Lipids provide an energy source for periods of low glucose availability.
17) Which of the following make up a triglyceride?
A
nucleic acids and glycerol
B
phosphoric acids and glycerol
C
fatty acids and glycerol
D
amino acids and glycerol
*select an answer for all questions
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