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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
life.
C
the weather.
D
energy.
2) Living things
A
are composed of cells.
B
have the ability to reproduce.
C
need energy for life processes.
D
All of the above
3) Homeostasis means
A
rapid change.
B
the same thing as evolution.
C
keeping things the same.
D
a change over long periods of time.
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
heart rate
B
time
C
partner
D
exercise
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
partner
B
time
C
heart rate
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
hypothesis.
D
control.
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
None of the Above
C
Amount of Dog Food
D
Weight of Dogs
8) The smallest unit of matter that cannot be broken down by chemical means is a(n)
A
molecule.
B
atom.
C
element.
D
electron.
9) The bonds between the atoms that make up water molecules are called
A
covalent and hydrogen bonds.
B
ionic and covalent bonds.
C
hydrogen bonds.
D
covalent bonds.
10) Attraction between substances of the same kind is called
A
gravity
B
cohesion
C
adhesion
D
polarity
11) Attraction between different substances is called
A
adhesion
B
gravity
C
polarity
D
cohesion
12) Which of the following is a role of water in cells?
A
removing bacteria
B
producing nutrients
C
transporting minerals
D
filtering blood
13) Which of the following is a role of water in cells?
A
regulating enzymes
B
storing energy
C
stabilizing temperatures
D
providing immunity
14) Water stores heat much longer than other substances do, allowing organisms to
A
maintain a stable internal temperature.
B
dissolve nonpolar compounds.
C
heat themselves through evaporation.
D
maintain surface tension.
15) All organic compounds contain
A
phosphorus.
B
carbon.
C
nitrogen.
D
sulfur.
16) Which of the following best describes how lipids affect the functioning of living organisms?
A
Lipids help to break apart proteins so that energy may be released.
B
Lipids make up the backbone that holds DNA and RNA nucleotides together.
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
phosphoric acids and glycerol
B
nucleic acids and glycerol
C
amino acids and glycerol
D
fatty acids and glycerol
*select an answer for all questions
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