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BIO 131 EXAM 1 CH 1,2,&3 HENRY FORD COLLEGE QUESTIONS AND ANSWERS
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BIO 131 EXAM 1 CH 1,2,&3 HENRY FORD COLLEGE
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BIO 131 EXAM 1 CH 1,2,&3 HENRYFORD COLLEGE
Biology - Answer -Scenic Study Of life
7 properties of life . - Answer -Reproduction, Growth and development Energy use,
order, Cell, Response to the enviorment, Evoluation
Soemthing does not display all properties of life. Is a virus alive? - Answer -A virus is
NOT ALIVE
Biological Organization LARGEST TO SMALLEST - Answer -biosphere, ecosystem,
community, population, organism, organ, tissue, cell,molecule, atom
What is the scientific method? - Answer -A serious of steps, that if followed may provide
insight about the natural world
scentific method in order - Answer -Observation
Question
Hypothesis
Experiment
Results
Conclusion
Hypothesis - Answer -a proposed explanation for an observation
Theory - Answer -A well sub-stained explanation that is much broader in scope then a
hypothesis
What is the independent variable? - Answer -The independent variable is the variable
that is changed
dependent variable - Answer -The response, output , or effect under the investigation
What is a controlled experiment? - Answer -A test that runs multiple times with one
variable changing and all other variables held constant
Define a single blind experiment, double blind experiment and placebo - Answer -Single
blind: some info about the experiment is withheld from the participants.
, Double blind: An experiment in which neither the participant nor the experimenter knows
which group is which
Placebo : A medically ineffective treatment that allows the placebo group to serve as a
control for the real drug
What is the diffrence between primary source and a Secondary source - Answer -
Primary source - original material presented for the firstvil time by the person who
performed the research
Secondary Source - A description OR Reveiw of primary Source , often Containg
commentary
What does a line graph, bar graph, and pie Chart Show ? - Answer -Line graph - Often
used to display data that changes continuously, made by plotting many Individual
pieces of data & Connecting dots.
Bar graph - often used to compare categories data Pie chart - used to convey
percentages
What are the 5 major Themes of biology? - Answer -evolution,
structure/function,
information flow,
energy & matter pathways,
interconnections
What is the unifying theme of biology? - Answer -evolution
Atom - Answer -All matter consists if, the smallest unit that retain all of the properties of
their type matter
Molecule - Answer -Atom are usually bonded to each other to form molecules
Element - Answer -All matter composed of individual elements substances that cannot
be broken down into other substances by chemical reactions
Compounds - Answer -Substances with two or more elements in a fixed ratio
When looking at a formula for a chemical reaction which side would you find the
reactants and which side would have the products? - Answer -Chemical reactions are
written with the reactants (starting matter) on the left and the products (ending matter)
on the right
What are the four elements that make up 96.3% of living cells? - Answer -Oxygen 65%
carbon 18.5%
hydrogen 9.5%
nitrogen 3.3%
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