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BIOL 1040 FINAL EXAM Study Guide
Questions With Verified Answers
The scientific process from beginning -> end can be outlined as
1 hypothesize, do experiments, analyze, and conclude
2 observations, hypothesize, do experiments, analyze, and conclude
3 observations, question, do experiments, analyze, and conclude
4 hypothesize, observations, analyze, do experiments, and conclude
5 observations, do experiments, hypothesize, analyze, and conclude - answer✔2 observations,
hypothesize, do experiments, analyze, and conclude
A hypothesis can do everything except
- proven true
- not supported
- supported
- falsfiable
- testable - answer✔be proven true
If the results of an experiment contradict the hypothesis, you have _____ the hypothesis.
- supported
- falsified
- proven
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- failed
- verified - answer✔falsified
Penicillin weakens bacteria by
- preventing them from making any new DNA
- preventing them from making any new plasma membrane
- preventing them from making any new proteins
- preventing them from making cell walls
- all of the above - answer✔Preventing them from making cell walls
Example of an everyday non-scientific theory
- if you forget your umbrella, it is sure to rain
- a good way to remember something is to tie a string around your finger
- life forms are related to eachother through common ancestry
- all living things are made of cells
- the universe was creating from a large cosmic explosion - answer✔a good way to remember
something is to tie a string around your finger
A scientific theory is
- a hypothesis that has been rigorously tested and never been disproven
- a hypotheis sthat has been rigorously tested and only been disproven a few times
- the same as a persons opinon
- a hypothesis that has veen tested at least five times
- a conclusion based on a persons experiemce or knowledge - answer✔A hypothesis that has
been rigorously tested and never disproven
Atoms are made up of
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- positively charged protons, negativly charged neutrons, and neutral electrons
- positivly charged electrons, negativly charged neutrons, and neutrral protons
- positivley charged protons, negativly charged electrons, and neutral neutrons
- negativly charged protons, positivly charged electrons, and neutral neutrons
- positvly charged neutrons, negatively charged electrons, and neutral neutrons -
answer✔positively charged protons, negatively charged electrons, and neutral neutrons
the johnson & johnson company is testing whether a placebo has the same effect as a new drug
they developed. a test for statistical significance of the difference in treatments effects on the
two groups shows the liklihood that this difference was due to their drug rather than _____ -
answer✔the placebo
how is the limiting of the cell similar to a sandwich?
- it has one surface with charged groups facing outward and another with uncharged (nonpolar)
group facing inward
- it has phospholipids tail groups exposed on the surface, charged groups in the muddle, and
tails facing the inside
- it has a lipid bilayer as the bread slices and proteins as the filling
- it has charged groups at the cell surface, phospholipid tails in the middle and charged gorups
facing the inside
- non of the above its homogenous - answer✔it has charged groups at the cell surface,
phospholipids' tails in the middle and charged groups facing the inside
in order for an element to have no charge which must be equivlent in number?
- subatomic particles and electrons
- subatomic particles and protons
- electrons and neutrons
- neutrons and protrons
- protons and electrons - answer✔protons and electrons
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water is essential to cell structure because
- they use its polar nature to define the boundaries between lipid and nonlipid structures
- the fact that the H atoms are slightly positve males it possible to interact with positivly
charged ions
- the range of tempretures which allow it to be liquid means the cell can still survive at different
tempretures
- they use its ability to remain liquid over large range of tempreture to keep cells from freezing
- both a and d - answer✔both a and d
1. they use its polar nature to define the boundaries between lipid and non-lipid structures
2. they use its ability to remain liquid over large range of temperatures to keep cells from
freezing
what is true about neutrons?
- an atom has the same number of neutrons and electrons
- all neutrons are found in the nucleus of the atom
- half of neutrons are posivte and half are negative giving the atom and overall neutral charge
- all neutrons are found in the valence shell of the atom
- neutrons are found curciling the nucleus of the atom - answer✔all neutrons are found in the
nucleus of an atom
what is the maxium number of atoms to which a single carbon can bind
1
2
3
4
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