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Chapter 1 & 2 Review Flashcards | StudBud
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Chapter 1 & 2 Review
Chapter 1 & 2 Review
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Review Biology Chemisty of Life and scientific method
Flashcards
16 cards
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Questions
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Answers
1
The statement "The worm is 2 centimeters long" is a(n)
theory
inference
observation
hypothesis
2
Process where 2 cells from 2 parents unite to produce the 1st cell of a new organism is called
development
homoestasis
sexual reproduction
asexual reproduction
3
A great deal of heat is needed to raise the temp. of water because water
readily forms solutions
has a high heat capacity
is an acid
acts as a buffer
4
An enzyme speeds up a reaction by
lowering activation energy
absorbing energy
raising activation energy
releasing energy
5
To be useful in science, a hypothesis must be
re-producible
measurable
observable
correct
6
2 or more atoms are combined in definite proportions in any
symbol
compound
element
isotope
7
An inference is
same as an observation
statement involving numbers`
interpretation of an observation
way to avoid bias
8
In a chemical reaction, a reactant binds to an enzyme at a region known as
active site
catalyst
product
substrate
9
A covalent bond is formed by the
sharing of electrons
transfer of electrons
gaining of electrons
losing of electrons
10
The purpose of peer review is to ensure that
published results meet scientific standards
all scientific results are published
the results of experiments are correct
all scientific research is funded
11
When you shake sugar and sand together in a test tube, you form a
suspension
mixture
solution
compound
12
Process in which organisms keep their internal conditions stable is called
evolution
metabolism
homeostasis
a genome
13
A skeptical attitude in science
is unimportant
means a new idea will be accepted if backed by evidence
encourages scientists to accept new ideas
prevents scientists from accepting new ideas
14
The positively charged particle in an atom is called the
neutron
electron
ion
proton
15
A compound that produces hydrogen ions in solution is a(n)
polymer
acid
base
salt
16
The scientific theory is
same as a conclusion
the same as a hypothesis
well tested explanation that unifies a range of observations
first step in a controlled experiment