With biology answer
question 2
substance a is converted to substance b in a metabolic r...
With biology answer
question 2
substance a is converted to substance b in a metabolic reaction. which statement best describes the role of an enzyme during this reaction?
a
it adjusts the ph of the reaction medium.
b
it provides energy to carry out the reaction.
c
it speeds up the reaction without being consumed.
question 3
a scientist observes that when the ph of the environment is changed, the reaction rate of an enzyme greatly decreases.
which statement best describes how a change in ph can affect an enzyme?
a
a ph change can cause the enzyme to change its shape.
b
a ph change can remove energy necessary to activate an enzyme.
c
a ph change can add new molecules to the structure of the enzyme.
which term describes reactions that involve the absorption of energy?
a
catabolic
b
endergonic
c
exergonic
question 6
organic compounds contain bonds between what types of atoms?
a
oxygen
b
carbon
c
hydrogen
the reaction shown below is known as what type of reaction?
reactants -> products + heat
a
activation
b
enzymes
c
exothermic
question 9
what happens when an enzyme is exposed to a temperature that is too high?
a
the enzyme becomes denatured.
b
the enzyme functions normally.
c
the substrates can bind to the active site faster.
question 10
a catalyst is a substance that does what?
a
it speeds up a chemical reaction, but is consumed in the process.
b
it slows down a chemical reaction, without being consumed in the process.
c
it speeds up a chemical reaction, without being consumed in the process.
question 11
what is the energy required to get a reaction started called?
a
activation energy
b
adhesion energy
c
chemical energy
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