Activation energy in a biological reaction
A - VCE - SSCE Biology - Question 19 - 2008 - Paper 1
Question 19
Activation energy in a biological reaction
A. increases in the presence of an enzyme.
B. increases with an increase in temperature.
C. is the energy required to star... show full transcript
Worked Solution & Example Answer:Activation energy in a biological reaction
A - VCE - SSCE Biology - Question 19 - 2008 - Paper 1
Step 1
A. increases in the presence of an enzyme.
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Answer
This statement is incorrect. Enzymes actually lower the activation energy required for a reaction to occur.
Step 2
B. increases with an increase in temperature.
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Answer
This statement is not entirely accurate. While temperature can increase the rate of reaction by providing more kinetic energy to molecules, it does not inherently increase the activation energy.
Step 3
C. is the energy required to start the reaction.
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Answer
This statement is correct. Activation energy is defined as the minimum energy needed for a reaction to occur, allowing reactants to transform into products.
Step 4
D. is involved in the formation of complex molecules only.
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Answer
This statement is false. Activation energy is a general concept and applies to all reactions, not just those forming complex molecules.
