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1. Which of the following are consistent with the laws of thermodynamics? Energy can not be created...

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Biology

1. Which of the following are consistent with the laws ofthermodynamics?


Energy can not be created or destroyed, but it can be transformedfrom one form to another
Energy can be created, but a cell must do work in order toaccomplish this
Entropy decreases with every energy transformation
Once energy has been used to do work, it is destroyed.

2. Which of the following statements about individual enzymes isNOT true


They are organic compounds, usually made of protein
They are biological catalysts which increase the rates of chemicalreactions
Any given enzyme can function at any pH
Enzymes denature if exposed to high temperature

3. Pepsin (an enzyme found in the stomach) acts best at pH ofabout 2, but is not active at pH 7 because...


It has become denatured
The high pH acts as a non-competitive inhibitor
Feedback inhibition
Substrates break down at pH higher than 5

4. ATP is important in cells because...


It is an inorganic cofactor
It transfers energy released from endergonic reactions to powerexergonic reactions
It is an enzyme
It transfers energy released from exergonic reactions to powerendergonic reactions

Answer & Explanation Solved by verified expert
4.1 Ratings (722 Votes)
1 First option is correct because it is correctly defining thefirst and second law of thermodynamics Energy can neither becreated nor be destroyed but can be converted from one form toanotherSecond option is incorrect and last option is incorrect becauseboth of them are talking about creation and    See Answer
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