For each of the following statements indicate if the statement is true or false.
ID: 226648 • Letter: F
Question
For each of the following statements indicate if the statement is true or false. If it is false, expalin why.
Explanation (if needed)
Exergonic reactions always give off heat.
Enzymes reduce the amount of energy released by an exergonic reaction.
Enzymes are highly specific catalysts and will act only on a single kind of molecule.
The entropy of the universe always increases.
When ADP is converted to ATP, energy is given off in a form the cell can use to drive endergonic reactions.
Coenzymes participate in reaction performed by enzymes, being chemically modified in the process. They are then rapidly recycled.
True or False Statement AnswerExplanation (if needed)
T or FExergonic reactions always give off heat.
T or FEnzymes reduce the amount of energy released by an exergonic reaction.
T or FEnzymes are highly specific catalysts and will act only on a single kind of molecule.
T or FThe entropy of the universe always increases.
T or FWhen ADP is converted to ATP, energy is given off in a form the cell can use to drive endergonic reactions.
T or FCoenzymes participate in reaction performed by enzymes, being chemically modified in the process. They are then rapidly recycled.
Explanation / Answer
only first four parts can be answered at a time, so here it goes
1. true all exergonic reactions release energy as their reactants lose their energy so the gibbs free energy change becomes negative and reaction occurs spontaneously
2. false
enzymes reduce the activation energy barrier so that more reactants can be converted into products, it does not reduce the released energy amount however.
3.true
enzymes are highly specific, they are specific for a particular kind of a substrate, or a reaction , or chemical bonds or even particular functional groups.
4. true
acc to second law of thermodynamics, entropy of universe always increases, this is the reason why all reactions tend to occur.
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.