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Bio 181 Lab Final Exam Questions and Answers 100% Pass $12.49   Add to cart

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Bio 181 Lab Final Exam Questions and Answers 100% Pass

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  • BIO 181

Bio 181 Lab Final Exam Questions and Answers 100% Pass What is a catalyst? - ANSWER-A substance that increases the rate of a chemical reaction without being used up What is an enzyme? - ANSWER-A biological molecule that increases the rate of a chemical reaction without being consumed, usually ...

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  • November 26, 2024
  • 19
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • BIO 181
  • BIO 181
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EmillyCharlotte
Bio 181 Lab Final Exam Questions and
Answers 100% Pass


What is a catalyst? - ANSWER✔✔-A substance that increases the rate of a

chemical reaction without being used up


What is an enzyme? - ANSWER✔✔-A biological molecule that increases

the rate of a chemical reaction without being consumed, usually a protein.


What is the activation energy? - ANSWER✔✔-The energy required to

convert a substrate to a product


How do enzymes catalyze reactions? - ANSWER✔✔-By forming a

substrate-enzyme complex. The enzyme brings the substrates together and

put stress to break the bonds. Enzymes create a micro-environment or

break bonds


What are 7 properties of enzymes? - ANSWER✔✔-Most are proteins.




Highly specific to - usually - one substrate.
Copyright ©EMILLYCHARLOTE 2025 ACADEMIC YEAR, ALL RIGHTS RESERVED. Page 1/19

,They form an enzyme-substrate complex:




E + S ↔ ES → P + E




They do not affect the direction of a reaction.




They lower the energy of activation of a reaction.




They are not consumed in the reaction.




They are often highly regulated.


How does an inhibitor work? - ANSWER✔✔-Prevents binding of the target

molecule of the enzyme by binding to the active site or another site




Copyright ©EMILLYCHARLOTE 2025 ACADEMIC YEAR, ALL RIGHTS RESERVED. Page 2/19

, What are the 2 types of inhibitors? - ANSWER✔✔-Competitive and

Noncompetitive


What affects enzymatic activity? - ANSWER✔✔-Substrate specificity,

substrate/enzyme concentration, pH and temperature


How does substrate specificity affect enzymatic activity? - ANSWER✔✔-

Substrate specificity is a term for the fact that each enzyme generally

converts only one specific substrate for one specific reaction. The more

specific a substrate is, the enzyme will want to react with that substrate


How does substrate/enzyme concentration affect enzymatic activity? -

ANSWER✔✔-If there is too much substrate compared to the enzyme,

enzymatic activity will plateau


Increasing the amount of enzymes will increase the rate of enzymatic

activity


How does pH affect enzymatic activity? - ANSWER✔✔-Enzymes function

in a certain pH, if the pH changes more acidic or basic the enzyme's

functional groups change. This changes the structure. Extreme pH can

denature enzymes by breaking the hydrogen bonds between them

Copyright ©EMILLYCHARLOTE 2025 ACADEMIC YEAR, ALL RIGHTS RESERVED. Page 3/19

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