Enzymes

Enzymes are specialized catalysts of biochemical reactions because it_______.

• slows down reactions

• balance reactions

• stops reactions

• speed up reactions

Which of the following is describe an active sites?

• it is the product

• it is the reactant

• it is the zone of enzyme development

• it is the region where enzymatic reaction happen

Which of the following describes a substrate?

• it is the reactant

• it is the product

• it is the zone of enzyme development

• it is the region where enzymatic reaction happen

What happen to enzymes when temperature gets too high?

It refers to their ability to participate in multiple reactions without being consumed or permanently altered.

• Efficiency

• Accuracy

• Reusability

• Specificity

The efficiency of an enzymatic reaction may be affected by its activation energy because it requires a minimum amount of energy to form a transition state and proceed to products.

• True

• False

• Maybe

• The statement is incomplete

D-Lactate dehydrogenase (D-LDH) is an enzyme that plays a critical role in cellular metabolism. Which of the following is its specificity?

• Stereomer

  Specificity

• Stereo-chemical

  Specificity

• Isomerism

• Specificity

Group Specificity acts only on molecules that have a specific functional group. Which of the following is an example of a functional group?

• Carboxylic acids

• Urease

• Sucrose

• Aldehydes

Who is the prominent American biochemist renowned for his contributions to enzyme kinetics and protein function and developed induced fit model?

• James Watson
• Francis Crick
• Linus Pauling
• Daniel E. Koshland Jr.

He is a German chemist who proposed the lock and key model.

• Albert Einstein
• Niels Bohr
• Marie Curie
• Emil Fischer