« previous next »

Author Question: Which of the following does not describe the role that can be played by an enzyme in a biological ... (Read 66 times)

geodog55

  • Hero Member
  • *****
  • Posts: 530
on: Aug 23, 2018
Which of the following does not describe the role that can be played by an enzyme in a biological reaction?
   
  1.It changes the mechanism of the reaction.
  2.It lowers the energy of a transition state.
  3.It changes the free-energy of the reaction.
  4.It changes the rate of the reaction.
  5.It increases the specificity of the reaction.

Question 2

In a radical chain reaction, what would be the best description of the following reaction?
   H3C + Cl  CH3Cl


  1.propagation
  2.elimination
  3.initiation
  4.termination
  5.substitution

Question 3

What is the role of the alkene in the reaction above?
 
  1.electrophile
  2.nucleophile
  3.free radical
  4.catalyst
  5.Lewis acid

Question 4

Which of the following statements is incorrect?
  1.Polar reactions must have ionic intermediates.
  2.Initiation in radical-chain reactions must generate species with unpaired electrons.
  3.Polar reactions occur between electrophiles and nucleophiles.
  4.Lewis bases generally behave as nucleophiles.
  5.Electrophiles can be neutral as well as positively charged.


joanwhite

  • Sr. Member
  • ****
  • Posts: 308
Reply #1 on: Aug 23, 2018
Answer to Question 1

3

Answer to Question 2

4

Answer to Question 3

2

Answer to Question 4

1


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.

Did you know?

Children with strabismus (crossed eyes) can be treated. They are not able to outgrow this condition on their own, but with help, it can be more easily corrected at a younger age. It is important for infants to have eye examinations as early as possible in their development and then another at age 2 years.

Did you know?

By definition, when a medication is administered intravenously, its bioavailability is 100%.

Did you know?

People with alcoholism are at a much greater risk of malnutrition than are other people and usually exhibit low levels of most vitamins (especially folic acid). This is because alcohol often takes the place of 50% of their daily intake of calories, with little nutritional value contained in it.

Did you know?

The top five reasons that children stay home from school are as follows: colds, stomach flu (gastroenteritis), ear infection (otitis media), pink eye (conjunctivitis), and sore throat.

The role of cell-signalling proteins in the morphology of birds' feet. The role of cell-signalling proteins in the morphology of birds' feet.
Biological anthropologists map skeletal remains from a prehistoric site. Biological anthropologists map skeletal remains from a prehistoric site.
Role-Play Scenarios Role-Play Scenarios
The structures of the brain that have been shown to play a role in memory. Because it would have ... The structures of the brain that have been shown to play a role in memory. Because it would have ...
Effect of cooperative substrate binding on enzyme kinetics Effect of cooperative substrate binding on enzyme kinetics
Niche: An individual’s ecological role Niche: An individual’s ecological role
Video: Introduction to Breast Cancer

For a complete list of videos, visit our video library