This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Which of the following is a definition of the isoelectric point of an amino acid? a. The pH at ... (Read 158 times)

captainjonesify

  • Hero Member
  • *****
  • Posts: 543
on: Aug 23, 2018
Which of the following is a definition of the isoelectric point of an amino acid?
 a. The pH at which an amino acid has no net charge
  b. The pH at which the -NH2 group is completely protonated
  c. The melting point of an amino acid
  d. The conductivity of a 1 M solution of an amino acid in water

Question 2

What is the approximate value of the pKa of the -NH3+ of amino acids?
 a. 2
  b. 5
  c. 9
  d. 12

Question 3

What is the approximate value of the pKa of the -CO2H of amino acids?
 a. 2
  b. 5
  c. 9
  d. 12


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

T4T

  • Sr. Member
  • ****
  • Posts: 348
Reply #1 on: Aug 23, 2018
Answer to Question 1

a

Answer to Question 2

c

Answer to Question 3

a


captainjonesify

  • Hero Member
  • *****
  • Posts: 543
Reply #2 on: Aug 23, 2018
Both answers were spot on, thank you once again


T4T

  • Sr. Member
  • ****
  • Posts: 348
Reply #3 on: Aug 23, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

Limit intake of red meat and dairy products made with whole milk. Choose skim milk, low-fat or fat-free dairy products. Limit fried food. Use healthy oils when cooking.

Did you know?

Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.

Did you know?

In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.

Did you know?

Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.

Did you know?

Stevens-Johnson syndrome and Toxic Epidermal Necrolysis syndrome are life-threatening reactions that can result in death. Complications include permanent blindness, dry-eye syndrome, lung damage, photophobia, asthma, chronic obstructive pulmonary disease, permanent loss of nail beds, scarring of mucous membranes, arthritis, and chronic fatigue syndrome. Many patients' pores scar shut, causing them to retain heat.

amino acids with single and three code amino acids with single and three code
Amino acid sequence of bovine insulin Amino acid sequence of bovine insulin
Common modifications of amino acid side chains in proteins Common modifications of amino acid side chains in proteins
Amino acids chart Amino acids chart
Amino acid conversion to the corresponding a-keto acid by transamination or oxidative deamination Amino acid conversion to the corresponding a-keto acid by transamination or oxidative deamination
Pi molecular orbital system of PLP-amino acid Schiff base Pi molecular orbital system of PLP-amino acid Schiff base
Video: Cortisol (protein catabolism, gluconeogenesis, vasoconstriction & anti-inflammation)

For a complete list of videos, visit our video library