This topic contains a solution. Click here to go to the answer

Author Question: What is the net charge of isoleucine at its isoelectric point? A) 0 B) +1 C) +2 D) 1 E) ... (Read 115 times)

asd123

  • Hero Member
  • *****
  • Posts: 557
What is the net charge of isoleucine at its isoelectric point?
  A)
  0
  B)
  +1
  C)
  +2
  D)
  1
  E)
  2

Question 2

Under what condition would phenylalanine exist as follows?
 
  A)
  at a low pH
  B)
  at a high pH
  C)
  at the pI
  D)
  when pH = pKa
  E)
  none of these

Question 3

How many different combinations are possible for a tetrapeptide containing two glycines (Gly,) one alanine (Ala,) and one phenylalanine (Phe)?
  A)
  3
  B)
  6
  C)
  12
  D)
  24
  E)
  36



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

bd5255

  • Sr. Member
  • ****
  • Posts: 386
Answer to Question 1

a

Answer to Question 2

b

Answer to Question 3

c





 

Did you know?

Bisphosphonates were first developed in the nineteenth century. They were first investigated for use in disorders of bone metabolism in the 1960s. They are now used clinically for the treatment of osteoporosis, Paget's disease, bone metastasis, multiple myeloma, and other conditions that feature bone fragility.

Did you know?

Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.

Did you know?

Not getting enough sleep can greatly weaken the immune system. Lack of sleep makes you more likely to catch a cold, or more difficult to fight off an infection.

Did you know?

Barbituric acid, the base material of barbiturates, was first synthesized in 1863 by Adolph von Bayer. His company later went on to synthesize aspirin for the first time, and Bayer aspirin is still a popular brand today.

Did you know?

All adults should have their cholesterol levels checked once every 5 years. During 2009–2010, 69.4% of Americans age 20 and older reported having their cholesterol checked within the last five years.

For a complete list of videos, visit our video library