2 answers

Biochemistry

Question:

The tripeptide alanyllysylaspartate contains four ionizable groups with pKas of 2.0, 3.9, 9.9, and 10.5. Calculate the pI for this molecule.
a)3
b)6
c)6.2
d)10.2
e)none of the above.
The ans is none of the above. can you explain?

Answers

2e)none of the above..

The most acidic hydrogen has a pKa of 2.

The molecule should have a pKa of 2, equal to that of the most acidic hydrogen.
.

Similar Solved Questions

1 answer
Rhesus factor, is a type of protein found on the outside of red blood cells. The...
Rhesus factor, is a type of protein found on the outside of red blood cells. The protein is genetically inherited. A donor is said to have Rh+ blood if the Rhesus factor is present in their blood. Suppose that a blood donation campaign is launched by the University of Ottawa walk-in clinic. Among un...
1 answer
What would I write about ? Not sure what the teacher is wanting please help me...
What would I write about ? Not sure what the teacher is wanting please help me ! Told only to chose one diversity ? Help help Understanding the various diverse populations is important in the healthcare industry. Diversity may include age, gender, race, ethnicity, religion, and cultural values. Thi...
1 answer
Use the tables for finding area under a normal curve! Question 9 3 pts Household incomes...
Use the tables for finding area under a normal curve! Question 9 3 pts Household incomes in a certain state have mean $53,550 and a standard deviation $3,750 and the incomes follow a normal distribution. A randomly selected household from this state has an income of $58,050. The approximate perce...
1 answer
Find the angle between the vectors. (Round your answer to three decimal places.) u = (-3,...
Find the angle between the vectors. (Round your answer to three decimal places.) u = (-3, 4), v = (-1, 2) 0 = radians...
1 answer
Asked what the central limit theorem says, a student replies, "As you take larger and larger...
Asked what the central limit theorem says, a student replies, "As you take larger and larger samples from a population, the histogram of the sample values looks more and more Normal." No. The central limit theorem says nothing about the histogram of the sample values. It deals only with the...
1 answer
Define the linear transformation T by T(X) = AX. 14 A= 32 (a) Find the kernel...
Define the linear transformation T by T(X) = AX. 14 A= 32 (a) Find the kernel of T. (If there are an infinite number of solutions use t as your parameter.) ker(7) (b) Find the range of T. O {(t, 2t): t is any real number) O R2 O {(-t, t): t is any real number) OR {(2t, t): t is any real number)...
1 answer
14. For it is given that 1-2 is an invertible matrix such that 1 0 01 AQ A-2 0 0 0 1 0] Let A ((1...
can I have the answer for (a)? thank u!! 14. For it is given that 1-2 is an invertible matrix such that 1 0 01 AQ A-2 0 0 0 1 0] Let A ((1. 2,0), (0,0, D), (0,0, 0)). Find a basis B of R3 such that the m transition from B to A is matrix of 10 01 D2-0 1 0 and an invertible P such that PAQ D2. (Hint: ...
1 answer
1 − sq. root 3i. Write the trigonometric form of the complex number. (Let 0 ≤...
1 − sq. root 3i. Write the trigonometric form of the complex number. (Let 0 ≤ θ < 2π.)...
1 answer
A full 60-gallon water storage tank drains at a ate of 3 gallons per minute
a full 60-gallon water storage tank drains at a ate of 3 gallons per minute .how moch water is in the tank after 4 minute?...
1 answer
Appraise ways in which your nursing practice (patient care, education, research, administration, etc.) has been influenced...
Appraise ways in which your nursing practice (patient care, education, research, administration, etc.) has been influenced by nursing (or borrowed) theory....
1 answer
FIN320_05_Fall2019_MonWed 4pm Fredy Hidalgo : Homework: Chapter 7 Homework Score: 0 of 1 pt + 4...
FIN320_05_Fall2019_MonWed 4pm Fredy Hidalgo : Homework: Chapter 7 Homework Score: 0 of 1 pt + 4 of 13 (9 complete, HW Scor P 7-9 (similar to) Ovit, Inc. has preferred stock with a price of $19.05 and a dividend of $1.55 per year. What is its dividend yield? The dividend yield is % (Round to one'...
1 answer
We were unable to transcribe this imageThe following additional information is available about the company's activities...
We were unable to transcribe this imageThe following additional information is available about the company's activities during this year: a. The company declared and paid a cash dividend this year b. Bonds with a principal balance of $381,000 were repaid during this year c. Equipment was sold du...
1 answer
A im should pay off 14.Using the following table, enter the relevant categories of the given...
a im should pay off 14.Using the following table, enter the relevant categories of the given accounts, based on the example given. No. Account Title Classification Financial Statement in Normal Balance which it appears Ex. Accounts receivable Current asset Balance sheet Debit Accumulated Depreciatio...
1 answer
Underground water is to be pumped by a 78 percent efficient 5-kW submerged pump to a...
Underground water is to be pumped by a 78 percent efficient 5-kW submerged pump to a pool whose free surface is 30 m above the underground water level. Determine (a) the water volume flow rate and (b) the pressure difference across the pump. Disregard friction losses and assume that the effect of ki...
1 answer
X Your answer is incorrect. Wildhorse Company purchased a computer for $9,440 on January 1, 2019....
x Your answer is incorrect. Wildhorse Company purchased a computer for $9,440 on January 1, 2019. Straight-line depreciation is used, based on a 5-year life and a $1,180 salvage value. On January 1, 2021, the estimates are revised. Wildhorse now feels the computer will be used until December 31, 202...
1 answer
Through what pathways might racism and social exclusion affect the health of a population?
Through what pathways might racism and social exclusion affect the health of a population?...
1 answer
A triangle has vertices A, B, and C. Vertex A has an angle of #pi/2 #, vertex B has an angle of #( pi)/6 #, and the triangle's area is #24 #. What is the area of the triangle's incircle?
A triangle has vertices A, B, and C. Vertex A has an angle of #pi/2 #, vertex B has an angle of #( pi)/6 #, and the triangle's area is #24 #. What is the area of the triangle's incircle?...