1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ivanzaharov [21]
2 years ago
11

The pKa for the side chain of histidine is 6.0. What is the ratio of the deprotonated imidazole side chain to the protonated sid

e chain at pH 5.0 and at pH 7.5?
Biology
1 answer:
Solnce55 [7]2 years ago
7 0

Answer:

When the pKa is 6.0, we can determine the fraction of protonated H is by:

pH = pKa + log [A]/[HA]

Where

A = Deprotonated imidazole side

HA = Protonated side

Given, pH = 5.0

5 = 6 + log [A]/[HA]

log [A]/[HA] = -1 (take antilog of both side)

[A]/[HA] = 0.1

The ratio of the deprotonated imidazole side chain to the protonated side chain at pH 5.0 = 0.1

Given, pH = 7.5

7.5 = 6 + log [A]/[HA]

log [A]/[HA] = 1.5 (take antilog of both sides)

[A]/[HA] = 31.62

The ratio of the deprotonated imidazole side chain to the protonated side chain at pH 5.0 = 31.62

You might be interested in
"Human glucocebrosidase, for treatment of Gaucher's disease, has been successfully produced using carrot cells. What is a major
arlik [135]

Answer:

Human glucocebrosidase is used as a therapeutic drug which is used to treat Gaucher's disease.

The farming of this substances in crops is very helpful for the population. The genetic engineering to insert genes in plants would result in GMOs.

It is more beneficial to use plants for this process as compared to that of animals because it is easily available and easily extracted.

It is more economical and easily accessible by people. It would not harm animals by incorporating the gene in them in laboratory conditions.  

8 0
3 years ago
What is atp in general
Ksenya-84 [330]
ATP is a high-energy molecule found in every cell. Its job is to store and supply the cell with needed energy. hope this helps :)
5 0
3 years ago
______________, such as NADH and FADH, are molecules that capture and transport chemical energy by donating or accepting electro
avanturin [10]
<span>Electron carrier Molecules. Both NAH and FADH are molecules that are specifically designed to transport electrons in chemistry. This is a very important function because it provides energy for the necessary chemical reactions to take place</span>
5 0
3 years ago
PLZZ HELPImagine you had to engage in extreme physical exertion—say, running a few miles or doing a lot of sit-ups. What will ha
timofeeve [1]
Physical activity causes an increase in your heart rate. Your body have to change the way it behaves so you don’t get ill or sick or pass out during physical exertion
3 0
2 years ago
Describe how energy and matter move through the food web and carbon cycle 
Scilla [17]
Photosynthetis, burning of fossil fuels, plant respiration.
3 0
3 years ago
Read 2 more answers
Other questions:
  • Which illustration has the correct direction in which an action potential travels through a neuron?
    15·1 answer
  • Where is the primary site where the chemical digestion of butter occurs?
    8·1 answer
  • Why was lamrckism rejected by darwinsm
    11·1 answer
  • Prior to mitosis and after S phase, each chromosome of a eukaryotic cell consists of a pair of identical structures called______
    15·2 answers
  • The folded inner membrane of a particular organelle where atp is produced in the process of cellular respiration.
    8·1 answer
  • Bones in bird's wing and a human's arm are similar in structure
    15·2 answers
  • The altitude where the dewpoint equals the air temperature is called what?
    5·1 answer
  • What happens when something weathers over time?
    13·2 answers
  • The Appalachian Mountains were formed about 500-400 million years ago. What has caused them to change so much over time
    11·1 answer
  • (03.05 MC)<br> In which of the following ways is DNA replication similar to transcription?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!