1,716 Answered Questions for the topic biochemistry

Biochemistry Biology Biology Tutor Bio

10/16/16

Disulfide bonds are most commonly apart of which protein structure?
a. Primary b. Secondary  c. Teritary d. Quaternary 
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Biochemistry

09/13/16

Find the Ph of the solution.
If 50 mL of 0.30 M propionic acid [PA] is added to 250 mL of 0.024 M NaOH, what is the resulting pH of the solution? pK = 4.87.   I keep getting an answer of 4.47, but I know that it should be... more
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Biochemistry Biology Volume Acid Base

08/28/16

If a patient has a blood volume of 4.7L, how much H+ is in deficit?
I know that is has to do with pH and hydrogen ions, but i do not know what is the correlation between volume and hydrogen ions
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Biochemistry Science Biology Chemistry

05/19/16

The relative rates of CO2 production by glycolysis and by the pentose phosphate path can be determined by measuring the rates at which 14CO2 appears following i
The relative rates of CO2 production by glycolysis and by the pentose phosphate path can be determined by measuring the rates at which 14CO2 appears following ingestion of glucose labeled with 14C... more
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Biochemistry

03/29/16

what is the best knockout technique for IDH1 and 2 isozymes
 This is a question that has to do with the TCA cycle
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02/18/16

n an actual combustion expirement 88 grams of propane produced 176 grams. how many grams of co2 should have been produced theoretically
in an actual combustion expirement 88 grams of propane produced 176 grams. how many grams of co2 should have been produced theoretically
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02/15/16

Fill in the blank: Aerobic Respiration requires constant supply of ____and fuel from the following energy storage molecules: _____ or ____.
Student of biochemistry in first year of college. I am stuck at this only fill in the blank question. Can anybody please help? The qustions is - Aerobic Respiration requires constant supply of... more
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11/20/15

What is the effect of acidification of oceans on uptake of calcium carbonate for shelled organisms??
What is the effect of acidification of oceans on uptake of calcium carbonate for shelled organisms?
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Biochemistry

11/09/15

Drugs that readily penetrate biological membranes often are, as part of their metabolism, conjugated to glucuronic acid. WHAT WOULD THIS MODIFICATION achieve, s
Drugs that readily penetrate biological membranes often are, as part of their metabolism, conjugated to glucuronic acid. WHAT WOULD THIS MODIFICATION achieve, structurally/ functionally ?
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Biochemistry

11/09/15

If you were to use an antibody to identify a N-acetylglucosamine ( GlCNAC) transferase in a cell, what compartment of the cell would you expect to find this enz
If you were to use an antibody to identify a N-acetylglucosamine ( GlCNAC) transferase in a cell, what compartment of the cell would you expect to find this enzyme?WHY do you say this?
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Biochemistry Biology Chemistry

11/09/15

You are mapping a particular sequence of DNA that is 7.5 kb in length...
You are mapping a particular sequence of DNA that is 7.5 kb in length . You ‘cut’ it (by incubation) with HindIII and obtain 3 fragments of 1 kb, 2kb, and 3.5 kb You cut it with Bam HI and obtain 2... more
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11/08/15

Draw a glycosidic bond between beta-D-2 deoxyribose and N-acetyl neuraminic acid
 Draw a glycosidic bond between beta-D-2 deoxyribose and N-acetyl neuraminic acid 
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Biochemistry

11/03/15

Please help with biochemistry
DNA topoisomerase II unwinds DNA using the free energy derived from ATP hydrolysis to ADP and Pi. To follow continuously the catalytic turnover of DNA topoisomerse II, an enzymatic assay needs to... more
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Biochemistry

11/01/15

Please help with biochem
The first law of thermodynamics states that the amount of energy in the universe is constant, but that the various forms of energy can be interconverted. Describe four different types of such... more
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Biochemistry

10/22/15

Help please
Staphylococcal nuclease accelerates phosphodiester bond hydrolysis by a factor of 5.6x1014 over the spontaneous rate (1.7x10-13). How much does staphylococcal nuclease decrease the activation... more
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Biochemistry

10/19/15

I need help with biochem
Staphylococcal nuclease accelerates phosphodiester bond hydrolysis by a factor of 5.6x1014 over the spontaneous rate (1.7x10-13). How much does staphylococcal nuclease decrease the activation... more
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Biochemistry

10/18/15

I need help with biochemistry
The covalent catalysis mechanism of an enzyme depends on a single active site Cys whose pKa is 8. A mutation in a nearby residue alters the microenvironment so that this pK increases to 10. Would... more
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Biochemistry

10/18/15

I want help with biochemsitry
Would you expect chymotrypsin to catalyze peptide bond formation?
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Biochemistry

10/05/15

Please I need help with biochemistry
selenocysteine and pyrrolysine. Based on their structure, what unique reactions/weak interactions can they engage in? Why are they called the 21th and 22th amino acids
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Biochemistry

10/05/15

Can beta sheets be found on the surface of proteins?
Protein structure
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Biochemistry

10/05/15

Selenocysteine and pyrrolysine, based on their structure, what unique reactions/weak interactions can they engage in?
Uncommon Amino acids
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Biochemistry

10/05/15

What is the rationale for many large proteins containing multiple copies of a polypeptide subunit?
 It is question about protein 
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Biochemistry

09/12/15

The hydrogen bond length varies considerably, why?
 hydrogen bond
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Biochemistry

09/10/15

calculate the pH values and draw the titration curve of 500mL of 0.020M acetic acid pka 4.76 with 0.020 M KOH
calculate the pH value and draw the titration curve for the titration of 500mL of 0.010 acetic acid (pKa 4.76) with 0.010 M KOH. Calculate the ph of the solution after 510 mL of the titrant have... more
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Biochemistry Chemistry

08/28/15

Equilibrium b/w 2 isomers A and B (both have same mol. wt) is attained when there is 5% by weight A and, by difference, 95% by weight of B. What is Keq?
calculate equilibrium constant
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