Bio Chemistry Interview Questions
Questions Answers Views Company eMail

Why does the pH of the blood decrease in a person who has digested trematol?

1031

If you isolate mitochondria and place them in buffer with a low pH they begin to manufacture ATP. Why?

GHD,

1 4357

Explain why in anaerobic cells the ratio of pyruvate/ lactate is much less than 1 while under aerobic conditions the ratio of pyruvate/ lactate is much greater than 1?

1 4638




Which cellular compartment becomes acidic during mitochondrial electron transport?

2 3902

what is the primary purpose of fermentation in the absence of oxygen?

1 4458

Name the terminal electron acceptor during mitochondrial respiration?

1 5836

During a heart attack, blood flowing to the heart muscle is interrupted by blockage of a coronary artery. How would you expect the metabolism in the heart to change?

1688

Which vitamins participate, in coenzyme form, in reactions of the tricarboxylic acid cycle?

888




Reduction of which intermediate in glycolysis leads directly to a compound involved in the biosynthesis of fats?

1 1776

Which organ and subcellular site are most important for fatty acid biosynthesis?

1 1614

Which compound is involved in reducing levels of homocysteine in the blood?

1055

When a forensics laboratory tests evidence collected at the scene of a crime using the "DNA Fingerprinting" technique, what are the technicians comparing?

Vimta Labs,

1 1814

What is the difference between and aldose and a ketose? Give an example of each?

2 13196

What are carbohydrates used for in living systems?

3 7255

what is a Reducing sugar?

3 2858


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Un-Answered Questions { Bio Chemistry }

Which organ and subcellular site are most important for fatty acid biosynthesis?

773


what is your passion?

820


What factors can change the pKa value of an amino acid residue, and in which direction?

1283


Compare and contrast feedback inhibition and enzyme repression?

8009


I have given the protocol for the cyclodextrin glygosyl transferase assay: One ml of appropriately diluted enzyme sample was incubated at 60 °C for 15 min with 5 ml of 1% (w/v) gelatinized soluble starch in 50 mM, 7.0-pH Tris–HCl buffer. Reaction was terminated by boiling the reaction mixture for 3 min and reaction volume was made to 10 ml with distilled water. Two ml of above reaction mixture was withdrawn and mixed with 3 ml of Tris–HCl buffer, 5 ml of 125 mM Na2CO3, and 0.5 ml of phenolphthalein (25 mg phenolphthalein/100 ml absolute alcohol). Absorbance was measured at 550 nm. The percent decrease of sample was calculated with respect to control containing 5 ml of buffer, 5 ml of sodium carbonate and 0.5 ml of phenolphthalein. where Acontrol = absorbance of control and Atest = absorbance of sample. The amount of β-cyclodextrin (β-CD) produced was estimated from the standard graph of 0–500 μg/ml β-CD concentration against % decrease in absorbance. One unit of CGTase was defined as the amount of enzyme required to produce 1 μm of β-CD/min. Please can you suggest me the formula for the defination given in the last line

889






Which organ and subcellular site are most important for fatty acid biosynthesis?

964


Why does physical exertion increase symptoms of poisoning by trematol?

1486


bane the by products when crude oil is refined by distillation

939


Hi, I am venkat. I am done with M.Sc Medical Biochemistry in the year 2007. I got rejected 3 times at US consulate, and the reason they say is why are you going agian for PG when you have already done PG, and they are not ready to get convinced only on this issue.

927


How are free energy changes related to enthalpy changes and entropy changes?

819


what is meant by codan optimisation m rna enrichment?

1296


How are free energy, equilibrium and spontaneity related to each other?

943


Calculate the molar extinction coefficient of a solution containing 5 *10-4 g litre-1 of a biomolecule, molecular weight 275 g mol-1, and absorbance 0.75 in a 1.2 cm cuvette.

1916


how I cell disease is caused?

1175


does glucagon secretion induce sleep in teenagers?why?

962