Bio Chemistry Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Bio Chemistry Interview Questions

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When it functions as a "second messenger", cAMP a) acts outside the cell to influence cellular processes. b) acts "second in importance" to AMP. c) activates all cytosolic protein kinases. d) activates the cAMP-dependent protein kinase.

2393

The reduction-oxidation (Redox) potentials of NADH and FADH2 show that the following reaction is spontaneous: a) FADH2 + NAD+ --> FAD + NADH b) FADH2 + NADP+ --> FAD + NADPH c) NADH + FAD --> NAD+ + FADH2 d) Reactions a) and b) are both spontaneous

1 7825

The ATP synthase of bacteria is an Fl-like particle attached to the a) ends of proto-mitochondria. b) inner surface of the cell (or plasma) membrane. c) outer surface of the cell (or plasma) membrane. d) surface of protonic vesicles.

1 4142

The yield of ATP/glucose unit in glycolysis with glycogen as the glucose source is a) 2.0 b) 2.5 c) 3.0 d) 4.0

1 3911

What was the primary antibody that was used?

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1 5030

Describe how you used that antibody to visualize β-gal protein?

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1 6129

Review your data from the entire module. Say we ask you to redo the purification.Is there any step that you could eliminate? Which one? Why can you eliminate it?

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2 4759

Why do proteins that recognize specific DNA sequences usually bind in the major groove of DNA?

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2 5468

An unusual structure is formed at the 5? end of each cellular mRNA. What is it? After this has formed, does the mRNA have a 5? terminus? Explain.

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1 3927

Splicing of pre-mRNA involves an unusual phosphodiester bond. Why is it unusual? What parts of the intron/exon form this bond?

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1 4582

Many genes are regulated in both a negative and a positive manner. The genes mediating lactose metabolism in bacteria are a classical example. What are the two small molecule ligands that control expression of these genes? What does each one do?

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1 4411

Some proteins profoundly alter the structure of DNA when they bind, bending it far out of its standard B configuration. Where do you think the energy comes from to distort the DNA?

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1 4432

Is there a biochemical test for maltose?

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2 18423

When starch reacts with iodine, why does it create the characteristic blue-black colour?

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5 21148

Explain about RESPIRATION ?

1 4015

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Un-Answered Questions { Bio Chemistry }

What are the favorable conditions for formation of Anions?

1133

What are similarities and differences between the transcription process and the replication processes?

1168

What amount of catalyst is consumed in the reaction it catalyzes?

1063

What is the bond angle of phosphorous?

1072

Where is csf found? What is its function?

1079

What is hoffman degradation method?

1088

What is kararch effect?

1033

How can denaturizing be classified regarding its reversibility?

1068

give the formula of borax. Borax is chemically called as.

1117

What are the raw materials used for the precipitation of Na2Co3 by Solvay ammonium Process?

1117

Which is the most Abundant Alkaline earth element?

1079

Give the type of functional group, general formula, and the suffix for methanoic acid (or) formic acid.

981

What does glycolysis in erythrocytes produce?

1154

All technical,written test questions

1765

Define geometrical isomerism.

1118

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