Email

Chat with tutors

Login

Ask Questions, Get Answers

Menu X

home ask tuition questions practice papers mobile tutors pricing

X

Recent questions tagged biomolecules

Which of the following amino acid is achiral?

asked Mar 27, 2014 by thanvigandhi_1

1 answer

Glucose and Fructose are

asked Mar 27, 2014 by thanvigandhi_1

1 answer

Which disaccharide is present in milk?

asked Mar 27, 2014 by thanvigandhi_1

1 answer

The letter D in carbohydrates signifies

asked Mar 27, 2014 by thanvigandhi_1

1 answer

Nucleic acids are the polymers of

asked Mar 27, 2014 by thanvigandhi_1

1 answer

The relationship between nucleotide triplets and the amino acids is called

asked Mar 27, 2014 by thanvigandhi_1

1 answer

Which of the following bases is not present in DNA?

asked Mar 27, 2014 by thanvigandhi_1

1 answer

$ \alpha $-helix refers to

asked Mar 27, 2014 by thanvigandhi_1

1 answer

Amyloprotein is a polymer of

asked Mar 27, 2014 by thanvigandhi_1

1 answer

When hemiacetal reacts with alcohol the product is

asked Mar 27, 2014 by thanvigandhi_1

1 answer

The constituent units of sucrose are

asked Mar 27, 2014 by thanvigandhi_1

1 answer

Fructose has/is

asked Mar 27, 2014 by thanvigandhi_1

1 answer

The amino acids are the end products of the digestion of

asked Mar 27, 2014 by thanvigandhi_1

1 answer

Maltose on hydrolysis gives

asked Mar 27, 2014 by thanvigandhi_1

1 answer

The linkage which binds various amino acids in secondary structure of proteins is

asked Mar 27, 2014 by thanvigandhi_1

1 answer

Which of the following is an example of aldohexose?

asked Mar 27, 2014 by thanvigandhi_1

1 answer

starch can be used as an indicator for the detection of traces of

asked Mar 26, 2014 by sreemathi.v

1 answer

Carbohydrate without asymmetric carbon atom is

asked Mar 26, 2014 by sreemathi.v

1 answer

A polysaccharide that give only glucose when completely hydrolysed.

asked Mar 26, 2014 by sreemathi.v

1 answer

$(C_4H_{10}O_5)_n + nH_2O → C_{12}H_{22}O_{11} + H_2O → 2C_6H_{12}O_6$ What are the enzymes used in above conversion of Cellulose to Maltose to Glucose respectively ?

asked Mar 26, 2014 by sreemathi.v

1 answer

Calculate how much of the $\alpha$ and $\beta$ anomers of glucose are present in equlibrium mixture with a specific rotation of 52.6 degrees. (pure $\alpha$ D- glucose has specific rotation = + 112.2 degrees and that of $\beta$- D-glucose has specific rotation + 19 degrees)

asked Mar 26, 2014 by sreemathi.v

1 answer

The $\beta$ and $\alpha$ - D- glucose have different specific rotations. When either anomer is dissolved in water, their rotation change until the same fixed value results. What term is used for these changes?

asked Mar 26, 2014 by sreemathi.v

1 answer

$\begin{array}{1 1}\text{statement 1- D Glucopyranose is a non-reducing sugar}\\\text{statement 2- Six membered pyranose ring is always in equalibrium with its open chain counterpart}\end{array}$

asked Mar 26, 2014 by sreemathi.v

1 answer

If sucrose is treated with concentrated sulphuric acid, the product formed is

asked Mar 26, 2014 by sreemathi.v

1 answer

Starch is converted into maltose by the

asked Mar 26, 2014 by sreemathi.v

1 answer

The reagent which forms crystalline osazone derivative when reacted with glucose, is

asked Mar 26, 2014 by sreemathi.v

1 answer

Glucose has difference from fructose in that it.

asked Mar 26, 2014 by sreemathi.v

1 answer

Cellulose on hydrolysis with dilute sulphuric acid,gives

asked Mar 26, 2014 by sreemathi.v

1 answer

Treatment of (+)- glucose with $HIO_4$ gives the results that confirm its aldohexose structure. How many moles of $HIO_4$ should be consumed?

asked Mar 26, 2014 by sreemathi.v

1 answer

Fructose reduces Tollen’s reagent due to

asked Mar 26, 2014 by sreemathi.v

1 answer

An electric current is passed though an aqueous solution of a mixture of alanine (isoelectric point 6.0),glutamic acid (3.2) and arginine (10.7) buffered at pH 6. What will happen to the three amino acids?

asked Mar 26, 2014 by sreemathi.v

1 answer

$p - Cl - C_6H_4NH_2$ and $PhNH_36 + Cl^−$ can be distinguished by

asked Mar 26, 2014 by sreemathi.v

1 answer

How can lysine and glycine be separated from each other?The isoelectric points are pH 9.6 for lysine and pH 5.97 for glycine

asked Mar 26, 2014 by sreemathi.v

1 answer

Amino acids constitute one of the important class of organic compounds.These are

asked Mar 26, 2014 by sreemathi.v

1 answer

The structure of glycine at pH 6 is (isoelectric point = 6)

asked Mar 26, 2014 by sreemathi.v

1 answer

What happens when electrolysis of alpha amino acid is done at isoelectric point?

asked Mar 26, 2014 by sreemathi.v

1 answer

Isoelectric point is:

asked Mar 26, 2014 by sreemathi.v

1 answer

Why Glycine exist as $(H_3N+CH_2COO^−)$ while antranilic acid ($p − NH_2 − C_6H_4 − COOH)$ does not exist as dipolar ion ?

asked Mar 26, 2014 by sreemathi.v

1 answer

Non-essential amino acids are

asked Mar 26, 2014 by sreemathi.v

1 answer

Essential amino acids are

asked Mar 26, 2014 by sreemathi.v

1 answer

Glucose reacts with phenylhydrazine to form

asked Mar 18, 2014 by yamini.v

1 answer

Which of the following natural sugar is the sweetest ?

asked Mar 18, 2014 by yamini.v

1 answer

Proteins $\large\xrightarrow {Hydrolysis}$ $A$ $\large\xrightarrow {Hydrolysis}$ $\alpha-$ Aminoacids

asked Mar 18, 2014 by yamini.v

1 answer

Which enzyme helps in the formation of Maltose from starch ?

asked Mar 18, 2014 by yamini.v

1 answer

The catalyst required for acetylation of glucose is

asked Mar 18, 2014 by yamini.v

1 answer

Which of the following is D(+) glyceraldehyde ?

asked Mar 18, 2014 by yamini.v

1 answer

Given the following two statements, which of the following options that follow is TRUE?

asked Mar 17, 2014 by balaji

2 answers

All monosaccharides ----------- Tollen's reagent .

asked Mar 16, 2014 by yamini.v

1 answer

The human body does not produce

asked Mar 16, 2014 by yamini.v

1 answer

Which base is present in RNA but met in DNA ?

asked Mar 16, 2014 by yamini.v

1 answer

Page:

« prev
1
2
3
4
5
next »

Feedback Terms Facebook Twitter About Us

Your payment for is successful.

...