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CHXII14:BIOMOLECULES

324848 If the amino group of glycine and carboxylic acid group of alanine undergo elimination of water molecule,the name of the compound thus formed is

1 Alanylglycide (dipeptide)

2 Glycylalanide (tri peptide)

3 Glycylalanine (dipeptide)

4 Alanylglycine (dipeptide)

CHXII14:BIOMOLECULES

324849 In peptide formation, $- {NH}_{2}$ group of one molecule condenses with

1

- COOH

group of same molecule

2

- COOH

group of another molecule

3

- COCl

group of another molecule

4

- {NH}_{2}

group of another molecule.

Explanation:

$α -$ amino acids combines as
supporting img
Hence, $- {NH}_{2}$ group of one molecule condenses with $- COOH$ group of another molecule.

CHXII14:BIOMOLECULES

324850 There are 20 naturally occurring amino acids. The maximum number of tripeptides that can be obtained is

1 6470

2 7465

3 5360

4 8000

Explanation:

Since there are 20 naturally occurring amino acids.
$∴$ Maximum no.of tripeptides that can be obtained are $= (20)^{3} = 8000$

KCET - 2009

CHXII14:BIOMOLECULES

324851 A decapeptide (mol wt - 796) on complete hydrolysis gives glycine ( mol wt -75), alanine & phenylalanine. Glycine contributes $47.0 %$ of total weight of hydrolysed products. The number of glycine units present in the decapeptide is

1 6

2 8

3 2

4 5

Explanation:

The mol, wt,decapeptide $= 796$
Glycine $($ Mol wt $= 75)$ contribute $= 47 %$
Let $n$ be number of glycine units. Since its a decapeptide, on hydrolysis water molecules gets added.
$\Rightarrow$ so mass of product $= 796 + (9 \times 18) = 958$
Glycine contribution $47 %$ of 958
$= \frac{47}{100} \times 958 = 450$
$\Rightarrow$ Number of glycine units
$= \frac{450}{75} = 6$

CHXII14:BIOMOLECULES

324852 Number of tripeptides can be prepared by linking the amino acids glycine, alanine and phenyl alanine are

1 nine

2 three

3 six

4 twelve

CHXII14:BIOMOLECULES

324848 If the amino group of glycine and carboxylic acid group of alanine undergo elimination of water molecule,the name of the compound thus formed is

1 Alanylglycide (dipeptide)

2 Glycylalanide (tri peptide)

3 Glycylalanine (dipeptide)

4 Alanylglycine (dipeptide)

CHXII14:BIOMOLECULES

324849 In peptide formation, $- {NH}_{2}$ group of one molecule condenses with

1

- COOH

group of same molecule

2

- COOH

group of another molecule

3

- COCl

group of another molecule

4

- {NH}_{2}

group of another molecule.

Explanation:

$α -$ amino acids combines as
supporting img
Hence, $- {NH}_{2}$ group of one molecule condenses with $- COOH$ group of another molecule.

CHXII14:BIOMOLECULES

324850 There are 20 naturally occurring amino acids. The maximum number of tripeptides that can be obtained is

1 6470

2 7465

3 5360

4 8000

Explanation:

Since there are 20 naturally occurring amino acids.
$∴$ Maximum no.of tripeptides that can be obtained are $= (20)^{3} = 8000$

KCET - 2009

CHXII14:BIOMOLECULES

324851 A decapeptide (mol wt - 796) on complete hydrolysis gives glycine ( mol wt -75), alanine & phenylalanine. Glycine contributes $47.0 %$ of total weight of hydrolysed products. The number of glycine units present in the decapeptide is

1 6

2 8

3 2

4 5

Explanation:

The mol, wt,decapeptide $= 796$
Glycine $($ Mol wt $= 75)$ contribute $= 47 %$
Let $n$ be number of glycine units. Since its a decapeptide, on hydrolysis water molecules gets added.
$\Rightarrow$ so mass of product $= 796 + (9 \times 18) = 958$
Glycine contribution $47 %$ of 958
$= \frac{47}{100} \times 958 = 450$
$\Rightarrow$ Number of glycine units
$= \frac{450}{75} = 6$

CHXII14:BIOMOLECULES

324852 Number of tripeptides can be prepared by linking the amino acids glycine, alanine and phenyl alanine are

1 nine

2 three

3 six

4 twelve

CHXII14:BIOMOLECULES

324848 If the amino group of glycine and carboxylic acid group of alanine undergo elimination of water molecule,the name of the compound thus formed is

1 Alanylglycide (dipeptide)

2 Glycylalanide (tri peptide)

3 Glycylalanine (dipeptide)

4 Alanylglycine (dipeptide)

CHXII14:BIOMOLECULES

324849 In peptide formation, $- {NH}_{2}$ group of one molecule condenses with

1

- COOH

group of same molecule

2

- COOH

group of another molecule

3

- COCl

group of another molecule

4

- {NH}_{2}

group of another molecule.

Explanation:

$α -$ amino acids combines as
supporting img
Hence, $- {NH}_{2}$ group of one molecule condenses with $- COOH$ group of another molecule.

CHXII14:BIOMOLECULES

324850 There are 20 naturally occurring amino acids. The maximum number of tripeptides that can be obtained is

1 6470

2 7465

3 5360

4 8000

Explanation:

Since there are 20 naturally occurring amino acids.
$∴$ Maximum no.of tripeptides that can be obtained are $= (20)^{3} = 8000$

KCET - 2009

CHXII14:BIOMOLECULES

324851 A decapeptide (mol wt - 796) on complete hydrolysis gives glycine ( mol wt -75), alanine & phenylalanine. Glycine contributes $47.0 %$ of total weight of hydrolysed products. The number of glycine units present in the decapeptide is

1 6

2 8

3 2

4 5

Explanation:

The mol, wt,decapeptide $= 796$
Glycine $($ Mol wt $= 75)$ contribute $= 47 %$
Let $n$ be number of glycine units. Since its a decapeptide, on hydrolysis water molecules gets added.
$\Rightarrow$ so mass of product $= 796 + (9 \times 18) = 958$
Glycine contribution $47 %$ of 958
$= \frac{47}{100} \times 958 = 450$
$\Rightarrow$ Number of glycine units
$= \frac{450}{75} = 6$

CHXII14:BIOMOLECULES

324852 Number of tripeptides can be prepared by linking the amino acids glycine, alanine and phenyl alanine are

1 nine

2 three

3 six

4 twelve

CHXII14:BIOMOLECULES

324848 If the amino group of glycine and carboxylic acid group of alanine undergo elimination of water molecule,the name of the compound thus formed is

1 Alanylglycide (dipeptide)

2 Glycylalanide (tri peptide)

3 Glycylalanine (dipeptide)

4 Alanylglycine (dipeptide)

CHXII14:BIOMOLECULES

324849 In peptide formation, $- {NH}_{2}$ group of one molecule condenses with

1

- COOH

group of same molecule

2

- COOH

group of another molecule

3

- COCl

group of another molecule

4

- {NH}_{2}

group of another molecule.

Explanation:

$α -$ amino acids combines as
supporting img
Hence, $- {NH}_{2}$ group of one molecule condenses with $- COOH$ group of another molecule.

CHXII14:BIOMOLECULES

324850 There are 20 naturally occurring amino acids. The maximum number of tripeptides that can be obtained is

1 6470

2 7465

3 5360

4 8000

Explanation:

Since there are 20 naturally occurring amino acids.
$∴$ Maximum no.of tripeptides that can be obtained are $= (20)^{3} = 8000$

KCET - 2009

CHXII14:BIOMOLECULES

324851 A decapeptide (mol wt - 796) on complete hydrolysis gives glycine ( mol wt -75), alanine & phenylalanine. Glycine contributes $47.0 %$ of total weight of hydrolysed products. The number of glycine units present in the decapeptide is

1 6

2 8

3 2

4 5

Explanation:

The mol, wt,decapeptide $= 796$
Glycine $($ Mol wt $= 75)$ contribute $= 47 %$
Let $n$ be number of glycine units. Since its a decapeptide, on hydrolysis water molecules gets added.
$\Rightarrow$ so mass of product $= 796 + (9 \times 18) = 958$
Glycine contribution $47 %$ of 958
$= \frac{47}{100} \times 958 = 450$
$\Rightarrow$ Number of glycine units
$= \frac{450}{75} = 6$

CHXII14:BIOMOLECULES

324852 Number of tripeptides can be prepared by linking the amino acids glycine, alanine and phenyl alanine are

1 nine

2 three

3 six

4 twelve

CHXII14:BIOMOLECULES

324848 If the amino group of glycine and carboxylic acid group of alanine undergo elimination of water molecule,the name of the compound thus formed is

1 Alanylglycide (dipeptide)

2 Glycylalanide (tri peptide)

3 Glycylalanine (dipeptide)

4 Alanylglycine (dipeptide)

CHXII14:BIOMOLECULES

324849 In peptide formation, $- {NH}_{2}$ group of one molecule condenses with

1

- COOH

group of same molecule

2

- COOH

group of another molecule

3

- COCl

group of another molecule

4

- {NH}_{2}

group of another molecule.

Explanation:

$α -$ amino acids combines as
supporting img
Hence, $- {NH}_{2}$ group of one molecule condenses with $- COOH$ group of another molecule.

CHXII14:BIOMOLECULES

324850 There are 20 naturally occurring amino acids. The maximum number of tripeptides that can be obtained is

1 6470

2 7465

3 5360

4 8000

Explanation:

Since there are 20 naturally occurring amino acids.
$∴$ Maximum no.of tripeptides that can be obtained are $= (20)^{3} = 8000$

KCET - 2009

CHXII14:BIOMOLECULES

324851 A decapeptide (mol wt - 796) on complete hydrolysis gives glycine ( mol wt -75), alanine & phenylalanine. Glycine contributes $47.0 %$ of total weight of hydrolysed products. The number of glycine units present in the decapeptide is

1 6

2 8

3 2

4 5

Explanation:

The mol, wt,decapeptide $= 796$
Glycine $($ Mol wt $= 75)$ contribute $= 47 %$
Let $n$ be number of glycine units. Since its a decapeptide, on hydrolysis water molecules gets added.
$\Rightarrow$ so mass of product $= 796 + (9 \times 18) = 958$
Glycine contribution $47 %$ of 958
$= \frac{47}{100} \times 958 = 450$
$\Rightarrow$ Number of glycine units
$= \frac{450}{75} = 6$

CHXII14:BIOMOLECULES

324852 Number of tripeptides can be prepared by linking the amino acids glycine, alanine and phenyl alanine are

1 nine

2 three

3 six

4 twelve