To identify whether the statement “cysteine and serine are standard amino acids that contain the element sulfur” concerning sulfur-containing amino acids is true or false. Concept introduction: Amino acids are the biomolecules which contain an amino group, carboxylic acid group, and an alkyl chain. Amino acids are the main building block of protein molecules. A large number of amino acids condense together to form a polypeptide chain. There are 20 amino acids present in nature. These are arginine, histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, valine, alanine, asparagines, aspartic acid, cysteine, glutamic acid, glutamine, glycine, proline, serine, and tyrosine.

Question

Want to see the full answer?

Answer 1

Question

Chapter 26, Problem 26.106EP

(a)

Interpretation Introduction

Interpretation: To identify whether the statement “cysteine and serine are standard amino acids that contain the element sulfur” concerning sulfur-containing amino acids is true or false.

Concept introduction: Amino acids are the biomolecules which contain an amino group, carboxylic acid group, and an alkyl chain. Amino acids are the main building block of protein molecules. A large number of amino acids condense together to form a polypeptide chain.

There are 20 amino acids present in nature. These are arginine, histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, valine, alanine, asparagines, aspartic acid, cysteine, glutamic acid, glutamine, glycine, proline, serine, and tyrosine.

(b)

Interpretation Introduction

Interpretation: To identify whether the statement “the molecule H2S is released in the first step of the degradation of the amino acid cysteine” concerning sulfur-containing amino acids is true or false.

Concept introduction: There are 20 amino acids present in nature. These are arginine, histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, valine, alanine, asparagines, aspartic acid, cysteine, glutamic acid, glutamine, glycine, proline, serine, and tyrosine. Only two of the twenty amino acids have a sulfur atom in their structure. The two amino acids are cysteine and methionine. The structure of cysteine is:

Cysteine gives pyruvate as the degradation product. The degradation of cysteine is a two-step process.

(c)

Interpretation Introduction

Interpretation: To identify whether the statement “the first step in the synthesis of cysteine from serine is an activation step” concerning sulfur-containing amino acids is true or false.

Concept introduction: There are 20 amino acids present in nature. Only two of the twenty amino acids have a sulfur atom in their structure. The two amino acids are cysteine and methionine. The structure of cysteine is:

Cysteine is biosynthesized from serine that involves two steps.

(d)

Interpretation Introduction

Interpretation: To identify whether the statement “in the synthesis of cysteine from serine it is H2S molecule that supplies the sulfur” concerning sulfur-containing amino acids is true or false.

Concept introduction: There are 20 amino acids present in nature. Only two of the twenty amino acids have a sulfur atom in their structure. The two amino acids are cysteine and methionine. The structure of cysteine is:

Cysteine is biosynthesized from serine that involves two steps.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Students have asked these similar questions

Classify each statement as either true or false:a. Amino sugar contains an amino group in place of an hydroxy group.b. Sorbitol is an example of an alditol.c. The enzyme catalyzed oxidation of a hexose always occurs on the penultimate carbon.d. Hyaluronic acid is best known for its anticoagulant activity.

Complete each of the statements regarding amino acids. What amino acid (single-letter) code fits best in each category. 1. An example of a basic amino acid is _______. 2. An example of an acidic amino acid is __R____. 3. An example of a neutral polar amino acid is ___Q___. 4. An example of a hydrophobic amino acid is ______.

Which one of the following is not an essential amino acid? a) Glycine b) Lysine c) Phenyl alanine d) Valine

Answer 2

Question

Chapter 26, Problem 26.106EP

(a)

Interpretation Introduction

Interpretation: To identify whether the statement “cysteine and serine are standard amino acids that contain the element sulfur” concerning sulfur-containing amino acids is true or false.

Concept introduction: Amino acids are the biomolecules which contain an amino group, carboxylic acid group, and an alkyl chain. Amino acids are the main building block of protein molecules. A large number of amino acids condense together to form a polypeptide chain.

There are 20 amino acids present in nature. These are arginine, histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, valine, alanine, asparagines, aspartic acid, cysteine, glutamic acid, glutamine, glycine, proline, serine, and tyrosine.

(b)

Interpretation Introduction

Interpretation: To identify whether the statement “the molecule H2S is released in the first step of the degradation of the amino acid cysteine” concerning sulfur-containing amino acids is true or false.

Concept introduction: There are 20 amino acids present in nature. These are arginine, histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, valine, alanine, asparagines, aspartic acid, cysteine, glutamic acid, glutamine, glycine, proline, serine, and tyrosine. Only two of the twenty amino acids have a sulfur atom in their structure. The two amino acids are cysteine and methionine. The structure of cysteine is:

Cysteine gives pyruvate as the degradation product. The degradation of cysteine is a two-step process.

(c)

Interpretation Introduction

Interpretation: To identify whether the statement “the first step in the synthesis of cysteine from serine is an activation step” concerning sulfur-containing amino acids is true or false.

Concept introduction: There are 20 amino acids present in nature. Only two of the twenty amino acids have a sulfur atom in their structure. The two amino acids are cysteine and methionine. The structure of cysteine is:

Cysteine is biosynthesized from serine that involves two steps.

(d)

Interpretation Introduction

Interpretation: To identify whether the statement “in the synthesis of cysteine from serine it is H2S molecule that supplies the sulfur” concerning sulfur-containing amino acids is true or false.

Concept introduction: There are 20 amino acids present in nature. Only two of the twenty amino acids have a sulfur atom in their structure. The two amino acids are cysteine and methionine. The structure of cysteine is:

Cysteine is biosynthesized from serine that involves two steps.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Answer 3

Question

Chapter 26, Problem 26.106EP

(a)

Interpretation Introduction

Interpretation: To identify whether the statement “cysteine and serine are standard amino acids that contain the element sulfur” concerning sulfur-containing amino acids is true or false.

Concept introduction: Amino acids are the biomolecules which contain an amino group, carboxylic acid group, and an alkyl chain. Amino acids are the main building block of protein molecules. A large number of amino acids condense together to form a polypeptide chain.

There are 20 amino acids present in nature. These are arginine, histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, valine, alanine, asparagines, aspartic acid, cysteine, glutamic acid, glutamine, glycine, proline, serine, and tyrosine.

(b)

Interpretation Introduction

Interpretation: To identify whether the statement “the molecule H2S is released in the first step of the degradation of the amino acid cysteine” concerning sulfur-containing amino acids is true or false.

Concept introduction: There are 20 amino acids present in nature. These are arginine, histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, valine, alanine, asparagines, aspartic acid, cysteine, glutamic acid, glutamine, glycine, proline, serine, and tyrosine. Only two of the twenty amino acids have a sulfur atom in their structure. The two amino acids are cysteine and methionine. The structure of cysteine is:

Cysteine gives pyruvate as the degradation product. The degradation of cysteine is a two-step process.

(c)

Interpretation Introduction

Interpretation: To identify whether the statement “the first step in the synthesis of cysteine from serine is an activation step” concerning sulfur-containing amino acids is true or false.

Concept introduction: There are 20 amino acids present in nature. Only two of the twenty amino acids have a sulfur atom in their structure. The two amino acids are cysteine and methionine. The structure of cysteine is:

Cysteine is biosynthesized from serine that involves two steps.

(d)

Interpretation Introduction

Interpretation: To identify whether the statement “in the synthesis of cysteine from serine it is H2S molecule that supplies the sulfur” concerning sulfur-containing amino acids is true or false.

Concept introduction: There are 20 amino acids present in nature. Only two of the twenty amino acids have a sulfur atom in their structure. The two amino acids are cysteine and methionine. The structure of cysteine is:

Cysteine is biosynthesized from serine that involves two steps.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Answer 4

Question

Chapter 26, Problem 26.106EP

(a)

Interpretation Introduction

Interpretation: To identify whether the statement “cysteine and serine are standard amino acids that contain the element sulfur” concerning sulfur-containing amino acids is true or false.

Concept introduction: Amino acids are the biomolecules which contain an amino group, carboxylic acid group, and an alkyl chain. Amino acids are the main building block of protein molecules. A large number of amino acids condense together to form a polypeptide chain.

There are 20 amino acids present in nature. These are arginine, histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, valine, alanine, asparagines, aspartic acid, cysteine, glutamic acid, glutamine, glycine, proline, serine, and tyrosine.

(b)

Interpretation Introduction

Interpretation: To identify whether the statement “the molecule H2S is released in the first step of the degradation of the amino acid cysteine” concerning sulfur-containing amino acids is true or false.

Concept introduction: There are 20 amino acids present in nature. These are arginine, histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, valine, alanine, asparagines, aspartic acid, cysteine, glutamic acid, glutamine, glycine, proline, serine, and tyrosine. Only two of the twenty amino acids have a sulfur atom in their structure. The two amino acids are cysteine and methionine. The structure of cysteine is:

Cysteine gives pyruvate as the degradation product. The degradation of cysteine is a two-step process.

(c)

Interpretation Introduction

Interpretation: To identify whether the statement “the first step in the synthesis of cysteine from serine is an activation step” concerning sulfur-containing amino acids is true or false.

Concept introduction: There are 20 amino acids present in nature. Only two of the twenty amino acids have a sulfur atom in their structure. The two amino acids are cysteine and methionine. The structure of cysteine is:

Cysteine is biosynthesized from serine that involves two steps.

(d)

Interpretation Introduction

Interpretation: To identify whether the statement “in the synthesis of cysteine from serine it is H2S molecule that supplies the sulfur” concerning sulfur-containing amino acids is true or false.

Concept introduction: There are 20 amino acids present in nature. Only two of the twenty amino acids have a sulfur atom in their structure. The two amino acids are cysteine and methionine. The structure of cysteine is:

Cysteine is biosynthesized from serine that involves two steps.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Answer 5

Chapter 26, Problem 26.106EP

(a)

Interpretation Introduction

Interpretation: To identify whether the statement “cysteine and serine are standard amino acids that contain the element sulfur” concerning sulfur-containing amino acids is true or false.

Concept introduction: Amino acids are the biomolecules which contain an amino group, carboxylic acid group, and an alkyl chain. Amino acids are the main building block of protein molecules. A large number of amino acids condense together to form a polypeptide chain.

There are 20 amino acids present in nature. These are arginine, histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, valine, alanine, asparagines, aspartic acid, cysteine, glutamic acid, glutamine, glycine, proline, serine, and tyrosine.

(b)

Interpretation Introduction

Interpretation: To identify whether the statement “the molecule H2S is released in the first step of the degradation of the amino acid cysteine” concerning sulfur-containing amino acids is true or false.

Concept introduction: There are 20 amino acids present in nature. These are arginine, histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, valine, alanine, asparagines, aspartic acid, cysteine, glutamic acid, glutamine, glycine, proline, serine, and tyrosine. Only two of the twenty amino acids have a sulfur atom in their structure. The two amino acids are cysteine and methionine. The structure of cysteine is:

Cysteine gives pyruvate as the degradation product. The degradation of cysteine is a two-step process.

(c)

Interpretation Introduction

Interpretation: To identify whether the statement “the first step in the synthesis of cysteine from serine is an activation step” concerning sulfur-containing amino acids is true or false.

Concept introduction: There are 20 amino acids present in nature. Only two of the twenty amino acids have a sulfur atom in their structure. The two amino acids are cysteine and methionine. The structure of cysteine is:

Cysteine is biosynthesized from serine that involves two steps.

(d)

Interpretation Introduction

Interpretation: To identify whether the statement “in the synthesis of cysteine from serine it is H2S molecule that supplies the sulfur” concerning sulfur-containing amino acids is true or false.

Concept introduction: There are 20 amino acids present in nature. Only two of the twenty amino acids have a sulfur atom in their structure. The two amino acids are cysteine and methionine. The structure of cysteine is:

Cysteine is biosynthesized from serine that involves two steps.

Answer 6

Chapter 26, Problem 26.106EP

(a)

Interpretation Introduction

Interpretation: To identify whether the statement “cysteine and serine are standard amino acids that contain the element sulfur” concerning sulfur-containing amino acids is true or false.

Concept introduction: Amino acids are the biomolecules which contain an amino group, carboxylic acid group, and an alkyl chain. Amino acids are the main building block of protein molecules. A large number of amino acids condense together to form a polypeptide chain.

There are 20 amino acids present in nature. These are arginine, histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, valine, alanine, asparagines, aspartic acid, cysteine, glutamic acid, glutamine, glycine, proline, serine, and tyrosine.

Answer 7

Chapter 26, Problem 26.106EP

(a)

Interpretation Introduction

Interpretation: To identify whether the statement “cysteine and serine are standard amino acids that contain the element sulfur” concerning sulfur-containing amino acids is true or false.

Concept introduction: Amino acids are the biomolecules which contain an amino group, carboxylic acid group, and an alkyl chain. Amino acids are the main building block of protein molecules. A large number of amino acids condense together to form a polypeptide chain.

There are 20 amino acids present in nature. These are arginine, histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, valine, alanine, asparagines, aspartic acid, cysteine, glutamic acid, glutamine, glycine, proline, serine, and tyrosine.

Answer 8

(b)

Interpretation Introduction

Interpretation: To identify whether the statement “the molecule H2S is released in the first step of the degradation of the amino acid cysteine” concerning sulfur-containing amino acids is true or false.

Concept introduction: There are 20 amino acids present in nature. These are arginine, histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, valine, alanine, asparagines, aspartic acid, cysteine, glutamic acid, glutamine, glycine, proline, serine, and tyrosine. Only two of the twenty amino acids have a sulfur atom in their structure. The two amino acids are cysteine and methionine. The structure of cysteine is:

Cysteine gives pyruvate as the degradation product. The degradation of cysteine is a two-step process.

Answer 9

(b)

Interpretation Introduction

Interpretation: To identify whether the statement “the molecule H2S is released in the first step of the degradation of the amino acid cysteine” concerning sulfur-containing amino acids is true or false.

Concept introduction: There are 20 amino acids present in nature. These are arginine, histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, valine, alanine, asparagines, aspartic acid, cysteine, glutamic acid, glutamine, glycine, proline, serine, and tyrosine. Only two of the twenty amino acids have a sulfur atom in their structure. The two amino acids are cysteine and methionine. The structure of cysteine is:

Cysteine gives pyruvate as the degradation product. The degradation of cysteine is a two-step process.

Answer 10

(c)

Interpretation Introduction

Interpretation: To identify whether the statement “the first step in the synthesis of cysteine from serine is an activation step” concerning sulfur-containing amino acids is true or false.

Concept introduction: There are 20 amino acids present in nature. Only two of the twenty amino acids have a sulfur atom in their structure. The two amino acids are cysteine and methionine. The structure of cysteine is:

Cysteine is biosynthesized from serine that involves two steps.

Answer 11

(c)

Interpretation Introduction

Interpretation: To identify whether the statement “the first step in the synthesis of cysteine from serine is an activation step” concerning sulfur-containing amino acids is true or false.

Concept introduction: There are 20 amino acids present in nature. Only two of the twenty amino acids have a sulfur atom in their structure. The two amino acids are cysteine and methionine. The structure of cysteine is:

Cysteine is biosynthesized from serine that involves two steps.

Answer 12

(d)

Interpretation Introduction

Interpretation: To identify whether the statement “in the synthesis of cysteine from serine it is H2S molecule that supplies the sulfur” concerning sulfur-containing amino acids is true or false.

Concept introduction: There are 20 amino acids present in nature. Only two of the twenty amino acids have a sulfur atom in their structure. The two amino acids are cysteine and methionine. The structure of cysteine is:

Cysteine is biosynthesized from serine that involves two steps.

Answer 13

(d)

Interpretation Introduction

Interpretation: To identify whether the statement “in the synthesis of cysteine from serine it is H2S molecule that supplies the sulfur” concerning sulfur-containing amino acids is true or false.

Concept introduction: There are 20 amino acids present in nature. Only two of the twenty amino acids have a sulfur atom in their structure. The two amino acids are cysteine and methionine. The structure of cysteine is:

Cysteine is biosynthesized from serine that involves two steps.

Answer 14

Expert Solution & Answer

Answer 15

Expert Solution & Answer

Answer 16

Want to see the full answer?

Check out a sample textbook solution

See solution

Answer 17

Ch. 26.1 - Which of the following statements about dietary...Ch. 26.1 - Dietary protein materials as they leave the...Ch. 26.1 - The inactive form of pepsin is converted to its...Ch. 26.1 - Which of the following is not a proteolytic...Ch. 26.2 - The dominant use for the amino acids of the amino...Ch. 26.2 - The most abundant amino acid in the amino acid...Ch. 26.2 - Prob. 3QQ Ch. 26.3 - Prob. 1QQ Ch. 26.3 - Prob. 2QQ Ch. 26.3 - The net effect of transamination is to collect the...

Solution Summary: The author identifies whether the statement "cysteine and serine are standard amino acids that contain the element sulfur" is true or false.

Concept explainers

Videos

Want to see the full answer?

Chapter 26 Solutions