(a) To explain: The model that supports following statement, “previous work had shown that different taste receptor proteins are expressed in non-overlapping sets of taste receptor cells”. Introduction: Protein is a biomolecule which is made of repeating subunits of amino acids. There are four different types of structure of protein such as primary, secondary, tertiary and quaternary.

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Answer 1

Question

Chapter 12, Problem 23DAP

Summary Introduction

(a)

To explain: The model that supports following statement, “previous work had shown that different taste receptor proteins are expressed in non-overlapping sets of taste receptor cells”.

Introduction:

Protein is a biomolecule which is made of repeating subunits of amino acids. There are four different types of structure of protein such as primary, secondary, tertiary and quaternary.

(b)

Summary Introduction

To determine: The issues that address this experiment and also conclude its results.

Introduction:

Sensory cells are the type of cells that receive information from external stimuli with the help of receptors found their surface. This external stimulus is transmitted from sensory cells to brain through nerves.

(c)

Summary Introduction

To determine: Whether the given data is consistent with umami taste receptor that consists of heterodimer of T1R1 and T1R3.

Introduction:

Taste receptor T1R1 is a G-protein coupled receptor while T1R3 contains subunit of both sweet taste receptor and umami taste receptor. Taste receptors are type of receptor cells that helps to stimulate taste sensations.

(d)

Summary Introduction

To determine: Which model of taste encoding supports this result.

Introduction:

Tongue is the muscular organ found in the mouth. It contains taste buds which is consist of taste receptors such as sour, salty, bitter, sweet and umami. The taste receptors help to determine the different taste of food.

(e)

Summary Introduction

To determine: Whether the given data is consistent with sweet taste receptor of a heterodimer consisting of T1R2 and T1R3.

Introduction:

Taste receptors are defined as type of receptor that facilitates sensation of taste. They are found in taste buds and taste receptor cells are also known as gustatory cells. They are located around small structures on tongue called papillae.

(f)

Summary Introduction

To determine: How high sucrose concentration complicate idea of heterodimeric system.

Introduction:

Sucrose is a carbohydrate (disaccharide) which is made up of glucose and fructose monomeric units. It is a type of non-reducing sugar. It is obtained naturally by plants. It is found in leaves, fruits, flower and roots of plants.

(g)

Summary Introduction

To determine: Whether the results of the experiment provides strength to the conclusion about the mechanisms of taste sensation.

Introduction:

Sensory organs include, nose, ear, eyes, skin and tongue. It contains receptors that are specialized cells and able to convert external and internal stimuli into nerve impulse which is transmitted to brain and interpreted into information.

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The beta-lactamase hydrolyzes the lactam-ring in penicillin. Describe the mechanism of hydrolysis, insuring to include the involvement of S, D, & K in the reaction sequence. Please help

To map the active site of beta-lactamase, the enzyme was hydrolyzed with trypsin to yield a hexapeptide (P1) with the following amino acids. Glu, Lys, Leu, Phe, Met, and Ser. Treatment of P1 with phenyl isothiocyanate yielded a PTH derivative of phenylalanine and a peptide (P2). Treatment of P1 with cyanogenbromide gave an acidic tetrapeptide (P3) and a dipeptide (P4).Treatment of P2 with 1-fluoro-2,4-dinitrobenzene, followed by complete hydrolysis, yields N-2,4-dinitrophenyl-Glu. P1, P2, and P3 contain the active site serine. Why doesn't D in this hexapeptide not participate in the hydrolysis of the beta-lactam ring even though S, K, and D are involved in the catalyst?

To map the active site of -lactamase, the enzyme was hydrolyzed with trypsin to yield a hexapeptide (P1) with the following amino acids. Glu, Lys, Leu, Phe, Met, and Ser. Treatment of P1 with phenyl isothiocyanate yielded a PTH derivative of phenylalanine and a peptide (P2). Treatment of P1 with cyanogenbromide gave an acidic tetrapeptide (P3) and a dipeptide (P4).Treatment of P2 with 1-fluoro-2,4-dinitrobenzene, followed by complete hydrolysis, yields N-2,4-dinitrophenyl-Glu. P1, P2, and P3 contain the active site serine. Using the experimental results described above derive the primary sequence of the active site hexapeptide. Please help!

Answer 2

Question

Chapter 12, Problem 23DAP

Summary Introduction

(a)

To explain: The model that supports following statement, “previous work had shown that different taste receptor proteins are expressed in non-overlapping sets of taste receptor cells”.

Introduction:

Protein is a biomolecule which is made of repeating subunits of amino acids. There are four different types of structure of protein such as primary, secondary, tertiary and quaternary.

(b)

Summary Introduction

To determine: The issues that address this experiment and also conclude its results.

Introduction:

Sensory cells are the type of cells that receive information from external stimuli with the help of receptors found their surface. This external stimulus is transmitted from sensory cells to brain through nerves.

(c)

Summary Introduction

To determine: Whether the given data is consistent with umami taste receptor that consists of heterodimer of T1R1 and T1R3.

Introduction:

Taste receptor T1R1 is a G-protein coupled receptor while T1R3 contains subunit of both sweet taste receptor and umami taste receptor. Taste receptors are type of receptor cells that helps to stimulate taste sensations.

(d)

Summary Introduction

To determine: Which model of taste encoding supports this result.

Introduction:

Tongue is the muscular organ found in the mouth. It contains taste buds which is consist of taste receptors such as sour, salty, bitter, sweet and umami. The taste receptors help to determine the different taste of food.

(e)

Summary Introduction

To determine: Whether the given data is consistent with sweet taste receptor of a heterodimer consisting of T1R2 and T1R3.

Introduction:

Taste receptors are defined as type of receptor that facilitates sensation of taste. They are found in taste buds and taste receptor cells are also known as gustatory cells. They are located around small structures on tongue called papillae.

(f)

Summary Introduction

To determine: How high sucrose concentration complicate idea of heterodimeric system.

Introduction:

Sucrose is a carbohydrate (disaccharide) which is made up of glucose and fructose monomeric units. It is a type of non-reducing sugar. It is obtained naturally by plants. It is found in leaves, fruits, flower and roots of plants.

(g)

Summary Introduction

To determine: Whether the results of the experiment provides strength to the conclusion about the mechanisms of taste sensation.

Introduction:

Sensory organs include, nose, ear, eyes, skin and tongue. It contains receptors that are specialized cells and able to convert external and internal stimuli into nerve impulse which is transmitted to brain and interpreted into information.

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Answer 3

Question

Chapter 12, Problem 23DAP

Summary Introduction

(a)

To explain: The model that supports following statement, “previous work had shown that different taste receptor proteins are expressed in non-overlapping sets of taste receptor cells”.

Introduction:

Protein is a biomolecule which is made of repeating subunits of amino acids. There are four different types of structure of protein such as primary, secondary, tertiary and quaternary.

(b)

Summary Introduction

To determine: The issues that address this experiment and also conclude its results.

Introduction:

Sensory cells are the type of cells that receive information from external stimuli with the help of receptors found their surface. This external stimulus is transmitted from sensory cells to brain through nerves.

(c)

Summary Introduction

To determine: Whether the given data is consistent with umami taste receptor that consists of heterodimer of T1R1 and T1R3.

Introduction:

Taste receptor T1R1 is a G-protein coupled receptor while T1R3 contains subunit of both sweet taste receptor and umami taste receptor. Taste receptors are type of receptor cells that helps to stimulate taste sensations.

(d)

Summary Introduction

To determine: Which model of taste encoding supports this result.

Introduction:

Tongue is the muscular organ found in the mouth. It contains taste buds which is consist of taste receptors such as sour, salty, bitter, sweet and umami. The taste receptors help to determine the different taste of food.

(e)

Summary Introduction

To determine: Whether the given data is consistent with sweet taste receptor of a heterodimer consisting of T1R2 and T1R3.

Introduction:

Taste receptors are defined as type of receptor that facilitates sensation of taste. They are found in taste buds and taste receptor cells are also known as gustatory cells. They are located around small structures on tongue called papillae.

(f)

Summary Introduction

To determine: How high sucrose concentration complicate idea of heterodimeric system.

Introduction:

Sucrose is a carbohydrate (disaccharide) which is made up of glucose and fructose monomeric units. It is a type of non-reducing sugar. It is obtained naturally by plants. It is found in leaves, fruits, flower and roots of plants.

(g)

Summary Introduction

To determine: Whether the results of the experiment provides strength to the conclusion about the mechanisms of taste sensation.

Introduction:

Sensory organs include, nose, ear, eyes, skin and tongue. It contains receptors that are specialized cells and able to convert external and internal stimuli into nerve impulse which is transmitted to brain and interpreted into information.

Expert Solution & Answer

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See solution

Answer 4

Question

Chapter 12, Problem 23DAP

Summary Introduction

(a)

To explain: The model that supports following statement, “previous work had shown that different taste receptor proteins are expressed in non-overlapping sets of taste receptor cells”.

Introduction:

Protein is a biomolecule which is made of repeating subunits of amino acids. There are four different types of structure of protein such as primary, secondary, tertiary and quaternary.

(b)

Summary Introduction

To determine: The issues that address this experiment and also conclude its results.

Introduction:

Sensory cells are the type of cells that receive information from external stimuli with the help of receptors found their surface. This external stimulus is transmitted from sensory cells to brain through nerves.

(c)

Summary Introduction

To determine: Whether the given data is consistent with umami taste receptor that consists of heterodimer of T1R1 and T1R3.

Introduction:

Taste receptor T1R1 is a G-protein coupled receptor while T1R3 contains subunit of both sweet taste receptor and umami taste receptor. Taste receptors are type of receptor cells that helps to stimulate taste sensations.

(d)

Summary Introduction

To determine: Which model of taste encoding supports this result.

Introduction:

Tongue is the muscular organ found in the mouth. It contains taste buds which is consist of taste receptors such as sour, salty, bitter, sweet and umami. The taste receptors help to determine the different taste of food.

(e)

Summary Introduction

To determine: Whether the given data is consistent with sweet taste receptor of a heterodimer consisting of T1R2 and T1R3.

Introduction:

Taste receptors are defined as type of receptor that facilitates sensation of taste. They are found in taste buds and taste receptor cells are also known as gustatory cells. They are located around small structures on tongue called papillae.

(f)

Summary Introduction

To determine: How high sucrose concentration complicate idea of heterodimeric system.

Introduction:

Sucrose is a carbohydrate (disaccharide) which is made up of glucose and fructose monomeric units. It is a type of non-reducing sugar. It is obtained naturally by plants. It is found in leaves, fruits, flower and roots of plants.

(g)

Summary Introduction

To determine: Whether the results of the experiment provides strength to the conclusion about the mechanisms of taste sensation.

Introduction:

Sensory organs include, nose, ear, eyes, skin and tongue. It contains receptors that are specialized cells and able to convert external and internal stimuli into nerve impulse which is transmitted to brain and interpreted into information.

Expert Solution & Answer

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Check out a sample textbook solution

See solution

Answer 5

Chapter 12, Problem 23DAP

Summary Introduction

(a)

To explain: The model that supports following statement, “previous work had shown that different taste receptor proteins are expressed in non-overlapping sets of taste receptor cells”.

Introduction:

Protein is a biomolecule which is made of repeating subunits of amino acids. There are four different types of structure of protein such as primary, secondary, tertiary and quaternary.

(b)

Summary Introduction

To determine: The issues that address this experiment and also conclude its results.

Introduction:

Sensory cells are the type of cells that receive information from external stimuli with the help of receptors found their surface. This external stimulus is transmitted from sensory cells to brain through nerves.

(c)

Summary Introduction

To determine: Whether the given data is consistent with umami taste receptor that consists of heterodimer of T1R1 and T1R3.

Introduction:

Taste receptor T1R1 is a G-protein coupled receptor while T1R3 contains subunit of both sweet taste receptor and umami taste receptor. Taste receptors are type of receptor cells that helps to stimulate taste sensations.

(d)

Summary Introduction

To determine: Which model of taste encoding supports this result.

Introduction:

Tongue is the muscular organ found in the mouth. It contains taste buds which is consist of taste receptors such as sour, salty, bitter, sweet and umami. The taste receptors help to determine the different taste of food.

(e)

Summary Introduction

To determine: Whether the given data is consistent with sweet taste receptor of a heterodimer consisting of T1R2 and T1R3.

Introduction:

Taste receptors are defined as type of receptor that facilitates sensation of taste. They are found in taste buds and taste receptor cells are also known as gustatory cells. They are located around small structures on tongue called papillae.

(f)

Summary Introduction

To determine: How high sucrose concentration complicate idea of heterodimeric system.

Introduction:

Sucrose is a carbohydrate (disaccharide) which is made up of glucose and fructose monomeric units. It is a type of non-reducing sugar. It is obtained naturally by plants. It is found in leaves, fruits, flower and roots of plants.

(g)

Summary Introduction

To determine: Whether the results of the experiment provides strength to the conclusion about the mechanisms of taste sensation.

Introduction:

Sensory organs include, nose, ear, eyes, skin and tongue. It contains receptors that are specialized cells and able to convert external and internal stimuli into nerve impulse which is transmitted to brain and interpreted into information.

Answer 6

Chapter 12, Problem 23DAP

Summary Introduction

(a)

To explain: The model that supports following statement, “previous work had shown that different taste receptor proteins are expressed in non-overlapping sets of taste receptor cells”.

Introduction:

Protein is a biomolecule which is made of repeating subunits of amino acids. There are four different types of structure of protein such as primary, secondary, tertiary and quaternary.

Answer 7

Chapter 12, Problem 23DAP

Summary Introduction

(a)

To explain: The model that supports following statement, “previous work had shown that different taste receptor proteins are expressed in non-overlapping sets of taste receptor cells”.

Introduction:

Protein is a biomolecule which is made of repeating subunits of amino acids. There are four different types of structure of protein such as primary, secondary, tertiary and quaternary.

Answer 8

(b)

Summary Introduction

To determine: The issues that address this experiment and also conclude its results.

Introduction:

Sensory cells are the type of cells that receive information from external stimuli with the help of receptors found their surface. This external stimulus is transmitted from sensory cells to brain through nerves.

Answer 9

(b)

Summary Introduction

To determine: The issues that address this experiment and also conclude its results.

Introduction:

Sensory cells are the type of cells that receive information from external stimuli with the help of receptors found their surface. This external stimulus is transmitted from sensory cells to brain through nerves.

Answer 10

(c)

Summary Introduction

To determine: Whether the given data is consistent with umami taste receptor that consists of heterodimer of T1R1 and T1R3.

Introduction:

Taste receptor T1R1 is a G-protein coupled receptor while T1R3 contains subunit of both sweet taste receptor and umami taste receptor. Taste receptors are type of receptor cells that helps to stimulate taste sensations.

Answer 11

(c)

Summary Introduction

To determine: Whether the given data is consistent with umami taste receptor that consists of heterodimer of T1R1 and T1R3.

Introduction:

Taste receptor T1R1 is a G-protein coupled receptor while T1R3 contains subunit of both sweet taste receptor and umami taste receptor. Taste receptors are type of receptor cells that helps to stimulate taste sensations.

Answer 12

(d)

Summary Introduction

To determine: Which model of taste encoding supports this result.

Introduction:

Tongue is the muscular organ found in the mouth. It contains taste buds which is consist of taste receptors such as sour, salty, bitter, sweet and umami. The taste receptors help to determine the different taste of food.

Answer 13

(d)

Summary Introduction

To determine: Which model of taste encoding supports this result.

Introduction:

Tongue is the muscular organ found in the mouth. It contains taste buds which is consist of taste receptors such as sour, salty, bitter, sweet and umami. The taste receptors help to determine the different taste of food.

Answer 14

(e)

Summary Introduction

To determine: Whether the given data is consistent with sweet taste receptor of a heterodimer consisting of T1R2 and T1R3.

Introduction:

Taste receptors are defined as type of receptor that facilitates sensation of taste. They are found in taste buds and taste receptor cells are also known as gustatory cells. They are located around small structures on tongue called papillae.

Answer 15

(e)

Summary Introduction

To determine: Whether the given data is consistent with sweet taste receptor of a heterodimer consisting of T1R2 and T1R3.

Introduction:

Taste receptors are defined as type of receptor that facilitates sensation of taste. They are found in taste buds and taste receptor cells are also known as gustatory cells. They are located around small structures on tongue called papillae.

Answer 16

(f)

Summary Introduction

To determine: How high sucrose concentration complicate idea of heterodimeric system.

Introduction:

Sucrose is a carbohydrate (disaccharide) which is made up of glucose and fructose monomeric units. It is a type of non-reducing sugar. It is obtained naturally by plants. It is found in leaves, fruits, flower and roots of plants.

Answer 17

(f)

Summary Introduction

To determine: How high sucrose concentration complicate idea of heterodimeric system.

Introduction:

Sucrose is a carbohydrate (disaccharide) which is made up of glucose and fructose monomeric units. It is a type of non-reducing sugar. It is obtained naturally by plants. It is found in leaves, fruits, flower and roots of plants.

Answer 18

(g)

Summary Introduction

To determine: Whether the results of the experiment provides strength to the conclusion about the mechanisms of taste sensation.

Introduction:

Sensory organs include, nose, ear, eyes, skin and tongue. It contains receptors that are specialized cells and able to convert external and internal stimuli into nerve impulse which is transmitted to brain and interpreted into information.

Answer 19

(g)

Summary Introduction

To determine: Whether the results of the experiment provides strength to the conclusion about the mechanisms of taste sensation.

Introduction:

Sensory organs include, nose, ear, eyes, skin and tongue. It contains receptors that are specialized cells and able to convert external and internal stimuli into nerve impulse which is transmitted to brain and interpreted into information.

Answer 20

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Answer 21

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Answer 22

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Answer 23

Ch. 12 - Prob. 1P Ch. 12 - Prob. 2P Ch. 12 - Prob. 3P Ch. 12 - Prob. 4P Ch. 12 - Prob. 5P Ch. 12 - Prob. 6P Ch. 12 - Prob. 7P Ch. 12 - Prob. 8P Ch. 12 - Prob. 9P Ch. 12 - Prob. 10P

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Chapter 12 Solutions