To identify whether the statement “gastrin is a hormone released by stomach mucosa cells” relating to protein digestion is true or false. Concept introduction: Proteins are natural biopolymers. Amino acids are the main building block of protein molecules. A large number of amino acids condense together to form a polypeptide chain. A large polypeptide chain is called protein. The digestion of dietary protein starts in the stomach and is completed in the small intestine. It does not start in the mouth because saliva present in the mouth does not contain an effective enzyme to break down the protein. The flow chart for protein digestion in the human body is as follows:

Question

Q4: Rank the relative nucleophilicity of halide ions in water solution and DMF solution, respectively. F CI Br | Q5: Determine which of the substrates will and will not react with NaSCH3 in an SN2 reaction to have a reasonable yield of product. NH2 Br Br Br OH Br

Answer 1

Question

Chapter 15, Problem 15.6EP

(a)

Interpretation Introduction

Interpretation: To identify whether the statement “gastrin is a hormone released by stomach mucosa cells” relating to protein digestion is true or false.

Concept introduction: Proteins are natural biopolymers. Amino acids are the main building block of protein molecules. A large number of amino acids condense together to form a polypeptide chain. A large polypeptide chain is called protein. The digestion of dietary protein starts in the stomach and is completed in the small intestine. It does not start in the mouth because saliva present in the mouth does not contain an effective enzyme to break down the protein. The flow chart for protein digestion in the human body is as follows:

(b)

Interpretation Introduction

Interpretation: To identify whether the statement “approximately 90 % of protein digestion occurs in the small intestine” relating to protein digestion is true or false.

Concept introduction: Proteins are natural biopolymers. Amino acids are the main building block of protein molecules. A large number of amino acids condense together to form a polypeptide chain. A large polypeptide chain is called protein. The digestion of dietary protein starts in the stomach and is completed in the small intestine. It does not start in the mouth because saliva present in the mouth does not contain an effective enzyme to break down the protein. The flow chart for protein digestion in the human body is as follows:

(c)

Interpretation Introduction

Interpretation: To identify whether the statement “hydrochloric acid functions as a denaturing agent in the stomach” relating to protein digestion is true or false.

Concept introduction: Proteins are natural biopolymers. Amino acids are the main building block of protein molecules. A large number of amino acids condense together to form a polypeptide chain. A large polypeptide chain is called protein. The digestion of dietary protein starts in the stomach and is completed in the small intestine. It does not start in the mouth because saliva present in the mouth does not contain an effective enzyme to break down the protein. The flow chart for protein digestion in the human body is as follows:

(d)

Interpretation Introduction

Interpretation: To identify whether the statement “pancreatic digestive enzymes include carboxypeptidase and aminopeptidase” relating to protein digestion is true or false.

Concept introduction: Proteins are natural biopolymers. Amino acids are the main building block of protein molecules. A large number of amino acids condense together to form a polypeptide chain. A large polypeptide chain is called protein. The digestion of dietary protein starts in the stomach and is completed in the small intestine. It does not start in the mouth because saliva present in the mouth does not contain an effective enzyme to break down the protein.

The flow chart for protein digestion in the human body is as follows:

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Q4: Rank the relative nucleophilicity of halide ions in water solution and DMF solution, respectively. F CI Br | Q5: Determine which of the substrates will and will not react with NaSCH3 in an SN2 reaction to have a reasonable yield of product. NH2 Br Br Br OH Br

Q7: Rank the following groups in order of basicity, nucleophilicity, and leaving group ability. a) H₂O, OH, CH3COOT b) NH3, H₂O, H₂S

Q8: Rank the following compounds in order of increasing reactivity in a nucleophilic substitution reaction with CN as the nucleophile. Br A B NH2 LL F C D OH CI LLI E Q9: Complete the missing entities for following reactions (e.g., major product(s), reactants, and/or solvents) for the SN2 reactions to occur efficiently. Include curved-arrow mechanism for reactions a) to d). a) H "Cl D + -OCH 3 Page 3 of 5

Answer 2

Question

Chapter 15, Problem 15.6EP

(a)

Interpretation Introduction

Interpretation: To identify whether the statement “gastrin is a hormone released by stomach mucosa cells” relating to protein digestion is true or false.

Concept introduction: Proteins are natural biopolymers. Amino acids are the main building block of protein molecules. A large number of amino acids condense together to form a polypeptide chain. A large polypeptide chain is called protein. The digestion of dietary protein starts in the stomach and is completed in the small intestine. It does not start in the mouth because saliva present in the mouth does not contain an effective enzyme to break down the protein. The flow chart for protein digestion in the human body is as follows:

(b)

Interpretation Introduction

Interpretation: To identify whether the statement “approximately 90 % of protein digestion occurs in the small intestine” relating to protein digestion is true or false.

Concept introduction: Proteins are natural biopolymers. Amino acids are the main building block of protein molecules. A large number of amino acids condense together to form a polypeptide chain. A large polypeptide chain is called protein. The digestion of dietary protein starts in the stomach and is completed in the small intestine. It does not start in the mouth because saliva present in the mouth does not contain an effective enzyme to break down the protein. The flow chart for protein digestion in the human body is as follows:

(c)

Interpretation Introduction

Interpretation: To identify whether the statement “hydrochloric acid functions as a denaturing agent in the stomach” relating to protein digestion is true or false.

Concept introduction: Proteins are natural biopolymers. Amino acids are the main building block of protein molecules. A large number of amino acids condense together to form a polypeptide chain. A large polypeptide chain is called protein. The digestion of dietary protein starts in the stomach and is completed in the small intestine. It does not start in the mouth because saliva present in the mouth does not contain an effective enzyme to break down the protein. The flow chart for protein digestion in the human body is as follows:

(d)

Interpretation Introduction

Interpretation: To identify whether the statement “pancreatic digestive enzymes include carboxypeptidase and aminopeptidase” relating to protein digestion is true or false.

Concept introduction: Proteins are natural biopolymers. Amino acids are the main building block of protein molecules. A large number of amino acids condense together to form a polypeptide chain. A large polypeptide chain is called protein. The digestion of dietary protein starts in the stomach and is completed in the small intestine. It does not start in the mouth because saliva present in the mouth does not contain an effective enzyme to break down the protein.

The flow chart for protein digestion in the human body is as follows:

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Answer 3

Question

Chapter 15, Problem 15.6EP

(a)

Interpretation Introduction

Interpretation: To identify whether the statement “gastrin is a hormone released by stomach mucosa cells” relating to protein digestion is true or false.

Concept introduction: Proteins are natural biopolymers. Amino acids are the main building block of protein molecules. A large number of amino acids condense together to form a polypeptide chain. A large polypeptide chain is called protein. The digestion of dietary protein starts in the stomach and is completed in the small intestine. It does not start in the mouth because saliva present in the mouth does not contain an effective enzyme to break down the protein. The flow chart for protein digestion in the human body is as follows:

(b)

Interpretation Introduction

Interpretation: To identify whether the statement “approximately 90 % of protein digestion occurs in the small intestine” relating to protein digestion is true or false.

Concept introduction: Proteins are natural biopolymers. Amino acids are the main building block of protein molecules. A large number of amino acids condense together to form a polypeptide chain. A large polypeptide chain is called protein. The digestion of dietary protein starts in the stomach and is completed in the small intestine. It does not start in the mouth because saliva present in the mouth does not contain an effective enzyme to break down the protein. The flow chart for protein digestion in the human body is as follows:

(c)

Interpretation Introduction

Interpretation: To identify whether the statement “hydrochloric acid functions as a denaturing agent in the stomach” relating to protein digestion is true or false.

Concept introduction: Proteins are natural biopolymers. Amino acids are the main building block of protein molecules. A large number of amino acids condense together to form a polypeptide chain. A large polypeptide chain is called protein. The digestion of dietary protein starts in the stomach and is completed in the small intestine. It does not start in the mouth because saliva present in the mouth does not contain an effective enzyme to break down the protein. The flow chart for protein digestion in the human body is as follows:

(d)

Interpretation Introduction

Interpretation: To identify whether the statement “pancreatic digestive enzymes include carboxypeptidase and aminopeptidase” relating to protein digestion is true or false.

Concept introduction: Proteins are natural biopolymers. Amino acids are the main building block of protein molecules. A large number of amino acids condense together to form a polypeptide chain. A large polypeptide chain is called protein. The digestion of dietary protein starts in the stomach and is completed in the small intestine. It does not start in the mouth because saliva present in the mouth does not contain an effective enzyme to break down the protein.

The flow chart for protein digestion in the human body is as follows:

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Answer 4

Question

Chapter 15, Problem 15.6EP

(a)

Interpretation Introduction

Interpretation: To identify whether the statement “gastrin is a hormone released by stomach mucosa cells” relating to protein digestion is true or false.

Concept introduction: Proteins are natural biopolymers. Amino acids are the main building block of protein molecules. A large number of amino acids condense together to form a polypeptide chain. A large polypeptide chain is called protein. The digestion of dietary protein starts in the stomach and is completed in the small intestine. It does not start in the mouth because saliva present in the mouth does not contain an effective enzyme to break down the protein. The flow chart for protein digestion in the human body is as follows:

(b)

Interpretation Introduction

Interpretation: To identify whether the statement “approximately 90 % of protein digestion occurs in the small intestine” relating to protein digestion is true or false.

Concept introduction: Proteins are natural biopolymers. Amino acids are the main building block of protein molecules. A large number of amino acids condense together to form a polypeptide chain. A large polypeptide chain is called protein. The digestion of dietary protein starts in the stomach and is completed in the small intestine. It does not start in the mouth because saliva present in the mouth does not contain an effective enzyme to break down the protein. The flow chart for protein digestion in the human body is as follows:

(c)

Interpretation Introduction

Interpretation: To identify whether the statement “hydrochloric acid functions as a denaturing agent in the stomach” relating to protein digestion is true or false.

Concept introduction: Proteins are natural biopolymers. Amino acids are the main building block of protein molecules. A large number of amino acids condense together to form a polypeptide chain. A large polypeptide chain is called protein. The digestion of dietary protein starts in the stomach and is completed in the small intestine. It does not start in the mouth because saliva present in the mouth does not contain an effective enzyme to break down the protein. The flow chart for protein digestion in the human body is as follows:

(d)

Interpretation Introduction

Interpretation: To identify whether the statement “pancreatic digestive enzymes include carboxypeptidase and aminopeptidase” relating to protein digestion is true or false.

Concept introduction: Proteins are natural biopolymers. Amino acids are the main building block of protein molecules. A large number of amino acids condense together to form a polypeptide chain. A large polypeptide chain is called protein. The digestion of dietary protein starts in the stomach and is completed in the small intestine. It does not start in the mouth because saliva present in the mouth does not contain an effective enzyme to break down the protein.

The flow chart for protein digestion in the human body is as follows:

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Answer 5

Chapter 15, Problem 15.6EP

(a)

Interpretation Introduction

Interpretation: To identify whether the statement “gastrin is a hormone released by stomach mucosa cells” relating to protein digestion is true or false.

Concept introduction: Proteins are natural biopolymers. Amino acids are the main building block of protein molecules. A large number of amino acids condense together to form a polypeptide chain. A large polypeptide chain is called protein. The digestion of dietary protein starts in the stomach and is completed in the small intestine. It does not start in the mouth because saliva present in the mouth does not contain an effective enzyme to break down the protein. The flow chart for protein digestion in the human body is as follows:

(b)

Interpretation Introduction

Interpretation: To identify whether the statement “approximately 90 % of protein digestion occurs in the small intestine” relating to protein digestion is true or false.

Concept introduction: Proteins are natural biopolymers. Amino acids are the main building block of protein molecules. A large number of amino acids condense together to form a polypeptide chain. A large polypeptide chain is called protein. The digestion of dietary protein starts in the stomach and is completed in the small intestine. It does not start in the mouth because saliva present in the mouth does not contain an effective enzyme to break down the protein. The flow chart for protein digestion in the human body is as follows:

(c)

Interpretation Introduction

Interpretation: To identify whether the statement “hydrochloric acid functions as a denaturing agent in the stomach” relating to protein digestion is true or false.

Concept introduction: Proteins are natural biopolymers. Amino acids are the main building block of protein molecules. A large number of amino acids condense together to form a polypeptide chain. A large polypeptide chain is called protein. The digestion of dietary protein starts in the stomach and is completed in the small intestine. It does not start in the mouth because saliva present in the mouth does not contain an effective enzyme to break down the protein. The flow chart for protein digestion in the human body is as follows:

(d)

Interpretation Introduction

Interpretation: To identify whether the statement “pancreatic digestive enzymes include carboxypeptidase and aminopeptidase” relating to protein digestion is true or false.

Concept introduction: Proteins are natural biopolymers. Amino acids are the main building block of protein molecules. A large number of amino acids condense together to form a polypeptide chain. A large polypeptide chain is called protein. The digestion of dietary protein starts in the stomach and is completed in the small intestine. It does not start in the mouth because saliva present in the mouth does not contain an effective enzyme to break down the protein.

The flow chart for protein digestion in the human body is as follows:

Answer 6

Chapter 15, Problem 15.6EP

(a)

Interpretation Introduction

Interpretation: To identify whether the statement “gastrin is a hormone released by stomach mucosa cells” relating to protein digestion is true or false.

Concept introduction: Proteins are natural biopolymers. Amino acids are the main building block of protein molecules. A large number of amino acids condense together to form a polypeptide chain. A large polypeptide chain is called protein. The digestion of dietary protein starts in the stomach and is completed in the small intestine. It does not start in the mouth because saliva present in the mouth does not contain an effective enzyme to break down the protein. The flow chart for protein digestion in the human body is as follows:

Answer 7

Chapter 15, Problem 15.6EP

(a)

Interpretation Introduction

Interpretation: To identify whether the statement “gastrin is a hormone released by stomach mucosa cells” relating to protein digestion is true or false.

Concept introduction: Proteins are natural biopolymers. Amino acids are the main building block of protein molecules. A large number of amino acids condense together to form a polypeptide chain. A large polypeptide chain is called protein. The digestion of dietary protein starts in the stomach and is completed in the small intestine. It does not start in the mouth because saliva present in the mouth does not contain an effective enzyme to break down the protein. The flow chart for protein digestion in the human body is as follows:

Answer 8

(b)

Interpretation Introduction

Interpretation: To identify whether the statement “approximately 90 % of protein digestion occurs in the small intestine” relating to protein digestion is true or false.

Concept introduction: Proteins are natural biopolymers. Amino acids are the main building block of protein molecules. A large number of amino acids condense together to form a polypeptide chain. A large polypeptide chain is called protein. The digestion of dietary protein starts in the stomach and is completed in the small intestine. It does not start in the mouth because saliva present in the mouth does not contain an effective enzyme to break down the protein. The flow chart for protein digestion in the human body is as follows:

Answer 9

(b)

Interpretation Introduction

Interpretation: To identify whether the statement “approximately 90 % of protein digestion occurs in the small intestine” relating to protein digestion is true or false.

Concept introduction: Proteins are natural biopolymers. Amino acids are the main building block of protein molecules. A large number of amino acids condense together to form a polypeptide chain. A large polypeptide chain is called protein. The digestion of dietary protein starts in the stomach and is completed in the small intestine. It does not start in the mouth because saliva present in the mouth does not contain an effective enzyme to break down the protein. The flow chart for protein digestion in the human body is as follows:

Answer 10

(c)

Interpretation Introduction

Interpretation: To identify whether the statement “hydrochloric acid functions as a denaturing agent in the stomach” relating to protein digestion is true or false.

Concept introduction: Proteins are natural biopolymers. Amino acids are the main building block of protein molecules. A large number of amino acids condense together to form a polypeptide chain. A large polypeptide chain is called protein. The digestion of dietary protein starts in the stomach and is completed in the small intestine. It does not start in the mouth because saliva present in the mouth does not contain an effective enzyme to break down the protein. The flow chart for protein digestion in the human body is as follows:

Answer 11

(c)

Interpretation Introduction

Interpretation: To identify whether the statement “hydrochloric acid functions as a denaturing agent in the stomach” relating to protein digestion is true or false.

Concept introduction: Proteins are natural biopolymers. Amino acids are the main building block of protein molecules. A large number of amino acids condense together to form a polypeptide chain. A large polypeptide chain is called protein. The digestion of dietary protein starts in the stomach and is completed in the small intestine. It does not start in the mouth because saliva present in the mouth does not contain an effective enzyme to break down the protein. The flow chart for protein digestion in the human body is as follows:

Answer 12

(d)

Interpretation Introduction

Interpretation: To identify whether the statement “pancreatic digestive enzymes include carboxypeptidase and aminopeptidase” relating to protein digestion is true or false.

Concept introduction: Proteins are natural biopolymers. Amino acids are the main building block of protein molecules. A large number of amino acids condense together to form a polypeptide chain. A large polypeptide chain is called protein. The digestion of dietary protein starts in the stomach and is completed in the small intestine. It does not start in the mouth because saliva present in the mouth does not contain an effective enzyme to break down the protein.

The flow chart for protein digestion in the human body is as follows:

Answer 13

(d)

Interpretation Introduction

Interpretation: To identify whether the statement “pancreatic digestive enzymes include carboxypeptidase and aminopeptidase” relating to protein digestion is true or false.

Concept introduction: Proteins are natural biopolymers. Amino acids are the main building block of protein molecules. A large number of amino acids condense together to form a polypeptide chain. A large polypeptide chain is called protein. The digestion of dietary protein starts in the stomach and is completed in the small intestine. It does not start in the mouth because saliva present in the mouth does not contain an effective enzyme to break down the protein.

The flow chart for protein digestion in the human body is as follows:

Answer 14

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Ch. 15.1 - Which of the following statements about dietary...Ch. 15.1 - Dietary protein materials as they leave the...Ch. 15.1 - Prob. 3QQ Ch. 15.1 - Which of the following is not a proteolytic...Ch. 15.2 - The dominant use for the amino acids of the amino...Ch. 15.2 - The most abundant amino acid in the amino acid...Ch. 15.2 - Prob. 3QQ Ch. 15.3 - The reactants in a transamination reaction are a....Ch. 15.3 - Prob. 2QQ Ch. 15.3 - Prob. 3QQ

Solution Summary: The author explains that proteins are natural biopolymers and amino acids are the main building block of protein molecules.

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