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:

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Answer 1

Question

Chapter 26, Problem 26.6EP

(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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Which of the following is an unregulated process in the digestive tract? a. secretion of cholecystokinin (CCK) by the duodenal mucosa b. absorption of amino acids across the epithelium of the small intestine c. release of bicarbonate ion (HCO3–) by pancreatic duct cells d. peristalsis in the stomach

The normal mechanism of defecation involves:A. Stretch receptors located in the duodenum and jejunum initiate a long-lasting reflex that relaxes the internal anal sphincter several hours after food initially passes from the stomach to the intestines.B. Stretch receptors located in the rectal wall initiate the defecation reflex inresponse to an incoming mass movement.C. The defecation reflex involves contraction of the rectal wall and simultaneous relaxation of the internal anal sphincter.D. Digestive fluids secreted from the pancreas and gall bladder contain enzymesthat act on the smooth muscle of the intestine, stimulating peristalsis.E. Conscious signals from the cortex will allow for relaxation of the external anal sphincter (when appropriate!).

Which of the following is true regarding digestion? A. The first segment of the alimentary tract is the duodenum. B. Amylase hydrolyzes starches into simple sugars. C. Bile hydrolyzes amylase into simple sugars. D. Trypsin and chymotrypsin degrade lipids into free fatty acids. E. All of the above answer choices correctly answer the question.

Answer 2

Question

Chapter 26, Problem 26.6EP

(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 26, Problem 26.6EP

(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 26, Problem 26.6EP

(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 26, Problem 26.6EP

(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 26, Problem 26.6EP

(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 26, Problem 26.6EP

(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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Answer 15

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Answer 16

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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 explains that proteins are natural biopolymers and amino acids are the main building block of protein molecules.

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