The food processing in animals occurs in four stages, namely, ingestion, digestion, absorption, and elimination. Ingestion is the act of eating food. Digestion is the process of mechanical and chemical breakdown of food into smaller molecules for absorption. In the absorption process, the small molecules of simple sugars and amino acids are absorbed by the cells. Elimination involves the passing out of undigested material from the digestive system .

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Definition Definition Organ system that helps in the digestion of food by mechanical and biochemical processes. The digestive system breaks down food into simpler components that enable the body to then absorb or transport nutrients. The human digestive system includes the gastrointestinal tract or alimentary canal and the associate glands. The organs of the gastrointestinal tract include the mouth, pharynx, esophagus, stomach, small intestine, and large intestine. The associated glands include salivary glands, liver, gallbladder, and pancreas.

Chapter 41, Problem 6TYK

Summary Introduction

Introduction: The food processing in animals occurs in four stages, namely, ingestion, digestion, absorption, and elimination. Ingestion is the act of eating food. Digestion is the process of mechanical and chemical breakdown of food into smaller molecules for absorption. In the absorption process, the small molecules of simple sugars and amino acids are absorbed by the cells. Elimination involves the passing out of undigested material from the digestive system.

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A scientist studies the production of a key digestive enzyme in silk moths. The moths have one gene for this enzyme, and the scientist extracts mRNA transcribed from this gene as well as protein translated from it. The gene has three introns in its sequence. If the same scientist extracts the DNA for this gene and finds that it becomes methylated over the life of the organism, how will digestion change over time? A. It will occur at lower pH. B. It will rely more on this enzyme over time. C. It will use methylated copies of the enzyme. D. It will involve a lesser quantity of this enzyme over time.

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Definition Definition Organ system that helps in the digestion of food by mechanical and biochemical processes. The digestive system breaks down food into simpler components that enable the body to then absorb or transport nutrients. The human digestive system includes the gastrointestinal tract or alimentary canal and the associate glands. The organs of the gastrointestinal tract include the mouth, pharynx, esophagus, stomach, small intestine, and large intestine. The associated glands include salivary glands, liver, gallbladder, and pancreas.

Chapter 41, Problem 6TYK

Summary Introduction

Introduction: The food processing in animals occurs in four stages, namely, ingestion, digestion, absorption, and elimination. Ingestion is the act of eating food. Digestion is the process of mechanical and chemical breakdown of food into smaller molecules for absorption. In the absorption process, the small molecules of simple sugars and amino acids are absorbed by the cells. Elimination involves the passing out of undigested material from the digestive system.

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Answer 3

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Definition Definition Organ system that helps in the digestion of food by mechanical and biochemical processes. The digestive system breaks down food into simpler components that enable the body to then absorb or transport nutrients. The human digestive system includes the gastrointestinal tract or alimentary canal and the associate glands. The organs of the gastrointestinal tract include the mouth, pharynx, esophagus, stomach, small intestine, and large intestine. The associated glands include salivary glands, liver, gallbladder, and pancreas.

Chapter 41, Problem 6TYK

Summary Introduction

Introduction: The food processing in animals occurs in four stages, namely, ingestion, digestion, absorption, and elimination. Ingestion is the act of eating food. Digestion is the process of mechanical and chemical breakdown of food into smaller molecules for absorption. In the absorption process, the small molecules of simple sugars and amino acids are absorbed by the cells. Elimination involves the passing out of undigested material from the digestive system.

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Answer 4

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Definition Definition Organ system that helps in the digestion of food by mechanical and biochemical processes. The digestive system breaks down food into simpler components that enable the body to then absorb or transport nutrients. The human digestive system includes the gastrointestinal tract or alimentary canal and the associate glands. The organs of the gastrointestinal tract include the mouth, pharynx, esophagus, stomach, small intestine, and large intestine. The associated glands include salivary glands, liver, gallbladder, and pancreas.

Chapter 41, Problem 6TYK

Summary Introduction