Digestive System Functions

<p>Enteropeptidase (B)</p> Signup and view all the answers

<p>Enzymes attached to the surface of epithelial cells in the digestive tract (D)</p> Signup and view all the answers

<p>It stops due to denaturation of the enzyme (C)</p> Signup and view all the answers

<p>Proteins (C)</p> Signup and view all the answers

<p>They remain inactive until released into the digestive tract (B)</p> Signup and view all the answers

<p>Pancreatic amylase (D)</p> Signup and view all the answers

<p>Glucose, fructose, galactose (A)</p> Signup and view all the answers

<p>Broken down into monoglycerides and free fatty acids (B)</p> Signup and view all the answers

<p>To digest carbohydrates into monosaccharides (B)</p> Signup and view all the answers

<p>They are exocytosed into interstitial fluid (A)</p> Signup and view all the answers

<p>They are absorbed in the form of di- and tripeptides (B), They diffuse across the epithelial cells (D)</p> Signup and view all the answers

<p>Provide fiber (C)</p> Signup and view all the answers

<p>Epithelial cells (A)</p> Signup and view all the answers

An enzyme that continues carbohydrate digestion

Digestive enzymes on the surface of small intestine cells

Brush-border enzymes that digest disaccharides (into monosaccharides)

Glucose, fructose, and galactose enter the bloodstream from the small intestine

Amino acids, dipeptides, and tripeptides are absorbed into the bloodstream

Fat molecules (monoglycerides/free fatty acids) are packaged with cholesterol & proteins in the small intestine

Fat particles enter the lymph system, then the bloodstream

The cell's metabolic state determines how absorbed nutrients are used

Mechanical and enzymatic breakdown of food, starting with chewing and saliva secretion containing enzymes for carbs and fats.

Enzymatic digestion of proteins begins, and some fat digestion continues, with acid secretion aiding protein breakdown. Carb digestion stops.

Primary site for digestion and absorption of nutrients (like glucose) in the digestive tract; most of the enzymes are from the pancreas.

Inactive enzymes secreted by the pancreas that are activated later in the digestive tract to prevent self-digestion.

Trypsinogen (a proenzyme) is activated into trypsin by enteropeptidase, an enzyme on the small intestine cell membrane.

Trypsin, activated from trypsinogen, further digests proteins and activates other pancreatic proenzymes.

Carbohydrates, proteins, and fats form the main types of ingested molecules that must be broken down, digested and absorbed.