13) Two hours after Joe finishes eating his pizza A) water soluble materials lik
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13) Two hours after Joe finishes eating his pizza A) water soluble materials like proteins are absorbed into the capillaries of the stomach. B) secretin is released from the gastroendocrine cells stimulating the release of pancreatic buffers into the stomach. C) rhythmic contractions of the stomach (mixing waves) facilitate the absorption of fats into the lacteals located in the rugae of the stomach. D) the pH of his blood goes down (acidosis). E) rhythmic contractions of the stomach (mixing waves), pepsin, and acid secreted by the parietal cells aid the digestion of protein.Explanation / Answer
Pizza enters the mouth and is chewed to break it down into smaller particles that are easier to digest.
Saliva, secreted by the salivary glands, contains the enzyme amylase.
Amylase then breaks down the food from polysaccharides to disaccharides.
After the mouth, food travels down the esophagus in the form of a bolus.
Food enters the stomach where it is further broken apart by gastric acid, pepsin and other digestive enzymes to break down proteins.
After being processed in the stomach, food is passed to the small intestine where is is mixed with bile, pancreatic juice, and intestinal juice.
Bile allows fat to be absorbed into the body.
Digestion of Pizza Carbohydrates Protein Recipe The dough in the pizza is broken down into starch by amylase.
Amylase hydrolyzes starch to alpha-dextrin, which are then digested by gluco-amylase to maltose and maltotriose.
The products of digestion of alpha-amylase and alpha-dextrinase, along with dietary disaccharides are hydrolyzed to their corresponding monosaccharides by enzymes (maltase, sucrase and lactase) present in the brush border of small intestine.
During the phase of carbohydrate absorption, fructose is transported into the intestinal cell's cytosol, glucose and galactose competes with other Na + transporter required for operation.
From the cytosol, monosaccharides pass into the capillaries by simple or facilitated diffusion. Fats The fats in the meat and cheese of the pizza belong to a class of macronutrients called lipids.
Unfortunately, dietary fats do not dissolve in water, as a result they are not easily broken down by fat-digesting enzymes (lipase) in the watery content of the gastrointestinal tract. Thus fats tend to take longer to digest than carbohydrates or proteins.
Breakdown of fat occurs when the fats reach the duodenum.
In order for fats to be digested and absorbed, the complex fat molecules must be broken down into smaller molecules.
Lipase chops up lipid molecules into fatty acid molecules and glycerol molecules.
Protein comes from the meat and the cheese in the pizza.
Digestion typically begins in the stomach when pepsinogen is converted to pepsin by the action of HCl, and continued by trypsin in the intestine.
Before the absorption in the small intestine, most proteins are already reduced to single amino acid or peptides of several amino acids.
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