![]() The most likely reason that some of the vitamins and minerals in this supplement are found at less than 100% is it is dangerous to overdose on fat-soluble vitamins such as A and K. cellulose digestion in ruminant mammals occurs before the ingested foods reach the small intestine Analysis of jawbones from the skeletal remains of a vertebrate animal reveal its dietary patterns owing to the prevalence of specific kinds of teeth. Different types of food are eaten by various groups of animals, but it is usually true that _. Stomach cells are moderately well adapted to the acidity and protein-digesting activities in the stomach by having a thick, mucous secretion and active mitosis of epithelial cells. The cells that secrete the acidic components of stomach juices are the parietal cells of the stomach. The absorption of fats differs from that of carbohydrates in that the most absorbed fat first enters the lymphatic system, whereas carbohydrates directly enter the blood. The bile salts emulsify fats in the duodenum. Upon activation by stomach acidity, the secretions of the parietal cells initiate the digestion of protein in the stomach. mouth After ingestion by humans, the first category of macromolecules to be chemically digested by enzymes in the mouth is carbohydrates. For ingested foods, the first opportunity for enzymatic digestion occurs in the _. ![]() An advantage of a complete digestive system over a gastrovascular cavity is that the complete system allows for specialized regions with specialized functions. has only a single opening The large surface area in the gut directly facilitates absorption. ingestion → digestion → absorption → elimination The gastrovascular cavity differs from the alimentary canal in that only the gastrovascular cavity _. Choose the list that presents the four stages of food processing in the order in which they naturally occur. The fat-soluble vitamins include vitamin A. Certain nutrients are considered "essential" in the diets of some animals because these animals are not able to synthesize these nutrients. Free fatty acid absorption occurs in the small intestine. Choose the correct statement from the list below. Carbohydrate digestion begins in the mouth with salivary amylase. Proteins that are consumed in the diet are absorbed as individual amino acids following digestion. False Choose the correct statement from the list below. ![]() False True or False? The liver is a component of the alimentary canal. True or false? One advantage of having a tube-like digestive tract is that digestion of all compounds can take place simultaneously down the tract. Which process is not required for an animal to obtain energy from food? Excretion. Carbohydrates mostly composed of glucose which are broken down by salivary amylase and pancreatic amylase which results in small sugars that can be absorbed by the small intestine.Which structure is not part of the alimentary canal? Salivary glands. ![]() Fats break down into diglycerides and are digested in the small intestine. Proteins are digested and the product form will be amino acids. The food nutrients breakdown into various forms. Note: Digestion is the breakdown of large insoluble food molecules into water-soluble food molecules so that they can be absorbed by the blood. > The end product of protein must be broken down into amino acids. > Trypsin cleaves proteins into smaller polypeptides. > Trypsin is secreted by the pancreas in the form of trypsinogen, which is activated in the duodenum by enterokinase to form trypsin. > The digestive enzymes are mostly secreted in their inactive precursors, called zymogens. > These enzymes break down food protein into polypeptides that are broken down by various peptidases into amino acids. > Protein digestion occurs in the stomach and duodenum in which three enzymes, pepsin secreted by the stomach and trypsin and chymotrypsin secreted by the pancreas. The body uses proteins to make hormones, build bones and muscles, and also repair tissue damage. > Proteins are important nutrients required by the body. These amino acids bond together to form a larger protein molecule. > There are 20 amino acids in the proteins we consume. When the proteins are digested only, then only amino acids are left. Amino acids are the organic compounds that combine to form proteins. Proteins and amino acids are the building blocks of life. Hint: Organic compounds that contain amine and carboxyl as their functional groups.
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