front 1 Increases the rate of a chemical reaction without becoming part of the product | back 1 catalist |
front 2 Provides a standard of comparison for test results | back 2 Control |
front 3 Biologic catalyst: protein in nature | back 3 enzyme |
front 4 Substance on which a catalyst works | back 4 substrait |
front 5 The enzymes of the digestive system are classified as hydrolyses. What does that mean? | back 5 Digestive enzymes are hydrolytic enzymes or hydrolases. break down by adding water to the molecular bonds, thus breaking bonds between the building blocks, or monomers. |
front 6 What enzyme is this: 1. organ producing it is salivary gland 2. produced in the mouth 3. substrate is starch 4. Optimal ph is neutral | back 6 Salivary amylase |
front 7 What enzyme is this 1. Organ producing it is pancrease 2. Site of action is small intestine 3. Substrate is polypeptide 4. Optimal ph 7.4 - 7.8 | back 7 Trypsin |
front 8 What enzyme is this: 1. Organ producing it is the pancrease 2. Site of action is the small intestine 3. Substrate is lipid, fats 4. Optimal ph is 7.4-7.8 | back 8 Lipase (pancreatic) |
front 9 Name the end products of digestion for the following types of foods: fats | back 9 fatty acids & monoglycerides |
front 10 Name the end products of digestion for the following types of foods: Proteins | back 10 amino acids |
front 11 Name the end products of digestion for the following types of foods: carbohydrates | back 11 glucose |
front 12 In the exercise concerning trypsin function how could you tell protein hydrolysis occurred? | back 12 From clear fluid to yellow fluid a possitive reaction |
front 13 Why was tube 1T necessary | back 13 serves for a control tube |
front 14 Why was tube 2T necessary | back 14 serves as a substrate control |
front 15 Why was 37c the optimal incubation temperature? | back 15 physiological temp of our body is 37c this is the temp a trypsin enzyme would function in |
front 16 Why did very little, if any, digestion occur in test tube 3T? | back 16 Because it was boiled and raised the temperature. |
front 17 Why did very little digestion occur in test tube 5T? | back 17 enzyme will not work at 0 degrees. |
front 18 Trypsin is a protein-digesting enzyme similar to pepsin, the proein-digesting enzyme in the stomach. Would trypsin work will in the stomach? Why not? | back 18 Stomach is very acidic and pepsin is stable at a 2 ph where as trypsin is stable at 7.4-7.6 ph |
front 19 How did the apperance of the addition of bile salt effect vial 2. | back 19 Vial 1 only had oil and water Vial 2 had oil, water and pinch of bile salts (BPNA) the bile added to vial 2 breakes oil drops apart |
front 20 Pancreatic and intestinal enzymes operate optimally at a ph that is slightly alkaline, yet the chyme entering the duodemnum form the stomach is very acidic. How is the proper ph for the functioning of the pancreatic intestinal enzymes ensured? | back 20 pancreas delivers its enzymes to the small intestine in an alkaline rich fluid. It then secretes large amounts of sodium bicarbonate which neutralizes stomach acid. |
front 21 Blocks off nasal passages during swallowing | back 21 uvula |
front 22 voluntary phase of swallowing | back 22 buccal |
front 23 propulsive waves of smooth muscle contraction | back 23 pharyngeal esophageal |
front 24 spinchter that opens when food or fluids exert pressure on it | back 24 gastroesophangeal (cardiac) |
front 25 movement that mainly serves to mix foodstuffs | back 25 segmental |
front 26 forces food into the pharynx | back 26 tongue |
front 27 involuntary phase of swallowing | back 27 peristalsis |
front 28 Structure that suspends the small intestine from the posterior body wall | back 28 anus |
front 29 Three modifications of the small intestine that increase the surface area for absorption | back 29 circular folds, villi, microvilli |
front 30 Large collections of lymphoid tissue found in the submucosa of the small intestine | back 30 peyers patches |
front 31 deep folds of the mucosa and submucosa that extend completely or partially around the circumference of the small intestine | back 31 circular folds |
front 32 regions that break down foodstuffs mechanically | back 32 oral cavity, stomach |
front 33 mobile organ that initiates swallowing | back 33 tongue |
front 34 conduit that serves the respiratory and digestive systems | back 34 pharynx |
front 35 lies posterior to the trachea; conveys food from the pharynx to the stomach | back 35 esophagus |
front 36 surface projections of a mucosal epithelial cell | back 36 microvilli |
front 37 valve at the junction of the small and large intestines | back 37 ileocecal valve |
front 38 primary region of enzymatic digestion | back 38 small intestine |
front 39 membrane securing the tongue to the floor of the mouth | back 39 frenulum |
front 40 area between the teeth and lip/cheeks | back 40 oral vestibule |
front 41 wormlike sac that out pockets from the cecum | back 41 appendix |
front 42 carbohydrate (starch) digestion begins here | back 42 oral cavity |
front 43 two layered serous membrane attached to the greater curvature of the stomach | back 43 greater omentum |
front 44 organ distal to the small intestine | back 44 large intestine |
front 45 valve preventing movement of chyme from the duodenum into the stomach | back 45 pyloric sphincter |
front 46 posteriorsuperior boundary of the oral cavity | back 46 soft palate |
front 47 location of the hepatopancreatic sphincter through which pancreatic secretions and bile pass | back 47 small intestine |
front 48 outermost layer of a digestive organ in the abdominal cavity | back 48 visceral peritoneum |
front 49 principal site for the synthesis of vitamins B, K by bacteria | back 49 large intestine |
front 50 distal end of the alimentary canal | back 50 anus |
front 51 bone-supported part of roof of the mouth | back 51 hard palate |
front 52 produces mucus; found in the submucosa of the small intestine | back 52 duodenal glands |
front 53 groduces a product containing amylase that begins starch breakdown in the mouth | back 53 salvary |
front 54 produces a whole spectrum of enzymes and an alkaline fluid that is secreted into the duodenum | back 54 pancreas |
front 55 produces bile that it secretes into the duodenum via the bile duct | back 55 liver |
front 56 produces HCI and pepsinogen | back 56 gastric |
front 57 What is the role of the gallbaldder | back 57 stores bile |
front 58 visible portion of tooth | back 58 crown |
front 59 material covering the tooth root | back 59 cement |
front 60 hardest substance in the body | back 60 enamel |
front 61 attaches the tooth to bone and surrounding alveolar structures | back 61 periodontal ligament |
front 62 portion of the tooth embeded in bone | back 62 root |
front 63 forms the major protion of tooth structure; similar to bone | back 63 dentin |
front 64 area of the tooth below the dentin | back 64 pulp |
front 65 site of blood vessels, nerves, and lymphatics | back 65 pulp |
front 66 portion of the tooth covered with enamel | back 66 crown |