Resumão do Vitão - Fisiologia Humana: Sistema Digestório: Enzimas Digestivas + 6 questões comentadas

Hey guys! Summary of a classic ENEM and Vestibular (Brazilian university entrance exam) topic! So classic that I made 6 questions (ENEM, UERJ, and FUVEST) to prove that the summary will solve your problems!!! 00:00 Introduction 01:15 Content 19:22 Surprise 21:03 Question 1 - ENEM 23:31 Question 2 - ENEM 24:40 Question 3 - UERJ 26:52 Question 4 - UERJ 28:30 Question 5 - FUVEST 29:40 Question 6 - FUVEST 1. (Enem digital 2020) A researcher placed the same amount of aqueous solution of the digestive enzyme pepsin in five test tubes. Then, he added equal masses of the foods described in the table. The foods were left in contact with the digestive solution for the same amount of time. 1. The largest quantity of metabolized products at the end of the test was obtained in tube a) I. b) II. c) III. d) IV. e) V. 2. (Enem PPL 2018) Cabbage juice can be used as an acid-base indicator in different solutions. To do this, simply mix a little of this juice with the desired solution and compare the final color with the pH indicator scale, with values ​​from 1 to 14, shown below. Using the acid-base indicator and the scale to determine the pH of human saliva and gastric juice, the colors obtained are, respectively: a) red and red. b) red and blue. c) pink and purple. d) purple and yellow. e) purple and red. Gastric juice contains an acid, produced by the cells of the stomach wall, which plays a fundamental role in the efficiency of the digestive process in humans. 3. (Uerj 2016) Excessive consumption of antacids can interfere with the action of gastric juice, impairing the normal functioning of the stomach. The two main functions of the stomach impaired by this excessive use are: a) emulsification of fats – absorption of amino acids b) breakdown of carbohydrate molecules – mucus production c) transformation of pepsinogen into pepsin – elimination of microorganisms d) digestion of carboxylic compounds – maintenance of pH suitable for absorption 4. (Uerj 2012) The activity of enzymes in the human body varies depending on the pH of the medium. Observe the graph: The curve that represents the variation in the activity of chymotrypsin, a proteolytic enzyme found in duodenal juice, is identified by the following letter: a) W b) X c) Y d) Z 5. (Fuvest 2010) The human liver is a gland that participates in the processes of digestion and absorption of nutrients, by: a) producing various hydrolytic enzymes that act in the digestion of carbohydrates. b) producing a secretion rich in enzymes that digest fats. c) producing insulin and glucagon, regulators of blood glucose levels. d) producing a secretion rich in salts that facilitates the digestion and absorption of fats. e) absorbing nitrogenous waste from the blood and transforming it into protein nutrients. 6. (Fuvest 2009) Digestive enzymes produced in the stomach and pancreas were isolated from their respective juices and used in the preparation of an experiment, as shown in the table below: After a certain time, the contents of the tubes were tested for the presence of disaccharides, peptides, fatty acids, and glycerol. These four types of nutrients should be: a) present in tube 1. b) present in tube 2. c) present in tube 3. d) present in tube 4. e) absent from all four tubes. #digestivesystem #digestiveenzymes #humanphysiology #quibio #resumaodovitao #enem2021 #uerj2022 #fuvest2022