Which of the following describes a role of hydrochloric acid (HCl) in the digestive system? It...
Which of the following describes a role of hydrochloric acid (HCl) in the digestive system?
- It converts trypsinogen into trypsin.
- It neutralizes bacteria ingested with food.
- It neutralizes the pH of stomach contents.
- It protects the walls of the stomach from digestive activity.
Homework Answers
ANSWER.
* One the role of hydrochloric acid(HCL) in the digestive system is neutralizing
bacteria ingested with food.
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Which of the following describes a role of hydrochloric
acid (HCl) in the digestive system?
It...
Which statement about protease secretion and activity during protein digestion is correct? A. Pepsin is a...
Which statement about protease secretion and activity during protein digestion is correct? A. Pepsin is a protease that degrades proteins in the small intestine. B. Secretin is a protease that neutralizes stomach acid during digestion. C. Cholecystokinin (CCK) triggers active protease secretion from the pancreas. D. Trypsinogen is a protease that converts zymogens into active proteases. E. Trypsinogen is the substrate of enteropeptidase in the small intestine.
Isoelectric Point of Pepsin Pepsin is the name given to several digestive enzymes secreted (as larger...
Isoelectric Point of Pepsin Pepsin is the name given to several digestive enzymes secreted (as larger precursor proteins) by glands that line the stomach. These glands also secrete hydrochloric acid, which dissolves the particulate matter in food, allowing pepsin to enzymatically cleave individual protein molecules. The resulting mixture of food, HCl, and digestive enzymes is known as chyme and has a pH near 1.5. What pI would you predict for the pepsin proteins? What functional groups must be present to...
bio 2 Chapter 26: Digestive System: Answers 11. Match the following definitions to the terms they...
bio
2
Chapter 26: Digestive System: Answers 11. Match the following definitions to the terms they describe: (stomach, peristalsis, pancreas, digestion, small intestine, liver) The mechanical and chemical breakdown of food into subunits, enabling the absorption of nutrients. _: Coordinated muscular contractions that force food down the digestive tract An expandable muscular organ that stores the a k daun and digests proteins in food, _: The organ in which the bulk of chemic als and food occurs An organ that...
Baking soda (NaHCO3) (84.01 g/mol) is often used as an antacid. It neutralizes hydrochloric acid (HCl)...
Baking soda (NaHCO3) (84.01 g/mol) is often used as an antacid. It neutralizes hydrochloric acid (HCl) (36.46 g/mol) secreted by the stomach according to the balanced equation below. What is the maximum mass of CO2 (44.01 g/mol) that can be produced from a mixture of 2.00 x 103 g NaHCO3 and 5.00 x 102 g HCl? NaHCO3 (s) + HCl (aq) → NaCl (aq) + H2O (l) + CO2 (g) Group of answer choices
The large intestine is an example of _______ organ of the digestive system.
The next question is for the two circles after the first question.The large intestine is an example of _______ organ of the digestive system. Which of the following statements describes the general function of this type of digestive organ?Physically interacts with the ingested food, for example, storing the food, moving the food along the digestive tract, or absorbing nutrients released from processed foodSecretes enzymes and other liquids that aid in the digestion and processing of food2.)The next question is for...
Which of the following parts of the digestive system is considered an accessory digestive structure? mouth...
Which of the following parts of the digestive system is considered an accessory digestive structure? mouth stomach small intestine liver large intestine Question 2 of 30 Which of the following is a function of the lymph vascular system? Collecting water and solutes from the veins of the blood Absorbing carbohydrates from the small intestine Being a major site for T and B cell activation Transporting foreign materials to lymph nodes Returning water and solutes to the small intestine Question 3...
please answer both Which of the following statements is true? The H+/K+-ATPase (proton pump) generates ATP...
please answer both
Which of the following statements is true? The H+/K+-ATPase (proton pump) generates ATP as hydrogen ions are pumped out of parietal cells. Parietal cells of the stomach produce and release hydrochloric and nitric acid. Parietal cells of the stomach exchange sodium for potassium in order to maintain homeostasis prior to stimulation. When a histamine receptor antagonist is presented to parietal cells, followed by histamine, the internal pH of the parietal cells increases dramatically. Figure 23.4 suggests that...
Which of the following statements is FALSE regarding the digestive system? O A. In the stomach,...
Which of the following statements is FALSE regarding the digestive system? O A. In the stomach, the presence of food produces gastrin, which leads to a lowering of pH, which then activates pepsin for digestion of proteins. OB. As food passes through the liver it is mixed with bile which breaks large clusters of fats into smaller droplets. OC. Nutrient absorption takes place primarily in the small intestine. OD. Lipases in the small intestine break lipids into glycerol and free...
Which substances are secreted by the pancreas? a. Hydrochloric acid and mucus b. Intrinsic factor and...
Which substances are secreted by the pancreas? a. Hydrochloric acid and mucus b. Intrinsic factor and mucus c. Bicarbonate and enzymes d. Mucus and enzymes e. Pepsin and enzymes Mechanical digestion occurs by _____. a. peristalsis b. liver c. breakdown by enzymes d. chewing e. uncoiling by hydrochloric acid Which of the following is a correct statement about fiber in the digestive system? a. Bile emulsifies the fiber making it ready for enzyme action in the small intestine. b. Stomach...
Suppose the fluid in the stomach of a woman suffering from indigestion can be considered to be 100. mL of a 0.047 M HCl solution
Sodium hydrogen carbonate (NaHCO₃), also known as sodium bicarbonate or "baking soda", can be used to relieve acid indigestion. Acid indigestion is the burning sensation you get in your stomach when it contains too much hydrochloric acid (HCl), which the stomach secretes to help digest food. Drinking a glass of water containing dissolved NaHCO₃ neutralizes excess HCl through this reaction:HCl(aq)+NaHCO₃(aq) → NaCl(aq)+H₂ O(l)+CO₂(g)The CO₂ gas produced is what makes you burp after drinking the solution.Suppose the fluid in the stomach...
bio
2
Chapter 26: Digestive System: Answers 11. Match the following definitions to the terms they describe: (stomach, peristalsis, pancreas, digestion, small intestine, liver) The mechanical and chemical breakdown of food into subunits, enabling the absorption of nutrients. _: Coordinated muscular contractions that force food down the digestive tract An expandable muscular organ that stores the a k daun and digests proteins in food, _: The organ in which the bulk of chemic als and food occurs An organ that...
The next question is for the two circles after the first question.The large intestine is an example of _______ organ of the digestive system. Which of the following statements describes the general function of this type of digestive organ?Physically interacts with the ingested food, for example, storing the food, moving the food along the digestive tract, or absorbing nutrients released from processed foodSecretes enzymes and other liquids that aid in the digestion and processing of food2.)The next question is for...
please answer both
Which of the following statements is true? The H+/K+-ATPase (proton pump) generates ATP as hydrogen ions are pumped out of parietal cells. Parietal cells of the stomach produce and release hydrochloric and nitric acid. Parietal cells of the stomach exchange sodium for potassium in order to maintain homeostasis prior to stimulation. When a histamine receptor antagonist is presented to parietal cells, followed by histamine, the internal pH of the parietal cells increases dramatically. Figure 23.4 suggests that...
Which of the following statements is FALSE regarding the digestive system? O A. In the stomach, the presence of food produces gastrin, which leads to a lowering of pH, which then activates pepsin for digestion of proteins. OB. As food passes through the liver it is mixed with bile which breaks large clusters of fats into smaller droplets. OC. Nutrient absorption takes place primarily in the small intestine. OD. Lipases in the small intestine break lipids into glycerol and free...
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