Campbell Biology in Focus (2nd Edition)
2nd Edition
ISBN: 9780321962751
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 33.3, Problem 3CC
Summary Introduction
To determine:
What would happen if gastric juice is mixed with crushed food in a test tube.
Introduction:
Gastric juice is secreted by the stomach and it helps in the digestion of the food. Gastric juice contains hydrochloric acid (HCl), mucus, rennin, and pepsin (a protease). It is strongly acidic due to the presence of HCl and has a very low
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
. WHAT IF? Thinking in broad terms, what similaritiescan you identify between digestion in an animal bodyand the breakdown of gasoline in an automobile?(You don’t have to know about auto mechanics.)
2. Which is the most important digestive enzyme in gastric juice?
4. Evaluate What portion of the daily requirements for total fat and total carbohydrates does the fast-food meal meet? Does this result reflect a healthy diet? Explain. Hint: Consider other daily requirements and what happens during the rest of the day.
Chapter 33 Solutions
Campbell Biology in Focus (2nd Edition)
Ch. 33.1 - An animal requires 20 amino acids to make...Ch. 33.1 - Prob. 2CCCh. 33.1 - WHAT IF? if a zoo animal eating ample food shows...Ch. 33.2 - Prob. 1CCCh. 33.2 - In what sense are nutrients from a recently...Ch. 33.2 - Prob. 3CCCh. 33.3 - How does swallowed food reach the stomach of a...Ch. 33.3 - Explain why a proton pump inhibitor, such as the...Ch. 33.3 - Prob. 3CCCh. 33.4 - Prob. 1CC
Ch. 33.4 - Prob. 2CCCh. 33.4 - Prob. 3CCCh. 33.5 - Prob. 1CCCh. 33.5 - The energy required to maintain each gram of body...Ch. 33.5 - Prob. 3CCCh. 33 - The mammalian trachea and esophagus both connect...Ch. 33 - Which organ is incorrectly paired with its...Ch. 33 - Which of the following is not a major activity of...Ch. 33 - Prob. 4TYUCh. 33 - Prob. 5TYUCh. 33 - If you were to jog 1 km a few hours after lunch,...Ch. 33 - Prob. 7TYUCh. 33 - Prob. 8TYUCh. 33 - FOCUS ON EVOLUTION The human esophagus and trachea...Ch. 33 - Prob. 10TYUCh. 33 - Prob. 11TYU
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Q.3/ calculate the calories present in the following meal?66 g of oats , 30 g of beans , 4 g of orange juice ?arrow_forward3Why does saliva hydrolyze starch in the mouth but not in the stomach?arrow_forward9.How does gastrointestinal tract evade dehydration? Read and analyze the question and choices CAREFULLY; more importantly, ALWAYS CHOOSE the BEST answer. Water is an important digestive enzyme in the stomach. Alternating wave-like contraction and relaxatio of the oral (mouth) muscles reabsorbs water which will be transported to the urinary system The water we drink will be mostly absord by the blood vessels attached to the esophagus and stomach. Normal peristaltic movements in the large intestine ensure reabsorption of water that will be delivered to the circulatory system.arrow_forward
- Experiment: Action of Gastric Proteases (contains pepsin and renin on proteins) Procedure: 1. Prepare 3 test tubes and place 2 mL boiled egg albumin solution on each tube. Tube 1: Add 1 mL Pepsin SolutionTube 2: Add 1 mL of Pepsin + 2 drops conc. HClTube 3: add nothing 2. Keep all the test tubes in a beaker with hot water maintained at 40°C, for one hour or longer. 3. Filter the content of each test tube and perform Biuret’s Test by adding 2 mL 10% NaOH and 2 mL dilute CuSO4 solution to each test tube. Question: What are the possible observations on each test tube? and What is its inference?arrow_forward1. State several reasons why carbohydrates are usually needed in more amounts than fats in the diet 2. Explain why protein should be included in the diet. 3. What will happen to the human body if we are deficient in particular vitamins and trace elements? Give examples of effects of vitamin and mineral deficiencies. 4. There are 20 amino acids needed to make proteins in the animal body. Why aren't they all considered essential to animal diets? 5. Compare the incomplete and complete digestive systems. 6. What are the functions of accessory organs in a complete digestive system? 7. Explain how digestion is regulated in animals. What are the organ systems involved in regulation of digestion? Explain. 8. What are the health problems associated with nutrition and digestive system? Give atleast 3 examples with explanationarrow_forwardwill UPVOTE Topic: Protein Digestion and Metabolism Answer the questions. 1. Why doesn't the enzyme bromelain digest the proteins in your stomach when you eat fresh pineapple? 2. After the experiment, why were the results of freshly cooked pineapple different than the results of the fresh/raw pineapple?arrow_forward
- 1. Why is water considered an essential nutrient? What are the functions of protein in the body? 2. What are the functions of fats in the body? What are more and less healthful sources of fats? 3. What are two technologies being used in our food?arrow_forwardWHAT IF? If a zoo animal eating ample food showssigns of malnutrition, how might a researcher determinewhich nutrient is lacking in its diet?arrow_forward5. TRUE OR FALSE: asap Digestive secretions from the small intestine complete the digestion of carbohydrates, proteins, and lipids. Bacteria in the large intestines produce minerals and nucleic acids.arrow_forward
- 2. As chyme is released from the stomach into the small intestine, _______ production slows and the small intestine secretes _____________ and ____________. A. CCK; gastrin; secretin B. gastrin; CCK; secretin C. none of these answers is correct D. secretin; gastrin; CCK 3 .Which of the following food items have high levels of saturated fat? (Check all that apply) lard canola oil butter margerine olive oilarrow_forwardBy watching this animation (http://openstaxcollege.org/l/foodgroups) , you will see that for the various food groups—proteins, fats, and carbohydrates—digestion begins in different parts of the digestion system, though all end in the same place. Of the three major food classes (carbohydrates, fats, and proteins), which is digested in the mouth, the stomach, and the small intestine?arrow_forward1.describe the effect of adding fluoride to drinking water. 2.where is saliva secreted into from the salivary gland 3.Where is gastric juice made containing pepsin and hydrochloric acid 4.where does amylase break down starch to maltose 5.where does mastication increase the surface area of the food 6.where does bile salts emulsify fats 7.where does pepsin break down protein to polypeptides 8.where is sodium hydrogen carbonate neutralises acid from the stomach 8.Where does lipase break down fats to fatty acids and glycerolarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Understanding Nutrition (MindTap Course List)Health & NutritionISBN:9781337392693Author:Eleanor Noss Whitney, Sharon Rady RolfesPublisher:Cengage Learning
Anatomy & PhysiologyBiologyISBN:9781938168130Author:Kelly A. Young, James A. Wise, Peter DeSaix, Dean H. Kruse, Brandon Poe, Eddie Johnson, Jody E. Johnson, Oksana Korol, J. Gordon Betts, Mark WomblePublisher:OpenStax College
Understanding Nutrition (MindTap Course List)
Health & Nutrition
ISBN:9781337392693
Author:Eleanor Noss Whitney, Sharon Rady Rolfes
Publisher:Cengage Learning
Anatomy & Physiology
Biology
ISBN:9781938168130
Author:Kelly A. Young, James A. Wise, Peter DeSaix, Dean H. Kruse, Brandon Poe, Eddie Johnson, Jody E. Johnson, Oksana Korol, J. Gordon Betts, Mark Womble
Publisher:OpenStax College