Life: The Science of Biology
11th Edition
ISBN: 9781319010164
Author: David E. Sadava, David M. Hillis, H. Craig Heller, Sally D. Hacker
Publisher: W. H. Freeman
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 50.1, Problem 4R
Summary Introduction
To review:
The reason why food mixtures delivered into stomach by a food tube include proteins, but those delivered into the blood vessels do not.
Introduction:
The total parenteral nutrition (PN) is a method of feeding where a person is fed intravenously, bypassing normal eating and digestion process. A comatose patient is fed with nutrient mixtures via a food tube, which delivers nutrients into the stomach. However, for a patient with a non-functional gastrointestinal system, the nutrient mixture is delivered directly into the blood vessels.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
Unlike carbohydrates and fatty acids, protein shuld be supplied in regular basis. Why there is a need to supply protein more than the two macromolecules?
Some diets suggestseverely restricting the intake of lipids. Why is it nota good idea to eliminate all lipids from the diet?
Amino acids are not stored in the body. Describe howexcess amino acids are processed in the cell.
Chapter 50 Solutions
Life: The Science of Biology
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
- Examine the label information on the packages of a varietyof breakfast cereals. Which types of cereals provide thebest sources of carbohydrates, lipids, proteins, vitamins, andminerals? Which major nutrients are lacking in these cereals?arrow_forwardAspirin is an acid with a pKa of 3.5; its structureincludes a carboxyl group. To be absorbed into the bloodstream,it must pass through the membrane lining the stomach and thesmall intestine. Electrically neutral molecules can pass through amembrane more easily than can charged molecules. Would youexpect more aspirin to be absorbed in the stomach, where the pHof gastric juice is about 1, or in the small intestine, where the pH isabout 6? Explain your answer.arrow_forwardIn nutrition, are high calorie dense foods the same as concentrated sources of calories? Explain.arrow_forward
- Fructose and glucose are both monosaccharides, but the body metabolizesthese sugars differently. For example, glucose stimulates insulin releasefrom the pancreas (see section 28.4); fructose does not. Moreover, insulinstimulates leptin release. Finally, fructose is more likely than glucose tobe converted to fat. Use this information to propose an explanation for thecorrelation between the skyrocketing consumption of high fructose cornsyrup since 1970 and the rise in obesity during the same period.arrow_forwardThe following question is regarding digestion and energy balance, in this scenario you have just finished eating a sandwich - Make a drawing that shows where digestion takes place for each component of the sandwhich like the bread, vegtables, and protein. Be sure to include the following: the location of each, the phase, the absorbable unit, hormones involved, the organs, and the exocrine/endocrine cells.arrow_forwardTriglycerides are transported by chylomicrons because________.a. they cannot move easily in the blood streambecause they are fat based, while the blood iswater basedb. they are too small to move by themselvesc. the chylomicrons contain enzymes they need foranabolismd. they cannot fit across the intestinal membranearrow_forward
- Why do some proteins have more nutritional valuethan others?arrow_forwardWhy are people who consume many of their carbohydrates in the form of high-fructose corn syrup (HFCS) more apt to overeat than people who consume carbohydrates in the form of starches? Explain how some starchy foods are healthier than others. What are three healthier starchy foods and why?arrow_forwardIdentify the macromolecules which are the carbohydrates, lipids, protein, nucleic acid of this foods. Note: its not how much carbs are there.arrow_forward
arrow_back_ios
arrow_forward_ios
Recommended textbooks for you
- Human Biology (MindTap Course List)BiologyISBN:9781305112100Author:Cecie Starr, Beverly McMillanPublisher:Cengage LearningBiology (MindTap Course List)BiologyISBN:9781337392938Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. BergPublisher:Cengage Learning
- Health Safety And Nutrition F/Young ChildHealth & NutritionISBN:9781305144767Author:MAROTZPublisher:Cengage
Human Biology (MindTap Course List)
Biology
ISBN:9781305112100
Author:Cecie Starr, Beverly McMillan
Publisher:Cengage Learning
Biology (MindTap Course List)
Biology
ISBN:9781337392938
Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher:Cengage Learning
Health Safety And Nutrition F/Young Child
Health & Nutrition
ISBN:9781305144767
Author:MAROTZ
Publisher:Cengage