Bundle: Biology: The Unity and Diversity of Life, 14th + LMS Integrated for MindTap Biology, 1 term (6 months) Printed Access Card
Bundle: Biology: The Unity and Diversity of Life, 14th + LMS Integrated for MindTap Biology, 1 term (6 months) Printed Access Card
14th Edition
ISBN: 9781305774384
Author: Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher: Cengage Learning
bartleby

Videos

Question
Book Icon
Chapter 39, Problem 1SQ
Summary Introduction

Introduction: Most animals consume large and complex foods. Large food particles are broken down into smaller monomers in such a form that can be circulated to every cell throughout the body. These functions are carried out by a set of specialized structure present in an organism called as digestive system. Most of the organism undergoes extracellular digestion. Four tasks are mainly carried out by the digestive system: ingestion, digestion, absorption, and elimination.

Expert Solution & Answer
Check Mark

Answer to Problem 1SQ

Correct answer: A digestive system functions in order to secrete enzymes, absorb compounds, and eliminate wastes.

Hence, the correct answer is option d.

Explanation of Solution

Reason for correct answer: Digestion of food material starts at the point of the food consumption itself. Varied enzymes are released to break down the food to simpler form. The larger and complex macromolecules are converted to simpler absorbable form. Then, the nutrients are absorbed to respective structures and circulated throughout the body of the organism. At the end of the digestive process, the undigested and unabsorbed materials are expelled out of the organism.

Option d. is given as “all of the above”. This is correct because the digestive system performs all the given functions. It secretes enzymes, absorbs compounds, and also helps in excreting toxic compounds out of the body.

Hence, the correct answer is option d.

Reasons for incorrect answer:

Option a. is given as “secreting enzymes”. Digestive system secretes a series of enzymes called as digestive enzymes that help to break down the complex macromolecules into simpler monomers. But this is incorrect because secreting enzyme is only one of the functions performed by the digestive system. Hence, the correct answer is option a.

Option b. is given as “absorbing compounds”. A digestive system functions as absorbing compounds. Digestion of complex molecules gives small monomers. While passing through the walls of the digestive organ, it gets absorbed to the internal environment of the organism. But this is incorrect because they also perform other functions like secreting enzyme and eliminating waste. Hence, option b.  is incorrect.

Option c. is given as “eliminating wastes”. The waste materials that are not digested and absorbed are eliminated by the body. This is incorrect as the digestive system is also involved in other functions. After only digestion and absorption, the elimination step can be carried out. Hence, option c. is incorrect.

Hence, the options a., b., and c. are incorrect.

Conclusion
A digestive system functions in secreting different enzymes to digest the food, absorption of nutrient compounds into the cells, and eliminating wastes out of the body.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!
Students have asked these similar questions
Did your intake of vitamin C meet or come very close to the recommended amount? yes no
Which of the following statements about hydration is true? Absence of thirst is a reliable indication that an individual is adequately hydrated. All of these statements are true. Although a popular way to monitor hydration status, weighing yourself before and after intensive physical activity is not a reliable method to monitor hydration. Urine that is the color of apple juice indicates dehydration. I don't know yet
Three of the many recessive mutations in Drosophila melanogaster that affect body color, wing shape, or bristle morphology are black (b) body versus grey in wild type, dumpy (dp), obliquely truncated wings versus long wings in the male, and hooked (hk) bristles versus not hooked in the wild type.  From a cross of a dumpy female with a black and hooked male, all of the F1 were wild type for all three of the characters.  The testcross of an F1 female with a dumpy, black, hooked male gave the following results:   Trait Number of individuals Wild type 169 Black 19 Black, hooked 301 Dumpy, hooked 21 Hooked, dumpy, black 172 Dumpy, black 6 Dumpy 305 Hooked 8   Determine the order of the genes and the mapping distance between genes. Determine the coefficient of confidence for the portion of the chromosome involved in the cross. How much interference takes place in the cross?
Knowledge Booster
Background pattern image
Biology
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
SEE MORE QUESTIONS
Recommended textbooks for you
Text book image
BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
Biology
ISBN:9781305967359
Author:STARR
Publisher:CENGAGE L
Text book image
Biology: The Dynamic Science (MindTap Course List)
Biology
ISBN:9781305389892
Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher:Cengage Learning
Text book image
Nutrition Now
Health & Nutrition
ISBN:9781337415408
Author:Brown
Publisher:Cengage
Text book image
Comprehensive Medical Assisting: Administrative a...
Nursing
ISBN:9781305964792
Author:Wilburta Q. Lindh, Carol D. Tamparo, Barbara M. Dahl, Julie Morris, Cindy Correa
Publisher:Cengage Learning
Text book image
Body Structures & Functions
Biology
ISBN:9781285695495
Author:Scott
Publisher:Cengage
Text book image
Body Structures & Functions Updated
Biology
ISBN:9780357191606
Author:Scott
Publisher:Cengage
Human digestive system - How it works! (Animation); Author: Thomas Schwenke;https://www.youtube.com/watch?v=X3TAROotFfM;License: Standard Youtube License