BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
10th Edition
ISBN: 9781305967359
Author: STARR
Publisher: CENGAGE L
bartleby

Videos

Textbook Question
Book Icon
Chapter 36, Problem 1SA

Flatworms digest food ___________

a. inside their cells c. in a gastrovascular cavity
b. in a gizzard d. in a complete digestive tract
Expert Solution & Answer
Check Mark
Summary Introduction

Introduction:

Digestion and absorption are the primary phenomena that take place in the body after the ingestion of food. Majority of the digestion is accompanied with the help of enzymes and acidic environment which is provided in the stomach and intestine.

Answer to Problem 1SA

Correct answer:

Flatworms digest food inside their cells. Hence, the correct answer is option a.

Explanation of Solution

Reason for correct answer:

Option a. is given as “inside their cells.”

Flatworms are parasites, living in the human digestive system. They absorb the digested food from the gut. Flatworms do not need to break the food as it is digested by the digestive system of the host. So, they only need to absorb the nutrients from the gut of the host.

Reason for incorrect answer:

Option b. is given as, “in gizzard.”

The gizzard is present in the avian digestive system. It is used to grind the food in the digestive system of birds. Hence, option b. is incorrect.

Option c. is given as, “In gastrovascular cavity.”

The gastrovascular cavity is present in higher species. Flatworms belong to the family of Platyhelminthes, which do not have well developed digestive system. Hence, option c. is incorrect.

Option d. is given as, “in a complete digestive tract.”

The digestive tract is present in higher species. Flatworms belong to the family of Platyhelminthes, which do not have well developed digestive system. Hence, option d. is incorrect.

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

Conclusion

Flatworms are able to digest the food inside their cells in the absence of a well developed digestive system. Thus, the correct option is a.

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!
03:23
Students have asked these similar questions
Which of these processes occurs in the mouth? a. ingestion b. mechanical digestion c. chemical digestion d. all of the above
This organ may be part of the immune system and helps prevent infections in the large intestine.a. duodenum c. cecumb. rectum d. appendix
Tapeworms sometimes infect humans, anchoring themselves to the wall of the small intestine. Based on how digestion is compartmentalized along the mammalian alimentary canal, what digestive functions would you expect these parasites to have?
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
Aquaculture Science
Biology
ISBN:9781133558347
Author:Parker
Publisher:Cengage
Human digestive system - How it works! (Animation); Author: Thomas Schwenke;https://www.youtube.com/watch?v=X3TAROotFfM;License: Standard Youtube License