100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
Bio 254 Digestive System Questions And Answers Rated A+ $12.49   Add to cart

Exam (elaborations)

Bio 254 Digestive System Questions And Answers Rated A+

 5 views  0 purchase
  • Course
  • Bio 254
  • Institution
  • Bio 254

Bio 254 Digestive System Questions And Answers Rated A+ Why do vertebrates require a digestive system ANS They are particulate feeders, meaning that the large chunks of ingested material must be processed to release energy and nutrients What is the function of the digestive system ANS To rece...

[Show more]

Preview 2 out of 9  pages

  • September 5, 2024
  • 9
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • Bio 254
  • Bio 254
avatar-seller
Nipsey
Bio 254 Digestive System Questions And Answers
Rated A+
Why do vertebrates require a digestive system ANS They are particulate feeders, meaning that the large chunks
of ingested material must be processed to release energy and nutrients



What is the function of the digestive system ANS To receive and temporarily store, to break down food and
further reduce it chemically, to absorb digested products, to eliminate undigested waste



How does food move through the gut ANS Through peristaltic smooth muscle contractions



Structure of the esophagus ANS Highly distensible organ lined with epithelium consisting of stratified squamous
cells that may be cornified



Function of the esophagus ANS Receives food from the oral cavity and pharynx



What does the esophagus secrete ANS Mucus



Function of stomach ANS Stores food and participates in the chemical and physical digestion process



Why must the food be temporarily stored in the stomach? ANS Most vertebrates are intermediate feeders and
take in food faster than it can be digested



Describe the structure of the stomach ANS Lined with glandular epithelium and can be divided into the cardiac,
pyloric, and fundic regions depending on the fine structures and secretions



What are the secretions of the stomach ANS Epithelium secretes HCl and a pepsin precursor, which is activated
in the HCl and starts the digestion of proteins



Compare the stomachs of vertebrates that feed on fluids to those that feed on solids ANS Fluid - reduced
stomachs



Describe the stomach structure of herbivores ANS Greatly enlarged and frequently multichambered esophagus
and stomach

, What are the 2 sphincters of the stomach and what do they do? ANS Cardiac (top) controls movement of food
into the stomach

Pyloric (bottom) controls movement of chyme into the small intestine



What are the portions of the small intestine ANS Duodenum

ileum

jejunum



What is the function of the duodenum ANS Receives bile and pancreatic enzymes



What is the function of the ileum ANS Continues the chemical digestion of the food and absorbs nutrients



Define caecum ANS Fermented chambers for cellulose digesting microorganisms found at the junction of the
large and small intestine



Where is the colon most frequently found ANS In tetrapods



What is the function of the colon ANS Reabsorption of water from the remaining digested food



Why do aquatic vertebrates not have a colon? ANS Less need for reabsorbing water



What is the function of the rectum ANS Stores the feces until eliminated



What are the digestive glands ANS The liver and pancreas



What is the largest gland in the body ANS the liver



What is the function of the liver ANS processing of absorbed nutrients

detoxification of harmful substances

production of bile

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

Guaranteed quality through customer reviews

Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.

Quick and easy check-out

Quick and easy check-out

You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.

Focus on what matters

Focus on what matters

Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!

Frequently asked questions

What do I get when I buy this document?

You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.

Satisfaction guarantee: how does it work?

Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.

Who am I buying these notes from?

Stuvia is a marketplace, so you are not buying this document from us, but from seller Nipsey. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for $12.49. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

67866 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy study notes for 14 years now

Start selling
$12.49
  • (0)
  Add to cart