/*! This file is auto-generated */ .wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none} Q17P In experiments to test the appet... [FREE SOLUTION] | 91影视

91影视

Log out

Learning Materials

Features

Discover

Chapter 22: Q17P (page 800)

In experiments to test the appetite-suppressing effects of PYY3-36why must the hormone be administered intravenously rather than orally?

Short Answer

Expert verified

Because of its short breakdown period, the hormone PYY3-36should be given intravenously rather than orally.

Step by step solution

01

PYY3-36

PYY3-36is a peptide (NPY) hormone, which reduces hunger. The gastrointestinal tract secretes this peptide hormone. It works by reducing the secretion of the neuropeptide Y.

02

Effect of  PYY3-36

PYY3-36is a short-term appetite regulator.PYY3-36 has a quick degradation period since it is a short-term regulator hormone. Anything taken orally takes longer to have an effect, whereas anything taken intravenously has a faster effect. Because orally injected substances must first pass through the digestive tract before they can be absorbed into blood vessels, this is the case. If PYY3-36is injected orally, it will not have enough time to affect the organism because it is digested quickly by the body.

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Over 30 million students worldwide already upgrade their learning with 91影视!

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

Fatty acids appear to stimulate insulin secretion to a much greater extent when glucose is also present. Why is this significant?

The heart cannot convert lactate back to glucose, as the liver does, but instead uses it as a fuel. What is the ATP yield from the complete catabolism of one mole of lactate?

Individuals with a deficiency of medium chain acyl-CoA dehydrogenase (MCAD) tend to develop nonketotic hypoglycemia. Explain why this defect makes them unable to undertake (a) ketogenesis and (b) gluconeogenesis.

Anecdotal evidence suggests that sleep and obesity are related: less sleep tends to promote weight gain, and vice versa. What are the hormonal links between the basic drives for food and rest? Is there evidence that increasing the time spent sleeping can lead to weight loss?

Explain why the high KM of glucokinase is important for the role of the liver in buffering blood glucose.
See all solutions

Recommended explanations on Biology Textbooks

Microbiology

Read Explanation

Biological Processes

Read Explanation

Reproduction

Read Explanation

Cellular Energetics

Read Explanation

Biological Molecules

Read Explanation

Genetic Information

Read Explanation
View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.