Class notes

Animal Body Science Metabolism and Temperature Lectures

1 view 0 purchase

Course
Biology 224 (ABS224)

Institution
University Of Saskatchewan (USask )

This document includes the metabolism and temperature lectures that I took in class. I hope you find this helpful!

[Show more]

Preview 2 out of 6 pages

View example

Uploaded on April 12, 2023
Number of pages 6
Written in 2022/2023
Type Class notes
Professor(s) Dr. niyogi
Contains All classes

CA$15.55

Add to cart

Add to wishlist

100% satisfaction guarantee
Immediately available after payment
Both online and in PDF
No strings attached

Metabolism and Body Temperature Regulation
Supplementary Readings:
• Textbook (5th Edition, Chapter 39, pages 1043-1053
Body Energy – Supply & Demand
• For a normal human, daily energy is spent on
o 70% in basic organ function
o 20% on physical activity
o 10% percent is necessary for thermoregulation.
• As organic substrates are absorbed from the digestive system into the blood, they are delivered to
tissues for:
o Immediate conversion to ATP (&heat)
o Synthesis into structural molecules
o Or storage for later conversion to ATP
Heterotrophs derived energy from other organisms (food)

• Metabolism: body processes that used or produce energy; occurs at multiple scales
• Metabolic Rate: the rate at which body energy is used to metabolism.
Metabolism & Metabolic Rate
• Body metabolism is adjusted to meet specific needs
• Seen as changes in metabolic rate
o More body activity = higher overall energy use (metabolic rate)
• Regulated by the CNS and various hormones in mammals
o Motor NS increases skeletal muscle activity
o Autonomic NS switches metabolism
o Epinephrine increases metabolism
o 𝐓𝟑 directly stimulates cellular ATP & heat production indirectly through various other chemical
signals (e.g. cortisol, leptin, etc.)
A change in metabolic rate results from changes in ATP used by individual cells
• However, at the whole-body level, this is seen as:
o Altered 𝐎𝟐 consumption
o Altered 𝐂𝐎𝟐 production
o altered production of 𝐇 # & other by-products
o altered heat production
• some animals have evolved a high rate of metabolism just to maintain an elevated body temperature.

, •

The benefits of buying summaries with Stuvia:

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

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

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 ellabogan. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for CA$15.55. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

56326 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