{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Lecture_30_DulaiS09_CommonChallenges

Lecture_30_DulaiS09_CommonChallenges - Common Challenges...

Info icon This preview shows pages 1–8. Sign up to view the full content.

View Full Document Right Arrow Icon
Common Challenges Bio 001 Spring 2009 Dulai - Lecture 30
Image of page 1

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Plants & Animals – Common Challenges 2. What is homeostasis? What are some major challenges to maintaining homeostasis in a multicellular organism? 3. What are the basic levels of anatomical structure involved in the study of physiology of animals ? 1. What are anatomy and physiology? How are they related? 4. Why and in what ways does evolution matter to physiology and anatomy? How do physiology and anatomy contribute to our understanding of evolution? 5. What basic strategy do animals use to maintain homeostasis?
Image of page 2
What are anatomy and physiology? Inter-related disciplines focused on structures and systems that allow organisms to survive and reproduce under a particular range of variable environmental conditions. • Anatomy study of an organism’s structure · skeleton · arrangement and types of physical connections among an organism’s parts • Physiology study of function related to survival and reproduction in particular environmental conditions Da Vinci’s Anatomical Drawings · How maintain function under given conditions? · How maintain function as environmental conditions change?
Image of page 3

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
How are anatomy and physiology united? · Ex. Problem in multicellular organisms: How move materials (resources and wastes) between cells and the external environment? Contributions to maintenance of homeostasis · Ex. Jellyfish: system of canals infused with seawater · Failure of structural component of either circulatory system, lead to loss of homeostasis . · Ex. Humans: blood vessels of circulatory system conduits for life sustaining blood · Solution: In (most) animals, c irculatory system but can take different forms Aurelia sp .
Image of page 4
How does the study of anatomy & physiology differ in unicellular & multicellular organisms? · Individual cells are dependent upon survival of whole to maintain homeostasis at cellular level · Ex. contractile vacuole of Paramecium sp. Unicellular – about structure of single cell & how it works to maintain homeostasis Multicellular – much more complex; cells must work together so that entire organism can survive changing environmental conditions · Homeostasis at level of entire organism depends upon homeostasis of cells · Requires very complex systems of controls & communication!
Image of page 5

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Basic Biological Principle The bigger an organism the more complexity it can attain The more complex an organism the bigger it can get
Image of page 6
What are some of the major challenges of maintaining homeostasis in a multicellular organism ? 1 . How to exchange important materials with the environment . · Ex. Gases – acquire O 2 and eliminate CO 2 · Test Yourself : Why are these materials important to metabolism? What processes uses O 2 ? Why? During what process are they consumed or created? Where does this happen in these processes?
Image of page 7

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 8
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern