Bio171-F10-Lec 3 - Biology 171 Monday, September 13, 2010...

Info iconThis preview shows pages 1–14. Sign up to view the full content.

View Full Document Right Arrow Icon
Lecture 3: Organism/Environment Interactions Biology 171 Monday, September 13, 2010 Biological classification (concluded) Physiology & Respiration Scaling Effects of Respiration Role of Hemoglobin Respiration in Water vs. Air Comparative Respiration: Fishes, Mammals, Birds Insects Today’s Topics: Announcements This week in Discussion: What is Life? Text Reading Lecture 3 : 4 th ed: Chapters 41 (811-814), 44 (861-877) 3 rd ed: Chapters 41 (921-926), 44 (978-997) Lecture 4: 4 th ed: Chapter 50 (995-1012) 3 rd ed: Chapter 50(1127-1146) 1
Background image of page 1

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

View Full DocumentRight Arrow Icon
In terms of complexity, the primary distinction among living organisms separates Prokaryotes from Eukaryotes 2
Background image of page 2
Fig. 1.6 3
Background image of page 3

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

View Full DocumentRight Arrow Icon
Fig. 1.6 4
Background image of page 4
Fig. 7.1 5
Background image of page 5

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

View Full DocumentRight Arrow Icon
Linnaeus grouped organisms together based on apparent similarity 6
Background image of page 6
Phylogeny* is the study of the connections between all groups of organisms as understood by ancestor/descendant relationships. *Greek for “tribe”and “origins” Phylogeneticists express the relationships among groups of organisms through tree-like diagrams which are inferred genealogies of lineages and species. The data they use to construct these inferred genealogies are obtained from the: Fossil record Morphologies of living organisms Genomes of living organisms 7
Background image of page 7

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

View Full DocumentRight Arrow Icon
Does it matter if we classify biodiversity according to Linnean or Phylogenetic systems? Why should this be important? 8
Background image of page 8
Phylogenetic perspective of the earth’s biodiversity (based on gene sequences). Three major branches (Domains), 2 of them prokaryotic. Fig. 1.5 9
Background image of page 9

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

View Full DocumentRight Arrow Icon
A living entity…. acquires energy and material from its surroundings 10
Background image of page 10
Organismal Ecology Physiology : mechanical, physical and biochemical functions of living organisms. Performing these functions requires energy obtained from food by respiration : cellular respiration and physiological respiration. 11 50.1
Background image of page 11

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

View Full DocumentRight Arrow Icon
Plants Light Energy Chemical Energy Respiration unlocks the energy stored in the chemical bonds of organic molecules and puts it to work physiologically 12
Background image of page 12
Glucose: an energy-rich organic molecule produced by plants Energy-rich molecules such as glucose cannot be directly used for life processes The energy must be converted into a readily usable chemical form (ATP) by the process of Cellular Respiration . Occurs in a highly regulated form in mitochondria. Requires O 2 Adenosine Triphosphate ATP) powers almost all cellular functions 13
Background image of page 13

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

View Full DocumentRight Arrow Icon
Image of page 14
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 02/13/2012 for the course BIO 171 taught by Professor Josephinekurdziel during the Fall '08 term at University of Michigan.

Page1 / 51

Bio171-F10-Lec 3 - Biology 171 Monday, September 13, 2010...

This preview shows document pages 1 - 14. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online