Copyright Notice! This PowerPoint slide set is copyrighted by Ross Koning and is thereby preserved for all to use from plantphys.info for as long as that website is available. Images lacking photo credits are mine and, as long as you are engaged in non-profit educational missions, you have my permission to use my images and slides in your teaching. However, please notice that some of the images in these slides have an associated URL photo credit to provide you with the location of their original source within internet cyberspace. Those images may have separate copyright protection. If you are seeking permission for use of
26
Embed
Copyright Notice! This PowerPoint slide set is copyrighted by Ross Koning and is thereby preserved for all to use from plantphys.info for as long as that.
This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
Transcript
Copyright Notice!This PowerPoint slide set is copyrighted by Ross Koning and is thereby preserved for all to use from plantphys.info for as long as that website is available. Images lacking photo credits are mine and, as long as you are engaged in non-profit educational missions, you have my permission to use my images and slides in your teaching. However, please notice that some of the images in these slides have an associated URL photo credit to provide you with the location of their original source within internet cyberspace. Those images may have separate copyright protection. If you are seeking permission for use of those images, you need to consult the original sources for such permission; they are NOT mine to give you permission.
Tropical Biology (Costa Rica)Biology 320
May 20-31, 2008
Register for Bio 360 and 320 for Spring
$1900 approximate costScholarships Available!
For more information:Dr. Elliott or Dr. Szczys
G113 or Planetarium EML
Quiz 6Maximum score before adjustment was 93.9 (n=2)So two question adjustment was applied to your quizzes.
The resulting average was 74.2 which was 3 points better than the Quiz 5 average.
The course average includes all papers graded and returned to you. The average of averages is 81.0. This includes a couple of people who I think may have dropped.
1. Open up your Time Log to Today’s Green Page.2. Hold it up until I signal you to put it down.
I’m looking to see who has not got the first column filled out!
Biology:lifestudy of
What is Life?Cellular Structure: the unit of life, one or many
Growth: cell enlargement, cell number
Evolution: long term adaptation
Behavior: short term response to stimuli
Reproduction: avoid extinction at death
Metabolism: photosynthesis, respiration, fermentation, digestion, gas exchange, secretion, excretion, circulation--processing materials and energy
Movement: intracellular, movement, locomotion
Properties of Life
Homeostasis - metabolism
All of these nutritional modes are found among prokaryotes!Eukaryotes are not as diverse in their nutritional modes.
Nutrition ModeEnergy Source
Carbon Source
Photoautotroph Light CO2
ChemoautotrophInorganic
chemCO2
Photoheterotroph
LightOrganic chem
Chemoheterotroph
Organic chemOrganic chem
How do Archaea tolerate the heat?
• Proteins stabilized by more ionic bridges between amino acid r-groups and more-hydrophobic core amino acids
• Heat shock protein (chaperonins) refold denatured proteins…Pyrococcus 121°C for 1 hour!
• DNA depurination reduced by presence of 2,3-diphosphoglycerate.
• DNA supercoiling by reverse gyrase reduces denaturation
• Sac7d in Sulfolobus is a minor groove protein increases the melting temperature by 40°C
• Histone-like proteins help stabilize DNA as well
A water mold, Phytophthora infestans, was responsible for the potato blight that led to crop failure, starvation, and emigration of the Irish population in the 1840s.