About Science Prof Online PowerPoint Resources • Science Prof Online (SPO) is a free science education website that provides fully-developed Virtual Science Classrooms, science-related PowerPoints, articles and images. The site is designed to be a helpful resource for students, educators, and anyone interested in learning about science. • The SPO Virtual Classrooms offer many educational resources, including practice test questions, review questions, lecture PowerPoints, video tutorials, sample assignments and course syllabi. New materials are continually being developed, so check back frequently, or follow us on Facebook (Science Prof Online) or Twitter (ScienceProfSPO) for updates. • Many SPO PowerPoints are available in a variety of formats, such as fully editable PowerPoint files, as well as uneditable versions in smaller file sizes, such as PowerPoint Shows and Portable Document Format (.pdf), for ease of printing. • Images used on this resource, and on the SPO website are, wherever possible, credited and linked to their source. Any words underlined and appearing in blue are links that can be clicked on for more information. PowerPoints must be viewed in slide show mode to use the hyperlinks directly. • Several helpful links to fun and interactive learning tools are included throughout the PPT and on the Smart Links slide, near the end of each presentation. You must be in slide show mode to utilize hyperlinks and animations. •This digital resource is licensed under Creative Commons Attribution-ShareAlike 3.0 : http://creativecommons.org/licenses/by-sa/3.0/ Alicia Cepaitis, MS Chief Creative Nerd Science Prof Online Online Education Resources, LLC [email protected]m the Virtual Cell Biology Classroom on ScienceProfOnline.com Image: Compound microscope objectives, T. P Tami Port, MS Creator of Science Prof Online Chief Executive Nerd Science Prof Online Online Education Resources, LLC [email protected]
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
About Science Prof Online PowerPoint Resources
• Science Prof Online (SPO) is a free science education website that provides fully-developed Virtual Science Classrooms, science-related PowerPoints, articles and images. The site is designed to be a helpful resource for students, educators, and anyone interested in learning about science.
• The SPO Virtual Classrooms offer many educational resources, including practice test questions, review questions, lecture PowerPoints, video tutorials, sample assignments and course syllabi. New materials are continually being developed, so check back frequently, or follow us on Facebook (Science Prof Online) or Twitter (ScienceProfSPO) for updates.
• Many SPO PowerPoints are available in a variety of formats, such as fully editable PowerPoint files, as well as uneditable versions in smaller file sizes, such as PowerPoint Shows and Portable Document Format (.pdf), for ease of printing.
• Images used on this resource, and on the SPO website are, wherever possible, credited and linked to their source. Any words underlined and appearing in blue are links that can be clicked on for more information. PowerPoints must be viewed in slide show mode to use the hyperlinks directly.
• Several helpful links to fun and interactive learning tools are included throughout the PPT and on the Smart Links slide, near the end of each presentation. You must be in slide show mode to utilize hyperlinks and animations.
•This digital resource is licensed under Creative Commons Attribution-ShareAlike 3.0 : http://creativecommons.org/licenses/by-sa/3.0/ Alicia Cepaitis, MSChief Creative NerdScience Prof OnlineOnline Education Resources, [email protected]
From the Virtual Cell Biology Classroom on ScienceProfOnline.com Image: Compound microscope objectives, T. Port
Utilizes glycolysis, synthesis of acetyl-CoA, Krebs cycle, and electron transport chain; results in complete breakdown of _________ to carbon dioxide, water and
The ultimate objective is to make molecules to do cellular work.
Q: How many total ATP can be obtained from one glucose using
aerobic cellular respiration?
ATP
ATP
From the Virtual Cell Biology Classroom on ScienceProfOnline.com
All have a strictly fermentative mode of metabolism (Don’t’ use oxygen).
Vegetative cells are killed by exposure to O2, but their endospores are able to survive long periods of exposure to air.
Known to produce a variety of toxins, some of which are fatal.
Clostridium tetani = agent of tetanusC. botulinum = agent of botulismC. perfringens = one of the agents of gas gangreneC. difficile = part of natural intestinal flora, but resistant strains can overpopulate and cause pseudomembranous colitis. Images:Clostridium botulinum: stained with Gentian violet. CDC
Public Health Image Library. (PHIL #2107), 1979; Charles Bell 1809 painting.
Clostridium botulinum
From the Virtual Cell Biology Classroom on ScienceProfOnline.com
• Many anaerobic bacteria, and muscle cells that have run out of O2, can make ATP by using something other than oxygen as an electron acceptor (nitrate, sulfate & carbon dioxide).
• In anaerobic respiration, not all the ETC is used, so less ATP is produced.
Image: Electron transport chain, Tim VickersFrom the Virtual Cell Biology Classroom on ScienceProfOnline.com
• Yeasts and some bacteria are able to get their ATP from glycolysis by using __________ fermentation. Converts pyruvate into ethanol and carbon dioxide.
• Animal cells and some bacteria through the process of _____ ______ fermentation. Here pyruvate results in end product of lactic acid.
The formation of carbon dioxide, a byproduct of ethanol fermentation, causes bread to rise.
Images: Bread Rolls, Bangin; Dexter Jackson, Local Fitness
When muscles need energy produced faster than the body can deliver oxygen, such as when lifting
heavy weights, the working muscles generate energy anaerobically, through lactic acid
fermentation.
Two different fermentation pathways:
From the Virtual Cell Biology Classroom on ScienceProfOnline.com
• Fermentation of carbohydrates to organic acid products is commonly called _________.
• Sour cream, cheese, and yogurt are produced by the action of fermenting bacteria.
• Lactic-acid bacteria of the genus Lactobacillus are used in the fermentation process.
• Bacteria convert lactose to lactic acid, which causes milk to change from liquid to solid curd.
• __________, or putrification, is when microbes use anaerobic respiration to break down proteins, releasing nitrogen and sulfur-containing organic compounds.
• Anaerobic respiration of protein often produces foul smelling chemicals such as putrescine, cadaverine & hydrogen sulfide.
From the Virtual Cell Biology Classroom on ScienceProfOnline.com