Link to AP Bio web lab on Transpiration http://www.ucopenaccess.org/courses/APBioLabs/course/index.html
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Okay, so I had the great idea that I could solve the problem of world hunger and simultaneously win both the Nobel Prize for Science and World Peace by developing skin cells that contained chloroplasts. Some other folks out there have already been thinking along these lines... read the following article to find out more. It's not all that outrageous of an idea... is this something that could actually worK? What are some of the challenges facing this approach to ending world hunger? Give me your thoughts, reactions, comments on this after reading the article at the following link. What are the pro/cons/challenges that photosynthetic people would face? (5 pts) Post comments here. http://hplusbiopolitics.wordpress.com/2008/08/12/photosyntheti-people/ Your thoughts... Here are some really interesting items that could help you apply the concepts we've been learning about membranes and how about enzyme catalysts work, most notably, catalase. Read on for ways to enhance and extend your understanding of the marvelous world around you...
For each one, you may earn 5 pts bonus if all elements are fully and accurately explained. 1. Draw and color diagram(s) to show and explain how a neuron generates a membrane potential to transmit an electrical signal using transport (channel) proteins. Be sure to describe all the types of molecules involved (including neurotransmitters). See pg. 1050-51 in your text and watch BioFlix videos Ch 7 & 48. 2. Explain how catalase may be reponsible for hair turning gray. Read the following articles and explain the functions of catalase enzyme and the other factors involved to explain the mystery of graying hair. http://www.sciencedaily.com/releases/2009/02/090223131123.htm and http://www.fasebj.org/content/23/7/2065 and http://www.loc.gov/rr/scitech/mysteries/grayhair.html 3. What do membrane proteins have to do with a "stiff" as in a dead body undergoing "rigor mortis? Read on to find out. Draw a diagram to aid in your explanation. http://chemistry.about.com/cs/biochemistry/a/aa061903a.htm Relate to how muscle cells work normally; http://health.howstuffworks.com/human-body/systems/musculoskeletal/muscle3.htm To access the Glogster classroom for your adaptations poster go to http://edu.glogster.com and type in the log-in and passcode you were given in class. Your poster projects need to be finished by Monday so others have time to comment by Tuesday. Here are the guidelines again... the poster should have examples and explanations of the following types of adaptations: cryptic colorations, resemblance coloration, warning coloration, protective mimicry (Batesian & Mullerian) and aggressive mimicry. To review explanations of each of these scroll down to the next blog post about ecosystems.
Good luck and have fun! Ms. H As you all know, our first unit this semester is about Ecology and the Biosphere. To review the concepts you learned about through your summer assignments, we will be sharing our understanding of this topic by exploring various ecosystems and looking for the abiotic and biotic factors that shape them. To do this we will use a tool called Voicethread. Voicethread allows to all collaborate on a group project about Ecosystems and communicate our understandings with each other. To get started visit the following link and follow the instructions given on each page. After completing that task you will upload your own photo of an ecosystem and then describe the ecosystem by either commenting via a recording or by typing on the Voicethread. You will receive your log-in information for uploading to the Voicethread in class. If you have questions please post them as a comment below. Click the following link to get to the Ecosystem Voicethread. Here's a little background on Ecosytems to help you do your Voicethread project. Producers must be able to make their own food (either by photosynthesis or chemosynthesis). A food chain consists of a series of energy transfers from one trophic level to the next. Food chains start at trophic level 1 with primary producers, move to herbivores at level 2, predators at level 3 and typically finish with carnivores or apex predators at level 4 or 5. The path along the chain forms a one-way flow along which energy travels in the form of food. Oxygen, water, and other inorganic substances are not energy sources and therefore not a part of a food chain. On another note, types of adaptations fall into 1 of 3 categories: behavioral, physiological, or anatomical. Types of anatomical adaptations are:
Our discussion on fraternal twins and cell division brought about the discussion of chimeras. Read on to find out more.
http://abcnews.go.com/Primetime/story?id=2315693&page=1 http://en.wikipedia.org/wiki/Chimera_(genetics) Also, this is your reminder to bring your $45 AP Bio shirt money. Here is an interesting article regarding apoptosis, one of our recent topics of study. This article discusses the role of apoptosis in normal brain development and it's role in such devatasting diseases such as Alzheimer's and Lou Gehrig's Disease, otherwise known as ALS. To find out more read the article at the following link:
http://www.alsa.org/research/about-als-research/cell-death-and-apoptosis.html Please watch the following video... then leave a comment of your thoughts, reactions, and ideas of how this video relates to our study of the interactions that happen between and within our cells. Here's an update to the original article I read 10 years ago regarding the Kodiak deer. Originally, it was thought that the underlying cause of the mutated deer which have been found to be genetically closely related, to be a result of inbreeding. However a more recent study has shown that that may not be the case. To find out more, read the article at this link. For an extra 5 points on your next packet, write a summary of the article and what scientists think is causing this high incidence of the conditions found in the deer.
Here's the link: http://www.kodiakdailymirror.com/?pid=19&id=7502 |