IB Biology - Today we finished the few cellular structure lab interviews. Once we completed that work we looked at a couple of videos and started the process of brain storming on what we need t understand what we were seeing. In class we made a big list of the observation and needs in the form of questions. What it really comes down to is understanding how cellular membranes function and facilitate cellular processes, which is our focus this week on 1.3 and 1.4. So as you read 1.3 tonight, try to see if any of the material you take notes on start to answer these questions. Here are the videos again for your review: https://www.youtube.com/watch?v=PPCzvWgqyUI and https://www.youtube.com/watch?v=OYoaLzobQmk
Honors Biology - Today we continued to work on our measurement lab. On Wednesday we will take a quiz on this material so make sure you complete everything. By the end of today, you should have completed 5 stations. If you haven't, you should probably come in at lunch to make up your work.
Tonight for homework I need you to watch the Watch this Amazing Randi who debunked psychic on his television show: https://www.youtube.com/watch?v=joADD7jWqa4 During the 16 minutes video you will see several samples from his show. Document each of the psychic "acts", and how Randi debunked (proved it was fake) it on the right side of a new entry. Lastly, on the left side of the entry, name any current events/trends that you believe are not scientific? Make a citation of where I can find it, and then how might we be able to debunk these current events. This is NOT due until Wednesday.
IB Biology - Today we spent the majority of the time connecting the material from 1.3 with the dynamics we viewed in the videos from yesterday. We realize that there is a lot found in a cell's membrane such as cholesterol, integral proteins, protein channels such as aquaporins for passive transport, and that the proteins that we call active (sometimes called protein pumps) use ATP to power them, but when we say power them, we really also mean that he protein changes shape facilitating work to be done. We know a lot, but this lead to other questions like, "how do cells cling to each other?" or "How do they communicate?" or just "How do they do their job when they are deep within a tissue?" Tonight what I need you to do is to to give me a DETAILED idea of a day in the life of a cell. You may pick any cell to do. Find out how it works in doing it's job and then answer the question in detail about how it communicates, how it transport it's product to the body, how it hangs on to the other cells in the tissue, and how it might defend itself. Remember that our whole function is to examine the role of how the membrane facilitates these activities, but also what it is that the organelles do.
Lastly, I want you to come prepared to discuss Davson-Danelli model vs. Singer-Nicholson -.Fluid Mosaic model. This means that you should know what they are, how were the models discovered, and why each model might provide insight to cells.
Honors Biology - Today was your very last day of working on the measurement lab stations. You had enough time to get them done and tomorrow you will take a quiz on the concepts, and you will also input some of your data, so make sure your work is all correct. Tonight you should complete the homework that was assigned yesterday. If you don't remember what to do and how to do it, just look above.
IB Biology - Okay, so today we were able to start looking at how membranes interact with each other; how they cling, spacing, how endocytosis is triggered, and how materials can make their way from one side of a cell to the other. Tonight I want you to review 1.4 and to come prepared with any questions that still linger. I also need you to complete the TOK question in the book on page 36 as well as the DBQ found on the same page. Oh, and here's the game we played in the beginning of class: https://biomanbio.com/HTML5GamesandLabs/Cellgames/celldefensehtml5page.html
Honors Biology - Today we took an exciting quiz on the work you did for your measurement lab. If you didn't do great on this quiz you can always see me for some help and you can bring that grade up to a C!!! Yippee! Later in the day we discussed the idea that we haven't learned any biology so far! YOu're right, but today we start! You streaked some Petri dishes with swabs from various objects. I'm now incubating these and we will periodically check them to see if anything grows. We did this because our first unit deals with health and NO ONE in any of my classes could tell me what happens when you get sick. ...I didn't think you would know, many people don't know. So, to prepare for tomorrow I want you to start a new entry called, "Things in the Microscopic world" On the right side I want you to list 6 things that are living that we can only see with a microscope. These drawings should be evenly spaced out on the right page. You might include bacteria, viruses, and other itty-bitty things. Would fungi be there too? I wonder if all single celled organisms are bacteria? IS a virus really living (include virus even though it isn't)? Dig around and get your drawings down!
IB Biology - Today we got a good chance to discuss and review 1.3 and 1.4 and more specifically the TOK and DBQ questions on page 36. If you find these confusing lie some of you did, keep plugging, today felt very successful! Tonight I need you to be prepared for the quiz on these chapters, but I really want you to know about he action of sodium-potassium pumps in nerve cells. Please illustrate this cell, and the process, but then explain with diagrams how nerve toxins interfere with this process. Here's something that will help: https://res.mdpi.com/toxins/toxins-02-02359/article_deploy/html/images/toxins-02-02359-g007.png In addition, and in preperation for our upcoming lab, be sure you study the DBQ on page 42. There is a chance there could be a question on the quiz. I wonder why they would use percent mass change instead of another unit of measurement? ...You should have an answer.
Honors Biology - Today we took a good look at the size of things. We learned that the mm, micrometer, and nanometer are necessary to understanding the sizes of things. You may ask why do we need these? ...and that's a good question, but know that we are trying to figure out how to microscopic thing interact to cause disease in our bodies! This is the first step to understanding the structure of these tiny things! Tonight, on the left side of the entry that we worked on today, I need you to create a detailed drawing of a generic, non-specialized, animal cell. Here's a very simple picture you can copy, but you can use others as well. http://www.enchantedlearning.com/subjects/animals/cell/
Please make sure that you illustrate properly which means to use a ruler to attach labels to organelles/parts. Give 7 words of less to describe function and this should be next to the label. Use color to differentiate the organelles as well. MAKE IT NEAT!
IB Biology - Today we worked on reviewing everything from our latest 2 units, 1.3 and 1.4. Next we took a quiz after the review, and then discussed the introductory formal lab that deals with the concept of osmolarity. I've posted a sample lab so you can get an idea of what it might look like, check it out. Lastly, before we get to next week I want you to watch the video that deals with a statistical test called the Student T-Test. The only thing I want you to come prepared with is the answer to, "When would I use the Student T-Test?" Here's the link:https://www.youtube.com/watch?v=AGh66ZPpOSQ&feature=em-uploademail
Honors Biology - Today we came back together and had a chance to really differentiate between the various microorganisms that might be considered pathogens (Disease causes). Now we know that their sizes and also their structures. But our original questions still remains, How do viruses and bacteria make us sick? Which is what we titled the right hand side of a new entry. Then, after looking at the powerpoint that I attached below, we tried to get some essential questions that relate to what we REALLY need to know to answer this question. The most important first step is How do these cells/viruses come into contact with each other? Which means we first need to look at membranes! By Wednesday of next week I want you to specialize in any type of pathogen you like and to create a one pager. The powerpoint is below and towards the end all of the criteria for this project, and additional resources are listed. This is due next WEDNESDAY!
This page contains nearly everything that you need if you missed class.