Monday - Holiday
IB Biology - Today we started to work on our first deep investigation that relies on what we are learning, statistical analyses, and is an introduction to how to write an IA. You can find a pdf of the paper I handed out at the bottom of last week's postings. You should have divided up the material among your group and created a shared document. By tomorrow there are a number of things I need you to do. First, bring in your tissue samples that you will use with your lab. Second, know how to figure out molarity so we can create our solutions. Lastly, I want you to start the process of knowing the content in 1.5 and 1.6, the final chapters in this unit. Some of the finer points you should know (although you should know it all) are Pasteur's and Redi's experiments, cyclins and how they were discovered, and what a mitotic index is used for, but we'll get to these later in the week.
Honors Biology - Today we started our day by reviewing your homework which was the one pager on the microorganism. Next, we updated out table of contents and reviewed our essential questions so we are reminded of what we know up to this point. We then looked at the Petri Dishes we were growing from next week. The next thing we did was play a funky game: https://biomanbio.com/HTML5GamesandLabs/Cellgames/celldefensehtml5page.html The last thing you did was you created an accurate drawing of a cell membrane which included color, labels, and annotations. What didn't get finished in class can be finished at home.
IB Biology - Today we started on our lab by learning about molarity and creating solutions. Tomorrow we'll take initial mass and start the osmolarity lab for real. While the basic procedures should already be constructed by you and your group, I now need you to just hold on this for now and make sure you are prepared for 1.5 and 1.6 quiz. One of the last topics you need to be familiar with is mitosis, cyclins, and controls in the process. Do you know how these are connected to cancer? Do you know what an oncogene or a carcinogen is? You should know what a tumor actually is? What does metastasis mean? Be sure to do the work on the DBQ on page 59.
Honors Biology - Today we reviewed microorganisms through the one pagers you turned in. Then we started a new entry titled Microscopy, a way to see cells and their membranes. Then I showed you how to use cells and we made a quick sketch of a microscope on the right hand page, annotating and labeling as we went. We also discussed whether we would see cells, bacteria, and viruses. Lastly, we discussed how to make slides and when, and why, we use stains. Then you got to look at a hair under the microscope to start your practice. Tomorrow we will be looking at cells so come prepared with some type of tissue to view. Some tissues that work really well are onion, bananas, fruits and roots in general, but remember that you only need TINY amounts. Please don't bring whole fruits, etc.
IB Biology - Today we spent part of our time talking about the material from 1.5 and 1.6. We also discussed what would be on the quiz, but I think we'll push that quiz until next week. Tomorrow you will be placing your 5 samples in each solution once you have weighed an initial mass for each piece. This means that you will have 5 samples in EACH solution for a total of 60 pieces (30 potato and 30 other). Make them small, but unique when you cut them. If you think about it, putting 5 cubes in a beaker that are all the same size could be confusing. If you cut the cubes a bit different in shape and size it should be easier to figure out. So, long story short, take this additional time that I am giving you to prepare more questions for me about cells and I'll do my best to answer them. Next week will be the big unit exam, but not before we take a quiz on the last two sections.
Honors Biology - Today we started by discussing the recent Ebola outbreak in DRC. It was interesting to see how cultural influences can really cause problems for people trying to help. IN addition, we discussed how Ebola actually attacks your cells/body, which is our whole focus right now! Next we reviewed how to use the microscope from yesterday and created illustrations of three kinds of cells (aquatic plant, human cheek, and your tissue). I felt a little rushed today so we'll review tomorrow and maybe have a bit more time to use the scopes. BUT don't forget that we are doing all of this because we are learning about cell structure and how this is related to you getting sick. Tonight, below the drawing you made of the CELL MEMBRANE a few nights ago(It's on the left side of entry 9 for me), I want you to speculate on how you would attack a cell if you were a virus of bacteria. This is should be a labeled illustration with a couple of sentences explaining, and should use the proper vocabulary (protein channel, phospholipid, protein pump, passive transport, etc.). You don't have to be a genius, just look at the structures of the membrane and think about what could cause problems.
IB Biology - Today was fundamentally a day of lab work! You set up your work and on Monday we will recover the samples and take final mass measurements. You already know that we have pushed back the quiz and final unit exam so please make sure not to forget and prep for that quiz. On Tuesday we'll take the quiz and prep for our unit exam which will be on Wednesday.
IB TOK Opportunity from Mr. Davis: Please review the following as we have a doctoral student who will be Skyping in to discuss this topic with you:
How far should humans go in editing life from its genome with different techniques such as CRISPR/CAS if this could mean changing the ontology of the being (plant, animal, human) that we are modifying? You must argue this not only from the scientific evidence but from at least two of the four ethical theories we have studied (Virtue Theory, Natural Law, Utilitarianism and Kantian Ethics).
Honors Biology - Today we continued looking through the microscope and we even found some protists swimming around! But really our main focus has been looking at the differences in structure between plant and animal cells. So, you should have made a CAREFUL illustration of each type of cell, CAREFULLY labeled them with the cell parts that are visible, and then CAREFULLY annotated those labels with the function of this part. But what are the differences? Be sure to list the obvious differences under your drawings.
Now, Someone asked a really good question today, "Can plants get diseases too?" and the answer is Yes, but not exactly the same kinds. We'll attack that next week.
Lastly, You received an article. You will notice that I set it up so that it is Cornell Note style. In the Q column (the blank on the paper to the left), please be sure to use the reading strategy Read and Recall (this is on your reading reference sheet). Note, that this reading strategy asks you to make level 2 and level 3 questions. If you look in the front of your notebook you will see Costas' questions. Use these word to make your questions. Yup, just grab a level 2 or level 3 word and use it to make your question. This article will be turned in on Monday, but if you lost it, you can find it below.
This page contains nearly everything that you need if you missed class.