1.How does meiosis differ from mitosis? What is the ploidy number of the products in both processes? The main difference between mitosis and meiosis is that mitosis involves the process in which a diploid cell divides into two identical diploid cells. So, basically, a cell that has two entire copies of an organism’s chromosomes splits into two… Continue reading Week Reflection 3/20-3/23
3 things I learned: There are two kinds of genes that can result in caner. One, oncogenes, speed up the cell cycle, while, two, tumor suppressor genes, are what inhibit a defective cell from continuing on in the cell cycle, and are the “brakes” of the cycle. Oncogenes and tumor supressor genes are spread throughout… Continue reading Weekly Response 3,2,1 (3/6-3/10)
Describe the overall structure of a chloroplast and where the two major steps of photosynthesis take places. Talk about the thylakoid and the stroma. Discuss the light reactions (Photosystems I and II, ATP synthase, the electron transport chain) and the Calvin Cycle.
Compare and contrast anaerobic cellular respiration and aerobic cellular respiration. Address glycolysis, the citric acid cycle, oxidative phosphorylation, lactic acid fermentation, alcohol fermentation, NADH, FADH2, and ATP. Well, first off oxygen is required for oxidative phosphorylation to work properly because without it the electron transport chain does not function. Oxidative phosphorylation produces the most ATP… Continue reading Semester 2- Week 1
We started off this week learning about the signal transduction pathway. The basic gist of the signal transduction pathway is that it starts with a ligand that floats on the outside of the cell. That is the first step to the four step process. The next step, reception, occurs when the ligand bonds perfectly to the receptor protein which is located in the cell membrane. Once the ligand is fitted into the receptor protein, transduction is activated. (Step 3). This all now happens in the cytoplasm. A relay protein was activated during reception, and now activates other relay proteins. The activating of multiple proteins, one after another is called amplification. The fourth step is the response. Below is an image of the signal transduction pathway.
I, unfortunately, missed both Monday and Tuesdays class, so I can only recall what we learned and discussed during Thursday’s class. On Thursday, we mainly learned about the characteristics of the plasma membrane. The plasma membrane is an organelle that is extremely important to the life of a cell. It is through this membrane, also… Continue reading WEEK 12
This week in AP Bio, we continued discussing catalase. In class on Monday and Tuesday we conducted an experiment to see how catalase would react with hydrogen peroxide. (2A) To start off our experiment, we created yeast balls with catalase in them to serve as yeast balls. We then dropped the yeast balls into the… Continue reading Week 11
