14 Jun Creature Cells – Does it have special cells to detect its environment or cell
sBefore preparing your response to this week’s discussion topic I recommend (not required) that you watch this video, a crash course in biological molecules, in addition to working through this week’s OLI modules:
Pick and research a topic related to chemistry and your chosen creature from last week. You could describe the chemical compounds responsible for hair or feather colors, that helps it survive in various environmental conditions like extreme cold or heat, that makes it poisounous, glow in the dark, or the chemical composition of its diet. Before you start your research state a hypothesis. Then summarize what you learned from your research and in the conclusion state whether the research support your hypothesis, or not.
As long as the topic is related to chemistry and your creature you have a free range of topics to explore here. You need to explore the topic in depth and relate it to the OLI content. Your response should be 2-3 paragraphs.
One main response is due Sunday August 31, two replies are due Tuesday September 2.
Example
Hypothesis: The eggs shells of the Great Blue Heron are made of a calcium compound that make it hard, this is important for protection of the embryo.
Research Summary:I learned that bird eggs are made primaryly of calcium carbonate, which consist of calcium ions and carbonateions, the latter consisting of one carbonatom and three oxygenatoms. The calcium and carbonate ions are connected byionic bonds, the negatively charged carbonate ions donating two electrons to the positively charged calcium ions:.
.png” alt=”http://pl.static.z-dn.net/files/d4c/e574401f5369dc2cc08fb64a7e14cc38.png”>
Image copied from: http://pl.static.z-dn.net/files/d4c/e574401f5369dc2cc08fb64a7e14cc38.png
The calcium carbonate in the ggg shells does make them hard, and this protects the bird embryos, but I also learned that they have lots of tiny pores that allow transport of various compounds, such as gasses and water, in and out of the eggs. So in other words, eggs are surrounded bysemi-permeable membranes just like other cells (we will get back to this next week).
If you are interested in learning more about the anatomy and chemistry of eggs, check out this article:https://www.exploratorium.edu/cooking/eggs/eggcomposition.html
My hypothesis was supported by the research even though the function of the egg shell is more complex than I had originally proposed.
.jpg” alt=”http://www.photovolcanica.com/PenguinSpecies/Emperor/IMG_7721.jpg”>
Emperor Penguin. My last week creature Pick.
1.
The species that I chose is the Emperor penguins. I chose this wonderful creatures because of how beautiful they look. Apart from Barn Owl they are my second favorite birds. I like how they huddle together to escape wind and keep warm. The female penguins care so much for their chicks that when they go outside they bring food home, while the male emperors go to the sea to fetch food just for themselves. I guess that doesn’t apply to every male species. They live in Anterctic ice, and like to be in water. I saw this kind of penguins in Europe and in Africa.
.Emperor penguins picture fromhttp://animals.nationalgeographic.com/animals/birds/emperor-penguin/
Topic 3. .
.gif” alt=”https://learn.umuc.edu/d2l/img/lp/pixel.gif”>Actions for Topic 3: Creature Cells
1) What type of cell does your species have?
2) Does it have special cells to detect its environment or cells that help it live in its environment? Does it have specialized cells that are important for cellular respiration or photosynthesis or important for another type of cellular process, like reproduction?
If you are unable to find information about cells in your specific species you can describe cells that are characteristic for the group of species your creature belong to (fish, birds, mammals, flowering plants, fungi etc). Use both the OLI course materials and additional resources to prepare your response.
Since the Great Blue Heron is a bird I can conclude that it has eukaryotic cells, and since it is an animal I can conclude that its cells do not have a cell wall, but they do have a cell membrane, mitochondria and a nucleus in addition to other organelles (OLI).
When i did a web-search for “Great Blue Heron cells” I came across an article titled.sagepub.com/content/22/1/131.full”>Intracellular Yeasts in Endothelial Cells of a Great Blue Heron (Ardea Herodias) In this research study scientists from Canada found that theendothelial cells of a dead Great Blue Heron containedyeast cells. This study was conducted in an attempt to understand the cause of disease in domestic birds. Endothelial cells are cells that line the inside of blood vessels. They form a barrier between the blood and the the rest of the circulatory system and allow for efficient blood flow.
This is an example of the many single-celled organisms that larger organisms contain. Yeast are single-celled fungi, which means they are eukaryotic cells. On a side note, have you heard that we humans have more bacterial cells than human cells? Check out this article to learn more:.sciencedaily.com/releases/2008/06/080603085914.htm”>Humans Have Ten Times More Bacteria Than Human Cells: How Do Microbial Communities Affect Human Health?
Topic 4
.gif” alt=”https://learn.umuc.edu/d2l/img/lp/pixel.gif”>Actions for Topic 4: Creature Growth and Reproduction
In your main response answer at least two of these questions as it related to your favorite creature:
1) How many chromosomes are found in each cell of your organism? Does this number vary between different cells? Explain.
2) Explain your species’ reproductive strategy. Sexual and/or asexual?Is mitosis and/or meiosis involved? Other processes?
3) Can your species regenerate body parts or is healing limited? Does growth and healing involve mitosis and/or meiosis?
4) Which stages does your species grow through as it develops into adulthood?
5) What happens if mitosis is out of control? Are there any known diseases associated with mitosis errors in your species?
Example:
1. I was not able to find the chromosome number for the great blue heron, but I did find that chickens and doves have 78, and that turkey and pigeons have 80. Since all birds are related I hypothesize that the Great Blue Herons chromosome number is in the same range, which is a significantly higher number than humans. This is the number of chromosomes in somatic cells. Egg and sperm cells would have half that number chromosomes.
http://en.wikipedia.org/wiki/List_of_organisms_by_chromosome_count
2. The Great Blue Heron reproduces sexually, the male producing sperm cells through the process of meiosis, and the female producing egg cells through the process of meiosis. Meiosis is the production of four haploid cells through a series of phases grouped into meiosis I and meiosis II. Each of the haploid cells that result from meiosis are genetically unique. (OLI)
Our website has a team of professional writers who can help you write any of your homework. They will write your papers from scratch. We also have a team of editors just to make sure all papers are of HIGH QUALITY & PLAGIARISM FREE. To make an Order you only need to click Ask A Question and we will direct you to our Order Page at WriteDemy. Then fill Our Order Form with all your assignment instructions. Select your deadline and pay for your paper. You will get it few hours before your set deadline.
Fill in all the assignment paper details that are required in the order form with the standard information being the page count, deadline, academic level and type of paper. It is advisable to have this information at hand so that you can quickly fill in the necessary information needed in the form for the essay writer to be immediately assigned to your writing project. Make payment for the custom essay order to enable us to assign a suitable writer to your order. Payments are made through Paypal on a secured billing page. Finally, sit back and relax.
About Writedemy
We are a professional paper writing website. If you have searched a question and bumped into our website just know you are in the right place to get help in your coursework. We offer HIGH QUALITY & PLAGIARISM FREE Papers.
How It Works
To make an Order you only need to click on “Order Now” and we will direct you to our Order Page. Fill Our Order Form with all your assignment instructions. Select your deadline and pay for your paper. You will get it few hours before your set deadline.
Are there Discounts?
All new clients are eligible for 20% off in their first Order. Our payment method is safe and secure.