Sunday, September 16, 2012

IMPORTANT TO KNOW

Before you read the information given to you, all facts have been taken out of Solomon-Berg-Mar Biology text book, unless given a citation at the bottom of the post.

Prokaryotic vs Eukaryotic

Differences: The main difference between these two cells is that a Eukaryotic cell has a nucleus, while a Prokaryotic cell doesn't. Eukaryotic cells are generally found in plants and animals, while Prokaryotic cells are found in bacteria and Archeae. Eukaryotics are multicellular plants and animals, and Prokaryotics are unicellular like bacteria. Eukaryotic cells have lysosomes and Prokayriotics don't.

Similarities: The only similarities between the two are that they both have vacuoles and vesicles.





diffen.com. "Eukaryotic Cell vs Prokaryotic Cell - Difference and Comparison | Diffen." Diffen - Compare Anything. Diffen. Discern. Decide.. N.p., n.d. Web. 16 Sept. 2012. <http://www.diffen.com/difference/Eukaryotic_Cell_vs_Prokaryotic_Cell>.

Plant v. Animal Cell

Differences: Plants have a cell wall while Animal cells don't. An animal cell is a very irregular shape while all plant cells are a fixed rectangle. Animal cells may have one or more small vacuole while plant cells have one large vacuole that takes up 90% of the cell. Animal cells have no chloroplasts while plant cells need them to survive. Animal cells have many lysosomes while plant cells usually don't.

Overall I would prefer to be a plant cell seeing as it makes its own food so the energy doesn't have to go through another 90% energy loss to get to the next level in the food chain.




diffen.com. "Animal Cell vs Plant Cell - Difference and Comparison | Diffen." Diffen - Compare Anything. Diffen. Discern. Decide.. N.p., n.d. Web. 16 Sept. 2012. <http://www.diffen.com/difference/Animal_Cell_vs_Plant_Cell>.

Cell Wall

I am the cell wall and I can only be found in plant cells. For some reason the animals don't need me. My main function is to keep the wanted stuff in, and the unwanted stuff out. I also have these propeller like objects called flagella that help the entire cell move around.


Lysosome

I am a bunch of small sacs of enzymes dispersed around the cell of a eukaryote. Researchers have found 40 different types of enzymes inside of me. I usually confine my enzymes and their actions to just inside of me, but when the tissue around me breaks, I am referred to as a "leaky" lysosome. My primary form is made by budding from the Golgi complex and my hydrolytic enzymes are synthesized in the Rough ER. When one or more of my primary forms fuse with the vesicle containing the ingested material (bacteria/debris) I become a larger vesicle called a secondary lysosome. When one of my enzymes is missing, it means bad news for humans. A great example of this is Tay-Sachs disease. A lipid can't be broken down inside of the brain due to a missing enzyme and it accumulates and kills somebody.

Nuclear Envelope

Basically, I separate the whole nucleolus from the rest of the cell. There are two of me that are separated by 20-40 nano-meters. Occasionally, my two walls will come together to form nuclear pores, which consist of protein complexes.

Chloroplast

My kin the mitochondria has probably already spoken much about me and my function. Yes, my main objective is to carry out the process of photosynthesis for the cell that I am housed in. Though he did not tell you that the way I am able to achieve such a bright green is the chlorophyll that I am safe-keeping. I also have two other light-absorbing yellow and orange pigments known as carotenoids.I am formed when my parents, Proplastids, are stimulated by exposure to