Cell structure and function Cell structures come in various shapes and sizes dependent on their location within an organism and what life sustaining process it carries out. These can range from the globular protein of a red blood cell‚ designed to carry four oxygen molecules at a time to the tail like flagellum of a bacteria designed for mobility and penetration of organs within a body. There are tow major types of cells‚ prokaryotic cells and eukaryotic cells. An organelle is defined as an
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Julia Babin Ms. Bukola 11/6/2012 Bio Lab W 8 Cell Structure and Function Prokaryotic cells do not contain a nucleus. Eukaryotic cells do contain a nucleus. Organisms are eukaryotic except Bacteria and Achaea. Organelles are small membranous bodies‚ each with a specific structure and function. Prokaryotes do have cytoplasm‚ which is the material bounded by a plasma membrane and cell wall. This contains ribosomes‚ small granules that coordinate the synthesis of proteins
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Sickle Cell Anemia Sickle cell anemia is an inherited blood disease. The word anemia is defined as meaning that the blood does not have the required number of red blood cells. These cells take on a crescent shape‚ which is where the disease takes its name from the abnormal sickle shapes of the cells. It is commonly found in people from Africa‚ the Mediterranean region‚ southern India and the Middle East. “This disease of the blood was first discovered in 1910 in a black college student from the
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Cell Organelle Worksheet Organelle Nucleus Where found (plant/animal/both) In animals it’s in the center of the cell while in plants it’s found in the cytoplasm. What it does in the cell (functions) It maintains the integrity of the genes and controls the activities of the cell. Something that performs the same function in the “real world” It works like a CPU sending out messages. Organelle Nucleolus Where found (plant/animal/both) For both animal and plants it’s within the nucleus of the
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Red blood cell From Wikipedia‚ the free encyclopedia [pic] Human red blood cells (6-8μm) Red blood cells (also referred to as erythrocytes) are the most common type of blood cell and the vertebrateorganism’s principal means of delivering oxygen (O2) to the body tissues via the blood flow through thecirculatory system. They take up oxygen in the lungs or gills and release it while squeezing through the body’scapillaries. These cells’ cytoplasm is rich in hemoglobin‚ an iron-containing biomolecule that
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school. Have youbrought cell phone to school? If you have‚ what type of cell phone that you brought? Is it a black andwhite cell phone? Or maybe you’ve brought colorful cell phone? For me‚ in elementary school‚ Ihaven’t brought cell phone. But I’m sure that now all of you have brought cell phone to anywhereyou go‚ so do I. This afternoon‚ I’d like to discuss about the effect of cell phone for us as universitystudents. To start it‚ I’ll tell you about the common function of cell phone‚ after that I’ll
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Cell Biology Lab - Homework 1 Due to the week of Oct. 6-10th This is NOT a lab group project. Do the work individually. You may use any source other than your fellow students. Show your work‚ use your own words and cite all references. 1. (20 points) The HeLa S3 cancer cell line is considered to be “continuous” due to acquired mutations that enable the cells to evade senescence. This property is one of several hallmark characteristics of cancer cell lines. Describe three hallmark characteristics
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Essay 1: Are Cell Phones Dangerous? For the past several years‚ the technology industry has subdued America. More and more people are using cell phones that could play games or go on social media. This may sound fascinating‚ but could these features cause problems like addiction‚ or texting while driving? I feel that even though cell phones have been making people’s lives easier‚ these small hand-held devices are like guns‚ because both put people’s lives at risk when used at the wrong time. Have
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Cell phone’s affect on culture In the last 20 years‚ cell phones have become an increasingly important tool utilized everyday. Never before in history could we take pictures at any given time‚ access the internet‚ shop for our favorite clothing or socialize away from the home with talking‚ texting and even social networks‚ such as Facebook. Telephones today can be used as a multi-purpose computer‚ cell phones are game consoles‚ still cameras‚ email systems‚ text messengers‚ carriers of entertainment
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three main parts of a cell. plasma membrane-forms a cell’s flexible outer surface‚ separating the cell’s internal environment (inside the cell) from its external environment (outside the cell) cytoplasm- consists of all the cellular contents between the plasma membrane and the nucleus. nucleus- is the largest organelle of a cell. The nucleus acts as the control center for a cell because it contains the genes‚ which control cellular structure and most cellular activities The cell is the basic‚ living
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