...and a eukaryotic cell. ANSWER: Prokaryotic and Eukaryotic organisms: are composed of cells, the basic unit of life, with each cell surrounded by a cell membrane while membranes are composed of phospholipids, proteins and carbohydrates arranged in a fluid mosaic structure. The main different between the both cell organism is nucleus: Prokaryotic cells are smaller and simpler organisms without no nucleus but most are unicellular, while eukaryotic cells are larger organisms with a nucleus but often multicellular. Differences Prokaryotic cells Eukaryotic cells Protein DNA is circular, without protein. DNA is associated with protein to form chromatin. Cell wall Cell division is by binary fusion Usually...
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...Prokaryotic and Eukaryotic Cells | | Part of our definition/description of what it means to be a living thing on Earth includes the assertion that living things are made of cells and cell products. In other words, we consider the cell to be a pretty fundamental structural aspect of life. Cells in our world come in two basic types, prokaryotic and eukaryotic. "Karyose" comes from a Greek word which means "kernel," as in a kernel of grain. In biology, we use this word root to refer to the nucleus of a cell. "Pro" means "before," and "eu" means "true," or "good." So "Prokaryotic" means "before a nucleus," and "eukaryotic" means "possessing a true nucleus." This is a big hint about one of the differences between these two cell types. Prokaryotic cells have no nuclei, while eukaryotic cells do have true nuclei. This is far from the only difference between these two cell types, however. Here's a simple visual comparison between a prokaryotic cell and a eukaryotic cell: This particular eukaryotic cell happens to be an animal cell, but the cells of plants, fungi and protists are also eukaryotic. Despite their apparent differences, these two cell types have a lot in common. They perform most of the same kinds of functions, and in the same ways. Both are enclosed by plasma membranes, filled with cytoplasm, and loaded with small structures called ribosomes. Both have DNA which carries the archived instructions for operating the cell. And the similarities go far beyond the visible--physiologically...
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...Eukaryotic and Prokaryotic Cells In some cases things can have very similar characteristics which make it difficult to tell them apart.On the other hand, they will also have certain traits that make them totally different, for an example, twins.Twins may look and act the same, but there are somethings about them that are totally different, which distinguishes them from one another. Eukaryotic Cell and Prokaryotic Cells are just like twins. I say this because they are very similar in certain aspects; however, they also have qualities which allow them to be differentiated. According to the text, Eukaryotic cells is defined as “a cell whose DNA is enclosed in a nucleus and associated with proteins and contains membrane-bound organelles”. Prokaryotic cells are defined as “a cell in which the DNA is loose in the cell; eubacterial and archaebacterial cells prokaryotic. Prokaryotic cells generally have no internal membranous organelles and evolved earlier than eukaryotic cells”. The eukaryotic cell and prokaryotic cells are alike in many ways. For example, they both have DNA as their genetic material, they are both membrane bound, they have ribosomes, they have similar basic metabolism, and they amazingly diverse in forms. This would be the twin like features that they have. However, the eukaryotic cell and prokaryotic cells may both have DNA, one is more complex which makes the eukaryotic cell more extensive...
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...Eukaryotic and Prokaryotic Cells Antibiotics are chemical substances that are produced by bacteria and fungi to fight or kill microorganisms. There are two types of microorganisms, and they are the Eukaryotic and Prokaryotic cells. They differ according to the cell wall size, the morphology of the ribosome and how they metabolize. These differences determine how an antibiotic therapy is chosen to treat microorganisms. The cell wall difference is the most important distinction between Prokaryotic and Eukaryotic cells. Some of the distinguishing features of the cells include the following. Prokaryotic cells: * Do not have a predefined nucleus * Smaller (7oS) ribosomes * Chromosomes are dispersed in the cytoplasm * Most metabolically diverse * Small – typically 0.2-2.0 micrometers in diameter * Don’t undergo meiosis but reproduce sexually by the transfer of DNA fragments through conjugation * Contain no membrane-bound organelles * Have circular chromosomes and lack histone proteins Eukaryotic cells * Have linear DNA and contain histone proteins * Reproduce sexually with the use of meiosis * Contain membrane-bound organelles * More complex, evolved organisms * Larger (8oS) ribosomes * Contain true nuclei in which chromosomes are compacted as chromatin * Larger – typically 10-100 micrometers in diameter Different Antibiotics target only certain types of cells, and this is why it is important to know the structure...
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...A cell can be defined a eukaryotic cell if it has a membrane-bound nucleus. All of the organisms we will able to see with the optic are composed of 1 or a lot of eukaryotic cells, with most having more than one. All eukaryotic cells have • DNA AND RNA • Nucleus • Ribosomes • Plasma membrane • Cytoplasm, including the cytoskeleton The Nucleus and Eukaryotic Genetic Material The nucleus is the control Centre for a cell. The nucleus stores all the information the cell must grow, reproduce, and perform. This knowledge is contained in a long chain of molecules of polymer. One amongst the functions of the nucleus is to safeguard the cell’s polymer from injury. Chromosomes area is placed within the nucleus and is primarily organized structures of polymer and proteins. Eukaryotic Plasma Membrane The semipermeable membrane in eukaryotic cells is answerable for dominant what gets into and out of the cell. A series of...
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...Preponderantly, the nucleus is a specialised double-membrane bound organelle which serves a vital role in eukaryotic cells. The functions of the nucleus include duplicating & storing genetic information, and coordinating cell activities such as synthesising proteins, growth, cell reproduction, and intermediary metabolism. Structures which make up the nucleus comprise a double membrane that circumscribes the entire organelle as well as isolating it’s placates from the anatomical cytoplasm, and the nuclear envelope (bounds the nucleus.). In addition to the nucleus, eukaryotic cells contain other genus of organelles which include ribosomes, cytoplasm, mitochondrion, chromatic and etc. Each and every organelle within the eukaryotic cell performs...
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...Cell biology 1. Eukaryotic cell has a true nucleus and well defined nuclear envelop, and is generally larger as compared to prokaryotic cells. In addition to this it has got a membrane bounded organelles. It contains linear DNA molecule combined in a protein to form a chromosomes ,while that of prokaryotic is in a form of circular DNA. 2. Insulin is a hormone, which is synthesised by the pancreatic beta cell and released into the blood in response to high level of blood sugar (hyperglycaemia) in a controlled way of secretion to maintain normal blood sugar level (Normoglycaemia), and its synthesis begin in the nucleus involved DNA unravel, transcript and translated in the RER and finally secreted through plasma membrane by a process of exocytosis....
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...an estimate of the number of eukaryotic cells in an average size adult human being. Your answer should be a number (with error assessment) or number range representing your estimate of the total amount of cells based on size. Detail your answer with biological and physiological assumptions and mathematical calculations that support your final estimate. There is currently no consensus as to the true actual number of cells in the human body, as a wide range of estimates to the cell count exist among biologists. Estimates from various researchers suggest that the number of cells in the human body can fall anywhere from ten to one hundred trillion cells. Also, there are over two hundred different types of cells in the human body, and counting each of these has proven to be a rather difficult task. A number of factors can cause the variation in the number of cells in each human, including the weight of the person, their height, and the altitude on the earth in which they may live at, as higher altitudes, with less oxygen present, have extra blood to circulate more oxygen throughout the body. If the average weight of an adult is taken to be 160 pounds, and it is assumed that the average weight of a human cell is 10-9 grams, then the following calculations can be performed to find the number of cells in an average adult human body: (1cell / 10-9g) * (1000g / 1kg) * (1kg / 2.205lb) * (160lb) = 7.256*1013 cells This value of 72.5 trillion cells is close to the estimated value...
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...feel there was a lot of similarities to each other. My first organelle is the Nucleus, the Nucleus is like the manger in a sense at Knotts Berry Farm. This particular organelle is found in eukaryotic cells. The Nucleus is the main part of the cell because it controls the parts of the cell. The reason why believe that the Nucleus is like the manager because they are both full in control at all times. The cytoplasm can be the pavement and grass of the theme park. The cytoplasm is found within the cell membrane. The Cytoplasm function is it moves materials around the cell and dissolves cellular waste. The reason why i think these two are similar is because they both fill in spots, the only difference is where it is taking place....
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...University of Phoenix Material Prokaryotic and Eukaryotic Cells Worksheet Provide a list describing at least three similarities between prokaryotic and eukaryotic cells: Plasma membrane Cytosol Ribosomes Choose the chart below with two internal structures of prokaryotic cells and three from eukaryotic cells and describe their function in your own words. | |Cell Structures | | |Structure |Function | |Prokaryotic # 1 |Ribosome |Responsible for building protein according to instructions that are| | | |received from the genes. | |Prokaryotic # 2 |Nucleoid |A region where that contains coiled DNA. | |Eukaryotic # 1 |Organelles |Organelles are tiny structures that perform very specific functions| | | |within cells. | |Eukaryotic # 2 |Nucleus |An organelle that houses a eukaryotic cells DNA. | |Eukaryotic # 3 |Golgi Apparatus ...
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...Leukemia The body is composed of little cells, such as skin cells, muscle cells, heart cells, nerve cells, and bone cells. These cells turn a bit bigger, then divides to shape new cells as the body needs them (1,2). After that, when cells become old or get to be harmed, they die then a new cells take their place (2). On the other hand, in a cancerous cell this systematic breaks down (2). These cancerous cells turn out to be abnormal, old, or harmed. As a result, the process of normal cell division is different from the process of cancer cell division. Leukemia begins in the soft, inward part of the bones (bone marrow), yet regularly moves rapidly into the blood. It can then spread to different parts of the body, for example, the lymph hubs, spleen, liver, and the central nervous system (3)....
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...How DNA is packed in the nucleus of an eukaryotic cell 1) Introduction DNA, deoxynucleic acid, is known to be able to condense to form a smaller structure known as chromosomes. However, it is hard to imagine how does a 2m long DNA molecule can be packed into something which only have a rough diameter of 10µm in the eukaryotic cell. This report provides an overview on how DNA is packed in the nucleus of an eukaryotic cell. It will cover the structure of the human DNA, levels of packing the DNA and the necessity and benefits of DNA packing. 2) Structure of Human DNA The human DNA is made up of two polynucleotide strands wrapped around each other in a double helix structure. The two DNA strands in the double helix structure is oriented in opposite direction. A 3’ end of a DNA strand at the start of the strand has an OH group at its terminal, and ends with a 5’ end with a phosphate group attached to its terminal....
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...of light trapping and photosynthesis. Since the atmosphere now contained oxygen, aerobic respiration became dominant. Cells were now using oxygen to survive. The origin of life on earth began about 3.5 billion years ago. Fossils were found of the first bacteria as evidence. Prokaryotic cells do not have a nucleus or membrane bound organelles. The early prokaryotic cells had a replicating membrane, nucleotides, and amino acids. Early cells used carbon dioxide and ATP to form complex cells. Prokaryotic cells have a nucleoid region which contains DNA. The DNA is loose and there are strands in the prokaryotic cell. Eukaryotic cells contain a nucleus and membrane bound organelles. Eukaryotic cells have been using oxygen since 1.7 billion years ago. Eukaryotic cells are larger and are more complex than prokaryotic cells. These cells have more structures inside of the cell. Eukaryotic cells are...
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...Prokaryotes and Eukaryotes cell Cell theory states that all organisms are made of one or more cells. There are two basis types of cell: prokaryotes, which do not contain a nucleus, and eukaryotes, which have a true nucleus. The difference between the structure and functioning of prokaryotes and eukaryotes is so great that it is considered, by some, to be the most important distinction among groups of organisms. However, if we are to believe the endosymbiosis theory and that eukaryotes evolved from prokaryotes there must also be some fundamental similarities. A significant similarity is the fact that both prokaryotes and eukaryotes use the same genetic material (DNA) and genetic code to store and translate genetic information. But this genetic information is arranged very differently within the two types of cell. In eukaryotes the DNA is packed into chromatins and sequestered within a double membrane bound organelle, known as the nucleus, and is easily seen using a microscope. On the other hand, prokaryotes lack this distinct nucleus and nucleur membrane but instead have a nucleoid, which is an irregularly shaped region within the cell where the genetic information is localised in the form of a, usually circular, double strand of DNA. Prokaryotes and some eukaryotes are also known to have additional small satellite structures of DNA called plasmids. Both prokaryotes and eukaryotes also contain ribosomes which are the organelles responsible for accurately translating this...
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...Prokaryotes The prokaryotes area group of organisms whose cells lack a membrane bound nucleus. They are unicellular organisms, although a few such as myxobacteria have multicellular stages in their life cycles or create large colonies like cyanobacteria. Prokaryotes do not have a membrane bound nucleus, mitochondria,or any other membrane bound organelles. In other words, all their intracellular water soluble components(proteins, DNA, and metabolites) are located together in the same volume enclosed by the cell membrane, rather than in separate cellular compartments. Prokaryotes include 2 major classification domains of life are the bacteria and the archaea were recognized as a domain in 1990. These organism were originally thought to live only in inhospitable conditions such as extremes of temperature,PH and radiation but have since been found in all habitats. Ribosomes in prokaryotes are smaller than in eukaryotes. However two organelles found in many eukaryotic cell. The genome in prokaryote is held within a DNA or protein complex in the cytosol called the nucleoid, which lacks a nuclear envelope. The complex contains a single, cyclic, double stranded molecule of stable chromosomal DNA. Prokaryotes lack mitochondria and chloroplast. Instead, processes such as oxidative phosphorylation and photosynthesis takes place across the prokaryotic cell membrane. However, prokaryotes do possess some internal structures, such as prokaryotic cytoskeletons. They also...
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