Cells and our government are alike in many ways‚ both are made up of smaller components which work together to maintain a stable environment. The organelles can be compared to parts of our government in the way they work together. The nucleus is the main organelle in the cell‚ it makes rna and contains dna‚ this is similar to congress because they make laws which is similar to rna. The golgi apparatus packages carbohydrates and proteins into vesicles and export them out of the cell. This can be
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that contains the genetic info. 4 billion codes in length Gene- a segment of DNA that controls a certain protein production. A gene is made up of hundreds to thousands of codes. Chromosomes- genetic material that is coiled up into structures during cell division. Importance of DNA- genes control the production of proteins..(look like‚ body function‚ body communications‚ and enzyme control) DNA screening- the process of testing individuals to determine whether they have the gene(s) associated w/
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Photosynthesis vs. Solar Cells When the subject of solar energy is discussed both the ideas and processes of photosynthesis and solar cells are the basis of these conversations. While both are processing or converting light into energy‚ which will be explained further‚ it is the type of energy that is vastly different. Photosynthesis as a process used by certain plants to convert the suns energy into food. When the electromagnetic energy from the sun reaches a green plant the chlorophyll in
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Animal and plant cells Part Function Nucleus Contains genetic material‚ which controls the activities of the cell Cytoplasm Most chemical processes take place here‚ controlled by enzymes Cell membrane Controls the movement of substances into and out of the cell Mitochondria Most energy is released by respiration here Ribosomes Protein synthesis happens here Extra parts of plant cells Part Function Cell wall Strengthens the cell Chloroplasts Contain chlorophyll‚ which absorbs light energy
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single cell to divide and produce all the differentiated cells in an organism‚ including extraembryonic tissues. Totipotent cells formed during sexual and asexual reproduction include spores and zygotes. Zygotes are the products of the fusion of two gametes. In some organisms‚ cells can dedifferentiate and regain totipotency. For example‚ a plant cutting or callus can be used to grow an entire plant. Human development begins when a sperm fertilizes an egg and creates a single totipotent cell called
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Nucleus: In the kingdom the nucleus is the king. The nucleus is a membrane-bound organelle found in the center of the cell that contains all of the genetic information‚ and DNA and controls the rest of the cell. To the kingdom the nucleus is the king because of how he controls the kingdom and is responsible for the wealth of the town through his actions. Additionally not all cells have a nucleus. Just as not all kingdoms have a king. The Nuclear Envelope: The nuclear envelope is similar to the king’s
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ASSIGNMENT 1 SOLAR POWERED CELL PHONES MELODY MCINTOSH STRAYER UNIVERSITY ASSIGNMENT 1 SOLAR POWERED CELL PHONES 1 Intro Ever been stranded somewhere and your cell phone battery dies? Help is on the way. The new solar powered cell phone will allow you to gain two hours of standby power from 10 minutes of sun. It can be charged with indoor light when no direct sun light is available. This cell phone can also be charged by charger. Features will be the same as traditional
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Abstract: Solar energy is quite simply the energy produced directly from the sun and collected elsewhere‚ namely the Earth. Photovoltaic technology directly converts solar energy into electricity. Photovoltaic thin film solar cells are easy to handle ‚ inexpensive and also easy to use. Thin film panel is flexible and can tolerate a bullet hole without failing and can greatly increase the surface area and the absorption coefficient needed to generate electricity. This paper will discuss the advantages
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first modern solar cell In 1954‚ the first modern silicon cells raised by Bell Labs‚ then it shown at the National Academic of Science meeting. Moreover‚ this kind of cell can make 6 percent efficiency. Then‚ the New York Time come up with that the cell would lead to a source of “Limitless energy of the sun”. In 1955‚ the Western Electric created very significant solar cell technologies. The technology start to use in makes solar cells. In 1957‚ the AT&T telecom company used the “solar battery”
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Photosynthesis and Semiconductor-Based Solar Cells Photosynthesis‚ by definition‚ is “the process by which green plants and certain other organisms transform light energy into chemical energy” (photosynthesis‚ 2011). This is a remarkable process that occurs naturally and is one that is required for all living organisms to sustain existence on this planet. The efficiency of this process has sparked inventions‚ such as the semiconductor-based solar cell‚ that would allow humans to produce energy
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