1. The cell membrane structure is vital to the life of the cell. The cell membrane is shaped as having a phosphate head at the very outer surface‚ and two fatty acid tails hanging from it. The membrane is double‚ so at the tip of the fatty acid tails‚ there are two more fatty acid tails attached to another phosphate head. This is what it looks like: <br> <br>The reason the cell membrane is shaped like this is mainly to control the water flow in and out of the cell. Water is very important to
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rock around it. As the magma rises‚ it melts gaps in the surrounding rock and forms a large chamber two miles from the surface. An eruption takes place when the gas-filled magma under ground is under great pressure from the solid rock around it and this pressure causes the magma to blast‚ or melt a conduit in a weakened part of the rock. The magma moves through the conduit toward the surface and when it reaches the surface‚ the gas and magma are released. When magma and gas reach the surface‚ they
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of this experiment was to observe the process of diffusion of substances across a semipermeable membrane to gain a better understanding of how cells move materials across cell membranes. The experiment was designed to exhibit Brownian Motion; the random movement and tendency of particles of a substance to move from an area of greater concentration to lower concentration via diffusion until equilibrium has been attained. In addition to observing the passive process of diffusion‚ the experiment demonstrated
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1. How does a cell become differentiated? A cell becomes differentiated by using only the DNA that it needs. 2. Give an example of 2 differentiated cells. Two examples of differentiated cells are lysosomes and mitochondria. Lysosomes are small so they can move throughout the cell effectively. Mitochondria have a lot of surface area to make more energy 3. (Essay) What does it mean to be specialized? Explain how the structure of the cell determines its function. Give at least 3 examples. Being specialized
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The human body has five senses that keep in touch with what is going on in the external world: touch‚ taste‚ smell‚ sight‚ and hearing. Below I will describe how these senses work. Taste- The tongue is the body part that helps us sense taste. The tongue consists of taste buds (mushroom like projections) which are specific receptors for sense of taste. Each bud contains several cell types in microvilli that project through pores and chemically sense food. Gustatory receptor cells communicate with
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How Your Heart Works [pic] Your heart is a pump. It keeps blood moving around your body. The blood delivers oxygen and nutrients to all parts of your body‚ and carries away unwanted carbon dioxide and other waste products. The heart has four chambers - two on the left side and two on the right. The two upper chambers are called the atria‚ and the two lower chambers are called the ventricles. The two sides of the heart are divided by a muscular wall called the septum. Each side of the heart
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understanding how technology shapes people’s interactions with each other and vice versa and the way natural world plays a vital role in order to develop and implement new technologies and also for all those people and organizations that have to use those technologies throughout their personal and professional lives. Komal Sunil Savtale The impact or the role of technology in our professional as well as personal lives is inevitable. For those who research its necessary to understanding how technology
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Response to: Body Work: Beauty and Self-Image in American Culture In her book‚ Body Work: Beauty and Self-Image in American Culture‚ Debra Gimlin focuses specifically on how the bodies of women are turned into projects in which the goal is to attain the ideals of beauty. The most important point that she makes is that‚ “Contemporary ideals of female beauty – and the work required to become beautiful – have long-lasting and devastating effects on women” (16). Despite contemporary beauty standards
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How Batteries Work TOPIC: Explanation of how batteries work SPECIFIC PURPOSE: To inform the audience how a battery works on a scientific level THESIS STATEMENT: A battery is essentially a can full of chemicals in which chemical reactions take place to allow for the flow of electrons. Introduction I. Batteries are everywhere. They are in our cell phones‚ our flashlights‚ our cars‚ our laptops. (Attention getter) II. Life as we know it is made possible largely by batteries. III
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How were the French and Haitian Revolutions similar? They have many similarities. The similarities they both have are that they wanted rights‚ they had strict social class‚ and they had many changes. Now I’m about to tell you details and why to these similarities. One similarity French and Haitian have is that they wanted rights. The rights they wanted were freedom. The slaves wanted freedom in French and Haitian because they wanted to be treated like whites. Another right they wanted
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