1) Hypertonic refers to _______. 1) _______ A) the concentration of solutes that a cell is bathed in B) a concentration of solutes that is less than the solutes inside the cell C) the concentration of solutes inside a cell D) a solution that will cause a cell to swell 2) What happens to facilitated diffusion when the protein carriers become saturated? 2) _______ A) ATP will be utilized for transport. B)
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Structures and processes involved in the movement of substances into and out of cells. Epithelial cells – Epithelial cells are also referred to as eukaryotic cells. These types of cells have a unique nucleus and contain membrane-bounded organelles. Epithelial cells absorb and secrete‚ and the structures of a cells organelles can be viewed from an electron microscope. The nucleus – the nucleus of a cell contains most of the cell’s genetic material‚ organized as multiple long linear DNA molecules
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How does cocaine effect the body? Cocaine is a powerful and highly addictive substance. Cocaine hydrochloride remains a Schedule II controlled substance as it has some legal therapeutic applications as a pain reliever and vasoconstrictor‚ useful in association with some medical procedures. In most other cases cocaine is an illegal substance. It can be found in a number of forms such as‚ white powder‚ paste‚ or solidified and rock like‚ referred to as crack cocaine. It can provide a rapid- onset‚
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Outline the roles of membrane at the surface of the cell The plasma membrane encloses the cell‚ defines it boundaries and maintains the essential differences between the cytosol and the extra-cellular environment. The separation of the internal and external environment maintains a constant internal environment which is essential for the cell to function efficiently. Membrane receptors can interact with specific molecules corresponding to stimuli such as hormones to generate a signal cascade which
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Alejandro Ledezma English 5A 9-6-13 How is college English different? When we are in high school we are taught simple reading and writing skills. At most the teachers there just introduce us to those skills. We aren’t given much exposure to these skills during the school year. The skills taught to us are the basics and it’s not until we reach college that students see the difference in what is being taught. The things that were taught to me about reading and writing in high school were simply
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environment 1.1 Knowing the purpose of communication is knowing how to communicate with people in different ways‚ whether it’s starting a conversation with someone or sending a message it is important to know the purpose of communication when contacting another person or company as I need to find out information and normally very specific information. 1.2 If you know the audience you are communicating with you have to adapt to an acceptable way of communicating. For example‚ If a business man or woman
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“Cell Transport Lab” Hypothesis: I hypothesis that there will be a movement of molecules out of the egg‚ and will move into the water solution. Osmosis will occur within the egg‚ and in the process the molecules of the egg will diffuse. Time (hrs) | Observations | Circumference (cm) | * 0 | * Egg is of normal weight and size * No membrane is being shown‚ and is almost perfect | * 14 centimeters | * 24 | * Egg has gotten larger taking in some of the water * Shell is soft
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briefly explain how the electrically excitable membrane changes its electric potential. In other words‚ how is the cell membrane excited? At the surface of the cell membrane‚ there are three classes of gated channels exist‚ chemically gated or ligand-gated channels‚ voltage-gated channels‚ and mechanically gated channels. Originally‚ at the resting membrane potential‚ most of the gated channels are closed. However‚ when these gated channels open‚ the movement of ions across the membrane will changes
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Work Cell Simulation Robots are a major part of automation technology. Application of this technology depends on how robots are located and used in work cells. Feature-based work cell simulation software is perfect for these applications‚ because it provides an interactive and accurate virtual view of a fully combined robotic work cells that can be modeled and assessed for low cost and reliable solutions. Designers can use the software to model a work cell by acquiring a group of components‚ such
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Cheek and Onion Cell Experiment The aim of this experiment will be to show that different cells have different structures and textures. Hypothesis I believe that viewing these different cell types under the microscope will show more detail and variations between the cells. Method Apparatus All apparatus was collected and setup as shown in the table below. CHEEK CELL ONION CELL Microscope Microscope Slide Slide Methylene Blue Iodine Spatula Microscopic Cover Slip Microscopic Cover
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