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Translocated: CML

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Insertion: Myotonic Dystrophy

Deletion: Williams Syndrome

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Missense: sickle cell anemia

Nonsense: Cystic Fibrosis

Silent: No disease is made

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Passive Transport is a movement of biochemicals and other atomic or molecular substances across cell membranes without need of energy input. Unlike active transport, it does not require an input of cellular energy because it is instead driven by the tendency of the system to grow in entropy.

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-from other people

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Active and passive transport are biological processes that move oxygen, water and nutrients into cells and remove waste products. Active transport requires chemical energy because it is the movement of biochemicals from areas of lower concentration to areas of higher concentration. On the other hand, passive trasport moves biochemicals from areas of high concentration to areas of low concentration; so it does not require energy.

Process

There are two types of active transport: primary and secondary. In primary active transport, specialized trans-membrane proteins recognize the presence of a substance that needs to be transported and serve as pumps, powered by the chemical energy ATP, to carry the desired biochemicals across. In secondary active transport, pore-forming proteins form channels in the cell membrane and force the biochemicals across using an electromagnetic gradient. Often, this energy is gained by simultaneously moving another substance down the concentration gradient.

There are four main types of passive transport: osmosis, diffusion, facilitated diffusion and filtration. Diffusion is the simple movement of particles through a permeable membrane down a concentration gradient (from a more concentrated solution to a less concentrated solution) until the two solutions are of equal concentration. Facilitated diffusion uses special transport proteins to achieve the same effect. Filtration is the movement of water and solute molecules down the concentration gradient, e.g. in the kidneys, and osmosis is the diffusion of water molecules across a selectively permeable membrane. None of these processes require energy.

Video explaining the differences

Here's a good video explaining the process of active and passive transport:

Examples

Examples of active transport include a sodium pump, glucose selection in the intestines, and the uptake of mineral ions by plant roots.

Passive transport occurs in the kidneys and the liver, and in the alveoli of the lungs when they exchange oxygen and carbon dioxide.

References

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"Active and Passive Transport." Diffen.com. Diffen LLC, n.d. Web. 12 Apr 2018. < >

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What's the difference between Active Transport and Passive Transport? Active and passive transport are biological processes that move oxygen, water and nutrients into cells and remove waste products. Active transport requires chemical energy because it is the movement of biochemicals from areas of lower concentration to are...

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When an animal cell or a plant cell is placed in a medium, which is a water solution , the possible consequences are listed below.

1. If the water concentration of the cell�s cytoplasm is lower then that of the medium (i.e. the medium is a hypotonic solution) surrounding the cell then osmosis will result in the cell gaining water. The water molecules are free to pass across the cell membrane in both directions, but more water molecules will enter the cell than will diffuse out with the result that water enters the cell, which will then swell up and could possibly burst.

2. If the water concentration inside the cell is the same as that in the surrounding medium (i.e. the medium is a isotonic solution) there will exist a dynamic equilibrium between the number of molecules of water entering and leaving the cell and so the cell will retain its original size.

For example, the red blood cell in the blood plasma retains its shape because of the isotonic nature of the plasma.

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Cellular dehydration causes changes within the cell. The outer boundary of the cell known as the cell membrane starts to increase its coating of cholesterol, which is a hard, waxy-like material. This extra layer of cholesterol is designed to help the cell to hold onto precious water when it is in a dehydrated state.

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Dehydration occurs when you use or lose more fluid than you take in, and your body doesn't have enough water and other fluids to carry out its normal functions. If you don't replace lost fluids, you will get dehydrated.

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P: smaller and no nucleus, reproduces quickly, DNA, no cell membrane to protect the DNA. single cell

E: nucleus, complicated, contain organelles, single or multicellular organism

BOTH: dna, ribosome, cytoplasm, and plasma membrane.

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Dehydration at the Cellular Level - MCEN4117 Dehydration

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Water is a basic need for cellular health. Cells contain water and are surrounded by wa ter. In dehydration, cell membranes become less permeable, hampering the flow of hormones and nutrients into the cell and preventing waste products that cause cell damage from flowing out.

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Why do red blood cells not have a nucleus?

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Why do red blood cells not have a nucleus?

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The red blood cells that do not have a nucleus has more room to carry oxygen. Also if the cells had a nucleus the shape of the cell would be different and not what it is supposed to be. It starts with a nucleus but it loses it when the cell knows what to do.