Cystic Fibrosis (CF) affects the glands and epithelial cells of the body in the lungs, liver, pancreas, digestive system and reproductive system. ... In a healthy cell, this CFTR protein would act as a transport channel (transport protein) for sodium and chloride within the cell membrane. In a person with CF, this protein is unable to function properly because the instructions the defective gene has supplied on how to make this particular protein were incorrect. ... Mucus within a healthy body lubricates our internal systems, preventing tissue from drying out and protecting them from infect...

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The process in which living things respond to stimuli in ways to keep conditions in their body suitable for life is homeostasis. ... For example, in sodium, the atomic number is 11, and the atomic mass number is 22.98977. This means that sodium contains 11 protons, 11 electron, and 12 neutrons. ... Table salt is made from one sodium atom and one chlorine atom, so the chemical formula is NaCl. ... The loss of the one electron makes a sodium ion (Na+), which is positively charged. ...

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Important Facts the smallest unit of life is the cell instructions for development are contained in DNA collectively, all of the chemical processes in a cell are called metabolism producers often obtain energy from the sun homeostasis refers to the ability to maintain a constant internal environm...

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• Grade Level: High School