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Biological Importance Of Group 1a 2a Essay

1377 words - 6 pages

TABLE OF CONTENTS

1. IA (Alkaline Metals)
1.1. H………………………………………………………………………..2
1.2. Li………………………………………………………………………..2
1.3. Na………………………………………………………………………2
1.4. K………………………………………………………………………..3
1.5. Rb………………………………………………………………………3
1.6. Cs………………………………………………………………………3
1.7. Fr……………………………………………………………………….4
1. IIA (Alkaline Earth Metals)
2.8. Be………………………………………………………………………4
2.9. Mg………………………………………………………………………4
2.10. Ca………………………………………………………………………4
2.11. Sr……………………………………………………………………….4
2.12. Ba………………………………………………………………………5
2.13. Ra………………………………………………………………………5

1. Group IA
2.1. H
Hydrogen binds ...view middle of the document...

One recorded instance was the case of a girl who developed a condition known as Neuroleptic malignant syndrome, who was given an antipsychotic drug (a tranquilizing drug that induces a state of relative calm). She quickly developed the symptoms of NMS, and was quickly hospitalized. There, doctors began treating her for the disorder, and in the final stage of her treatment, lithium was administered to her to help stabilize her mental functions. Weeks later, she was released and was in good physical health, but retained her previous diagnosis of Bipolar Disorder (a mental disorder that encompasses periods of mania and depression interspersed by periods of normal behavior).

2.3. Na
Sodium and potassium occur in all known biological systems, generally functioning as electrolytes inside and outside cells. Sodium is an essential nutrient that regulates blood volume, blood pressure, osmotic equilibrium and pH; the minimum physiological requirement for sodium is 500 milligrams per day. Sodium chloride (also known as common salt) is the principal source of sodium in the diet, and is used as seasoning and preservative, such as for pickling and jerky; most of it comes from processed foods. The DRI for sodium is 1.5 grams per day, but most people in the United States consume more than 2.3 grams per day, the minimum amount that promotes hypertension; this in turn causes 7.6 million premature deaths worldwide.
Sodium and potassium are very common alkali metals. These elements are essential for the existence of all known life. They are found in the cytoplasm (organic fluid, mainly water) of all living cells, and they are critical to everyday cell operation and regulation. Sodium is the main electrolyte component of the animal and human body fluids. The physiological saline solution is a 0.9 % (mixed) aqueous solution of NaCl.
Also, a common sodium salt, sodium chloride (table salt), has been identified many times as a contributor to hypertension in humans. A double-blind, two-month study was conducted on a group of elderly adults by modestly cutting their salt intake, to find if cutting salt intake would lower blood pressure. Some in the group were given half the salt that others were given for the duration of the study. The findings indicated that those who were given only half the amount of salt experienced a drop in blood pressure of up to 7.2 mm Hg.

2.4. K
Potassium is the major cation (positive ion) inside animal cells, while sodium is the major cation outside animal cells. The concentration differences of these charged particles causes a difference in electric potential between the inside and outside of cells, known as the membrane potential. The balance between potassium and sodium is maintained by ion pumps in the cell membrane. All potassium ion channels are tetramers with several conserved secondary structural elements. The most recently resolved potassium ion channel is KirBac3.1, which gives a total of five potassium ion...

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