SCIENCE
CIRCULATORY SYSTEM
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Calcium carbonate
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Carbondioxide
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Sodium bicarbonate
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Ammonia
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Detailed explanation-1: -When any acidic substance enters the bloodstream, the bicarbonate ions neutralize the hydronium ions forming carbonic acid and water. Carbonic acid is already a component of the buffering system of blood. Thus hydronium ions are removed, preventing the pH of blood from becoming acidic.
Detailed explanation-2: -Problem 2: Bicarbonate as a biological buffer Bicarbonate is a crucial buffer in the body and is usually present in body fluids as sodium bicarbonate (sodium being the main positive ion in extracellular fluids).
Detailed explanation-3: -Human blood contains a buffer of carbonic acid (H2CO3) and bicarbonate anion (HCO−3) in order to maintain blood pH between 7.35 and 7.45, as a value higher than 7.8 or lower than 6.8 can lead to death.
Detailed explanation-4: -Sodium bicarbonate acts a weak buffer with that makes maintaining a pH range of 7.2-7.6. It is also used as a nutrient source.
Detailed explanation-5: -Bicarbonate is a substance called a base, which the body needs to help keep a normal acid-base (pH) balance. This balance prevents your body from becoming too acid, which can cause many health problems. The lungs and kidneys keep a normal blood pH by removing excess acid.