Question

Acid-Base Balance Worksheet What is the normal pH range of blood? HOND 7.35 to 7.45. Which three systems work to regulate pH? 1. Suffer 2.respitory 3. Klaneys A shift below the normal pH in the body is called: a) acidosis b) alkalosis A shift above the normal pH in the body is called: a) acidosis b) alkalosis What is the chemical symbol for carbonic acid? H2CO3 What is the chemical symbol for hydrogen ion? H+ mo What is the chemical symbol for bicarbonate? HCO3 Write the equation for acid-base balance: niton What enzyme catalyzes this reaction? Car bonic anhydrase If there are more products on the left, which way will the equation shift?mos o a) to the right to the left c) neither Rewrite the equation to reflect this. H2O+CO2 € H₂CO3kH+ + HCO3 If there are more products on the right, which way will the equation shift? a to the right b) to the left c) neither Rewrite the equation to reflect this. H20+002 → H2CO3 → H*+ HCO3 If H* increases, what happens to pH? a) increase decrease c) stays the same If the kidneys increase their excretion of Hf, what happens to reabsorption of Ht? a) increase decrease c) stays the same What will happen to pH? increase b) decrease c) stays the same If the kidneys increase the excretion of HCO3, what happens to reabsorption of HCO3? a) increase 6) decrease c) stays the same What will happen to pH? a) increase b) decrease c) stays the same What are the stimuli to change the rate of respiration? Page 1

Answer 1

-Blood is normally slightly basic,with a normal range about 7.35 to 7.40.

-There are 3 important mechanisms uses our body to regulate pH. 1)Chemical buffer 2)Respiratory system 3)urinary system,these 3 mechanisms work together to keep body pH with that range.

-Alkalosis Acid base balance occurs due to significant changes in the blood pH .Alkalosis refers to an excess of base in the blood that causes the pH to rise above 7.45.

-Chemical symbol of carbonic acid -H2CO3

-The hydrogen ion represented by the symbol H+

-Bicarbonate ion is a polyatomic ion represented by HCO3-

-In the human body, many chemical reactions in equilibrium.most important one is H2O+CO2$\leftrightarrow$H2CO3$\leftrightarrow$ H++HCO3-

-Carbonic anhydrases This enzyme maintains acid-base balance and helps to transport carbon dioxide and help to regulate pH and fluid balance.

- To the left

-H2O+CO2$\leftarrow$ H2CO3$\leftarrow$H++HCO3-

- (a) to the right

-H2O+CO2$\rightarrow$H2CO3$\rightarrow$H++HCO3-

-If H+ increases,decreases the pH.

-The kidney increases their excretion of H+,decreases to reabsorption of H+

-pH increases

-The kidney increases the excretion of HCO3-, decreases to the reabsorption of HCO3-.

-Decreases in cell pH.

-Chemical stimulis are carbon dioxide,hydrogen ions and oxygen levels are most important factors to regulate our respiration,Chemorecepters such as sensory receptersa that may detect CO2,H,and O2 levels in the blood.