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3095850
pH balance
Description
Mind Map on pH balance, created by Judy Thomas on 22/07/2015.
Mind Map by
Judy Thomas
, updated more than 1 year ago
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Created by
Judy Thomas
almost 9 years ago
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Resource summary
pH balance
pH↓ = ↑[H+]
Buffers?
Carbonic acid/bicarbonate buffer (ECF and RBCs) CO2 + H2O←H2CO3 ← H+ + HCO3-
Plus: increase respiration rate to remove CO2
Haemoglobin Buffer (RBCs) HbO2 + H+ → Hb-H+ + O2
Protein Buffer (ICF and plasma)
Kidneys (ammonia buffer) - more H+ excreted in urine (slow to respond!)
pH ↑ = ↓ [H+]
Buffers?
Carbonic acid/bicarbonate buffer (ECF and RBCs) CO2 + H2O → H2CO3 → H+ + HCO3-
Plus: decreased respiration to retain CO2
Haemoglobin buffer (RBCs) HbO2 + H+ ← Hb-H+ + O2
Protein buffer (ICF and plasma)
Kidneys - retain more H+ in blood or remove more HCO3- (slow!)
Acidosis? (pH blood < 7.35)
Respiratory Acidosis
Metabolic acidosis
Alkalosis (pH blood > 7.45)
Respiratory Alkalosis
Metabolic Alkalosis
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