Transport of CO2

Description

How CO2 is transported in humans by blood.
Thomas Marshall
Mind Map by Thomas Marshall, updated more than 1 year ago
Thomas Marshall
Created by Thomas Marshall over 8 years ago
45
3

Resource summary

Transport of CO2
  1. This comes from a respiring body cell
    1. 5% is dissolved in the blood plasma
      1. 10-20% is carried bound to haemoglobin called carbaminohaemoglobin
        1. 75-85% is as bicarbonate in cells and plasma.
          1. CO2+H2O
            1. Carbonic anhydrase enzyme
              1. Carbonic acid
                  1. HCO3- and H+
                      1. H+ ions transported by Hb as haemoglobinic acid. This, therefore, shows Hb as a blood buffer
                        1. HCO3- the reacts with NA +
                          1. Forms NaCO3
                            1. Na comes from the NaCl in the blood
                              1. Cl- then diffuses into the cells to compensate for the loss of bicarbonate ions. This is called chloride shift.
                          2. Reversible reaction
                        2. Reversible reaction
                      Show full summary Hide full summary

                      Similar

                      Carbohydrates
                      Julia Romanów
                      AS Biology Unit 1
                      lilli.atkin
                      AQA AS Biology Unit 2 DNA and Meiosis
                      elliedee
                      AQA AS Biology Unit 2 The Cell cycle
                      elliedee
                      AQA AS Biology Unit 2 The Variety of Life
                      elliedee
                      Function and Structure of DNA
                      Elena Cade
                      AQA Biology 12.1 cellular organisation
                      Charlotte Hewson
                      Biological Definitions
                      Yamminnnn
                      AQA Biology 11.2 mitosis
                      Charlotte Hewson
                      Lung Structure
                      Elena Cade
                      AQA Biology 11.1 replication of DNA
                      Charlotte Hewson