Kidney brainstorm


To assist in understanding the functioning of the kidneys, place the main components of the blood into order of size, starting with the largest:

C    white cells
C    red cells
C   platelets

   plasma proteins, e.g. albumin, fibrinogen, antibodies,

   hormones, e.g. insulin, adrenalin, testosterone, oestrogen, progesterone
D   fatty acids & glycerol
D    amino acids (20 varieties)
drugs e.g. ethanol, ecstasy, heroin, aspirin, "steroids" etc, penicillin & other antibiotics
D    glucose
N    urea
   vitamins

   [mineral salts] ions e.g.
X   Na+ , Cl-
   HCO3-
   Ca2+

X    (water)

Mark the following categories of substances on the list above with the appropriate (?) code

N - nitrogenous excretory products
X - other substances possibly in excess
C - cells (or parts thereof)
D - digestion products

Why is oxygen not on the list?
not loose in plasma
Where is it in the list, effectively?
in red cells
Why is carbon dioxide not on the list?
changed into hydrogencarbonate ions
Where is it in the list, effectively?
in plasma
Why is haemoglobin not on the list?
not loose in plasma
Where is it in the list, effectively?
in red cells

Draw a line below plasma proteins.

In biochemical terms, most of the components below this have "small" molecules, whereas ones above have "large" molecules.

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