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Deamination
Process of removal of an amino group from an amino acid molecule; the process gets rid of
excess amino acids in the body; as the body is not able to store them; the amino group enters
the ornithine cycle; where it is combined with carbon (IV) oxide to form urea; which is
excreted in urine through the kidney;
Heat production;
Many metabolic activities take place in the liver; releasing heat energy; that is distributed by
the blood to other parts of the body; this helps in thermoregulation; Storage of vitamins and
mineral salts; Vitamins A, B, D, E and K; are stored in the liver; worn-out red blood cells, are
broken down to yield iron; which is stored in the liver in form of ferritin; this is used later in
case of shortage;
Formation of red blood cells;
Occurs in the liver of the foetus; the liver also breaks down old/exhausted red blood cells;
leading to formation of more in the bone marrow to replace the worn-out cells; to enhance
oxygen and carbon (IV) oxide distribution;
Regulation of blood sugar level;
Liver cells convert excess glucose into glycogen and fats under the influence of insulin
hormone; the stored glycogen is however converted back to glucose; when glucose levels are
low; by the liver cells; under the influence of glucagon hormone;
Regulation of plasma proteins;
Plasma proteins such as prothrombin and fibrinogen are manufactured in the liver using the
amino acids found in the liver; they play a major role in blood clotting; that prevents excessive
blood loss and infection at the injured area; other plasma proteins produced by the liver such
as serum and albumen; contribute to the
maintenance of osmotic pressure in the body; non-essential amino acids are also synthesized by
the liver; for use by the body;
Storage of blood;
The liver is highly vascularised; hence it is capable of holding a large volume of blood when the
blood vessels dilate during hot conditions; when the temperatures are low, the blood vessels
constrict under the influence of the endocrine and nervous systems; hence less blood is stored
in the liver; this contributes to thermoregulation;
Detoxification;
This is the process where harmful compounds such as drugs and poisons; are converted to less
toxic compounds in the liver; toxicity is caused by medication, drugs and microorganisms; the
toxic compounds are later excreted in urine; detoxification prevents the accumulation of toxins
in body cells; which could lead to death or malfunctioning of the body cells;
Kavungya answered the question on May 13, 2021 at 13:05
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