2. Group Members
1) Abdirizak Hassan Ali
2) Hamda Omer Ibraahim
3) Shukri Abdinasir Ahmed
4) Abdulkhadir Ali Barqadle
5) Adrun Abdullahi Mhyadin
6) Fa,iza Nor Abdi
7) Hafsa Nor Abdi
8) Abdirahman Salad Elmi
4. DEFINITION OF ZINC
• The total content of zinc in an
adult body is about 2 g.
• Prostate gland is very rich in Zn
(100mg/g).
• Zinc is mainly an intracellular
element.
5. BIOCHEMICAL FUNCTION
• Zn is an essential component of several
enzymes e.g. carbonic anhydrase, alcohol
dehydrogenase & etc.
• The storage and secretion of insulin from the
cells of pancreas require Zn.
• Zn is necessary to maintain the normal levels
of vitamin A in serum.
6. DIETRY REQUERMENT
• Zinc requirement for an adult is 10-15
mg/day.
• It is increased (by about 50%) in
pregnancy and lactation.
7. SOURSES
The sources can be found a Zn
include: meat, fish, eggs, milk,
beans, nuts and so on.
8. Serum Zn
The concentration of Zn in serum is about
100 mg/dl. Erythrocytes contain higher
content of Zn (1.5 mg/dl) which is found
in association with the enzyme carbonic
anhydrase.
9. Disease states
• Zinc deficiency is associated with growth
retardation, poor wound healing, anemia, loss of
appetite and loss of taste sensation.
• Zinc toxicity is often observed in welders due to
inhalation of zinc oxide fumes. The manifestations
of Zn toxicity include nausea, gastric ulcer,
pancreatitis, and excessive salivation.
