Trace metals

Question 1

copper function

Answer 1

cofactor for enzymes used in iron use, collage synthesis and antioxidants
required for growth and development, bone maintenance, RBC formation

Question 2

amount of copper in the body

Answer 2

100mg in body mainly in skin, muscle, bone marrow, liver and brain

Question 3

copper absorption

Answer 3

actively absorbed from the stomach and duodenum

Question 4

copper excretion

Answer 4

excreted in GI tract, some in urine and skin

Question 5

daily copper requirement

Answer 5

1.3 mg/day

Question 6

iron function

Answer 6

haemoglobin synthesis, cytochrome activity, urea cycle activity, lipogenesis, cholesterogenesis

Question 7

iron in compounds

Answer 7

haemoglobin, myoglobin, cytochromes

Question 8

iron storage

Answer 8

soluble ferritin or insoluble aggregate haemosiderin

stored in the liver, bone marrow and muscle

Question 9

iron overload caused by

Answer 9

genetic, alcohol cirrhosis, chronic pancreatitis, excessive blood transfusion
can cause skin pigmentation, cirrhosis and pancreatic fibrosis

Question 10

causes of iron deficiency

Answer 10

bowel disease, cancer, osteoporosis, infections

Question 11

iron deficiency symptoms

Answer 11

iron deficiency anaemia

tired, shortness of breath 3

Question 12

function of zinc

Answer 12

lots of enzymes, activity of RNA and DNA polymerase, zinc finger proteins needed for gene expression
eg. alcohol dehydrogenase

Question 13

zinc requirement

Answer 13

8mg women, 11mg men