Copper in Human Body

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What is the total amount of copper present in the human body?

150 mg
100 mg (correct)
50 mg
200 mg

Which of the following is NOT a copper-containing enzyme?

Lactase (correct)
Lysyl oxidase
Ceruloplasmin
Cytochrome c

What is the approximate percentage of dietary copper that is absorbed?

30%
10% (correct)
50%
20%

What is the name of the copper-containing protein found in the liver?

Hepatocuprein (B) Signup and view all the answers

What is the primary route of copper excretion?

Bile (C) Signup and view all the answers

Which enzyme is zinc-dependent and has antioxidant activity?

Extracellular superoxide dismutase (D) Signup and view all the answers

What is the function of ceruloplasmin?

To promote the oxidation of ferrous ion to ferric form (C) Signup and view all the answers

What is the role of zinc in insulin storage in the beta cells of the pancreas?

It stabilizes the hormone molecule (A) Signup and view all the answers

What is the name of the zinc-containing protein found in saliva that is important for taste sensation?

Gusten (B) Signup and view all the answers

What is a common manifestation of zinc deficiency?

Alopecia (B) Signup and view all the answers

What is the name of the recessive disorder characterized by defective zinc absorption and inflammation around the mouth, nose, and fingers?

Acrodermatitis enteropathica (A) Signup and view all the answers

What is the role of zinc in the formation of a plaque in Alzheimer's disease?

It binds with amyloid (B) Signup and view all the answers

What is the result of copper deficiency in regards to iron metabolism?

Impaired iron transport (D) Signup and view all the answers

What is the characteristic of anemia in copper deficiency?

Microcytic normochromic anemia (C) Signup and view all the answers

What is the role of copper in hemoglobin synthesis?

Synthesis of heme (A) Signup and view all the answers

What is the characteristic of Menke's kinky hair syndrome?

X-linked defect, affecting only male children (B) Signup and view all the answers

What is the effect of copper deficiency on elastin?

Abnormal cross-linking (B) Signup and view all the answers

What is the result of copper deficiency on the cardiovascular system?

Both A and B (D) Signup and view all the answers

What is the effect of copper deficiency on melanin formation?

Decreased melanin formation (C) Signup and view all the answers

What is the treatment for Menke's kinky hair syndrome?

Injections of copper salts (A) Signup and view all the answers

What is the effect of copper deficiency on brain function?

Decreased cognitive function (C) Signup and view all the answers

What is the characteristic of hair growth in copper deficiency?

Alternate white patches (C) Signup and view all the answers

Manganese is primarily excreted through which of the following?

Bile (A) Signup and view all the answers

Which protein is responsible for carrying manganese in the blood?

Transmanganin (A) Signup and view all the answers

What happens to manganese absorption in the presence of iron?

It decreases (B) Signup and view all the answers

Which of the following enzymes is NOT activated by manganese?

Lactate dehydrogenase (A) Signup and view all the answers

What is the consequence of manganese deficiency on bone and cartilage?

Impaired growth and skeletal deformities (D) Signup and view all the answers

Where is the majority of copper found in the body?

Liver, bone marrow, brain, kidney, heart, and hair (D) Signup and view all the answers