28 Questions
What is the total amount of copper present in the human body?
100 mg
Which of the following is NOT a copper-containing enzyme?
Lactase
What is the approximate percentage of dietary copper that is absorbed?
10%
What is the name of the copper-containing protein found in the liver?
Hepatocuprein
What is the primary route of copper excretion?
Bile
Which enzyme is zinc-dependent and has antioxidant activity?
Extracellular superoxide dismutase
What is the function of ceruloplasmin?
To promote the oxidation of ferrous ion to ferric form
What is the role of zinc in insulin storage in the beta cells of the pancreas?
It stabilizes the hormone molecule
What is the name of the zinc-containing protein found in saliva that is important for taste sensation?
Gusten
What is a common manifestation of zinc deficiency?
Alopecia
What is the name of the recessive disorder characterized by defective zinc absorption and inflammation around the mouth, nose, and fingers?
Acrodermatitis enteropathica
What is the role of zinc in the formation of a plaque in Alzheimer's disease?
It binds with amyloid
What is the result of copper deficiency in regards to iron metabolism?
Impaired iron transport
What is the characteristic of anemia in copper deficiency?
Microcytic normochromic anemia
What is the role of copper in hemoglobin synthesis?
Synthesis of heme
What is the characteristic of Menke's kinky hair syndrome?
X-linked defect, affecting only male children
What is the effect of copper deficiency on elastin?
Abnormal cross-linking
What is the result of copper deficiency on the cardiovascular system?
Both A and B
What is the effect of copper deficiency on melanin formation?
Decreased melanin formation
What is the treatment for Menke's kinky hair syndrome?
Injections of copper salts
What is the effect of copper deficiency on brain function?
Decreased cognitive function
What is the characteristic of hair growth in copper deficiency?
Alternate white patches
Manganese is primarily excreted through which of the following?
Bile
Which protein is responsible for carrying manganese in the blood?
Transmanganin
What happens to manganese absorption in the presence of iron?
It decreases
Which of the following enzymes is NOT activated by manganese?
Lactate dehydrogenase
What is the consequence of manganese deficiency on bone and cartilage?
Impaired growth and skeletal deformities
Where is the majority of copper found in the body?
Liver, bone marrow, brain, kidney, heart, and hair
This quiz covers the distribution and functions of copper in the human body, including its presence in various organs and enzymes. Learn about the importance of copper in our bodily functions. Test your knowledge of copper-containing enzymes and proteins.
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