Q. What non-metal is a key component of DNA and RNA?
-
A.
Carbon
-
B.
Hydrogen
-
C.
Phosphorus
-
D.
Oxygen
Solution
Phosphorus is an essential element in the backbone of DNA and RNA molecules.
Correct Answer:
C
— Phosphorus
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Q. What non-metal is essential for the formation of hemoglobin and is found in red blood cells?
-
A.
Iron
-
B.
Carbon
-
C.
Nitrogen
-
D.
Oxygen
Solution
Iron is essential for hemoglobin formation, which is crucial for oxygen transport in red blood cells.
Correct Answer:
A
— Iron
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Q. What non-metal is essential for the synthesis of thyroid hormones?
-
A.
Iodine
-
B.
Oxygen
-
C.
Carbon
-
D.
Nitrogen
Solution
Iodine is a crucial element for the production of thyroid hormones, which regulate metabolism.
Correct Answer:
A
— Iodine
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Q. Which metal is commonly used in the treatment of rheumatoid arthritis due to its anti-inflammatory properties?
-
A.
Gold
-
B.
Iron
-
C.
Aluminum
-
D.
Copper
Solution
Gold compounds, such as gold sodium thiomalate, are used in the treatment of rheumatoid arthritis.
Correct Answer:
A
— Gold
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Q. Which metal is known for its role in hemoglobin and oxygen transport in the blood?
-
A.
Zinc
-
B.
Copper
-
C.
Iron
-
D.
Lead
Solution
Iron is a key component of hemoglobin, allowing red blood cells to transport oxygen.
Correct Answer:
C
— Iron
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Q. Which metal is often associated with neurotoxicity and can cause cognitive deficits?
-
A.
Mercury
-
B.
Calcium
-
C.
Magnesium
-
D.
Zinc
Solution
Mercury exposure is linked to neurotoxicity and can lead to cognitive impairments.
Correct Answer:
A
— Mercury
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Q. Which metal is often used in dental amalgams for fillings?
-
A.
Silver
-
B.
Gold
-
C.
Copper
-
D.
Tin
Solution
Silver is a primary component of dental amalgams, providing strength and durability to fillings.
Correct Answer:
A
— Silver
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Q. Which metal is used in the treatment of osteoporosis due to its role in bone health?
-
A.
Calcium
-
B.
Iron
-
C.
Lead
-
D.
Aluminum
Solution
Calcium is vital for maintaining bone density and is commonly used in osteoporosis treatment.
Correct Answer:
A
— Calcium
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Q. Which non-metal is commonly used in the treatment of water to kill bacteria?
-
A.
Chlorine
-
B.
Sulfur
-
C.
Phosphorus
-
D.
Selenium
Solution
Chlorine is widely used as a disinfectant in water treatment to eliminate harmful bacteria.
Correct Answer:
A
— Chlorine
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Q. Which non-metal is known for its antioxidant properties and is important for immune function?
-
A.
Selenium
-
B.
Nitrogen
-
C.
Oxygen
-
D.
Fluorine
Solution
Selenium acts as an antioxidant and plays a crucial role in immune system function.
Correct Answer:
A
— Selenium
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