Question

Arrange the following functions in a sequential order of-Potassium, Calcium, Iron and Copper respectively-
A. Needed for Iron metabolism
B. Needed for Nerve transmission
C. Carries oxygen to every cell of the body
D. Important for Healthy Teeth
Choose the correct answer from the options given below:

• A. B, D, C, A
• B. A, B, D, C
• C. B, A, D, C
• D. C, B, D, A

Hint:

Potassium for nerves, calcium for teeth, iron for oxygen, copper for iron metabolism.

Answer 1

The Correct Option is A

Step 1: Understanding the Question:
We must match the four minerals in the given order (Potassium, Calcium, Iron, Copper) with their functions A to D.

Step 2: Key Idea:
Potassium helps nerves send signals and keeps muscle action normal. Calcium builds strong bones and teeth. Iron is part of haemoglobin, which carries oxygen in the blood to every cell. Copper helps the body use iron (iron metabolism). So the matching is Potassium-B, Calcium-D, Iron-C, Copper-A.

Step 3: Check option (1).
The order B, D, C, A gives Potassium-B (nerve transmission), Calcium-D (healthy teeth), Iron-C (oxygen carrying) and Copper-A (iron metabolism). All four match. So option (1) is right.

Step 4: Check option (2).
The order A, B, D, C gives Potassium-A, which is wrong because iron metabolism is a copper job. So option (2) is wrong.

Step 5: Check option (3).
The order B, A, D, C gives Calcium-A and Iron-D, which are both wrong. So option (3) is wrong.

Step 6: Check option (4).
The order C, B, D, A gives Potassium-C (oxygen carrying), which is the job of iron. So option (4) is wrong.

Final Answer:
The correct sequence is B, D, C, A, option (1).