Match List - I with List - II and select the correct answer from the codes given below: List - I List - II A. Vitamin B12 1. Magnesium B. Haemogl

Question

Match List - I with List - II and select the correct answer from the codes given below:
1. A - 2, B - 4, C - 1, D - 3
2. A - 2, B - 1, C - 3, D - 4
3. A - 4, B - 1, C - 2, D - 3
4. A - 3, B - 4, C - 2, D - 1

Answer 1

Correct Answer - Option 1 : A - 2, B - 4, C - 1, D - 3

The correct answer is A - 2, B - 4, C - 1, D - 3.

List - I	List - II
Vitamin B12	Cobalt
Hemoglobin	Iron
Chlorophyll	Magnesium
Brass	Copper

• Vitamin B12
  • Vitamin B-12 is important for the brain function and the synthesis of red blood cells.".
  • The deficiency of vitamin B-12 can lead to neurological difficulties and anemia.
  • People over the age of 14 should consume more than 2.4 micrograms (mcg) of vitamin B-12 daily.
  • Vitamin B-12 is naturally available in meats, but people who do not eat meat, such as vegans, can obtain vitamin B-12 in supplement form.
• Hemoglobin
  •  Hemoglobin (Hb) is a protein found in red blood cells that carries oxygen in your body and gives blood its red color.
  • Hemoglobin levels vary from person to person.
  • Men usually have higher levels than women.
  • A hemoglobin “cut-off” level is set for blood donation to ensure that your hemoglobin will not drop below normal after you have donated blood.
  • Normal ranges for hemoglobin differ between ethnic populations, and males and females, and are also affected by age, especially in women.
  • Individuals with hemoglobin levels below the normal range are, by definition, anemic.
• Chlorophyll
  • Chlorophyll is the molecule that absorbs sunlight and uses its energy to synthesize carbohydrates from CO2 and water.
  • This process is known as photosynthesis and is the basis for sustaining the life processes of all plants.
  • Since animals and humans obtain their food supply by eating plants, photosynthesis can be said to be the source of our life also.
  • Chlorophyll is the molecule that traps this 'most elusive of all powers' - and is called a photoreceptor.
  • It is found in the chloroplasts of green plants and is what makes green plants, green.
  • The basic structure of a chlorophyll molecule is a porphyrin ring, coordinated to a central atom.
  • This is very similar in structure to the heme group found in hemoglobin, except that in heme the central atom is iron, whereas in chlorophyll it is magnesium.
• Brass
  • Brass is an alloy of copper and zinc and is of historical and enduring importance because of its hardness and workability.
  • The earliest brass was called calamine brass and which dates to Neolithic times.
  • It was probably made by the reduction of mixtures of zinc ores and copper ores.
  • In ancient documents, such as the Bible, the term brass is often used to denote bronze, the alloy of copper with tin.