Which one of the following pairs is not correctly matched ?
Vitamin B6 – Loss of appetite
Vitamin B1 – Beri-beri
Vitamin B2 – Pellagra
Vitamin B12 – Pernicious annemia
The Correct Option is C
Solution and Explanation
Vitamin B2, also known as riboflavin, is not associated with pellagra. Pellagra is primarily caused by a deficiency of niacin (Vitamin B3). The correct association for Vitamin B2 is riboflavin deficiency, which can lead to symptoms such as sore throat, redness and swelling of the lining of the mouth and throat, cracks or sores on the outsides of the lips (cheilosis), and at the corners of the mouth (angular stomatitis). So, the Correct option is (C): Vitamin B2 – Pellagra
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Soil as Reservoir of Essential Elements
- Soil is firstly formed due to the slow breakdown and weathering of rocks.
- The clay and the humus part structure colloidal particles in the soil. These colloids hold a lot of charges on their surface and also have a large surface area that assists in the interaction with mineral elements.
- It is also the area of decomposition, a huge number of microbes in the soil decompose the organic remains (leftover) of plant parts or dead animals and release the minerals bound in organic matter.
- Soil can sustain a regular supply of minerals due to the activity of decomposers.
- Nitrogen-fixing bacteria are also found in the soil changing or transforming the atmospheric nitrogen into usable forms to be utilized by the plants.
- Mineral nutrients are withdrawn from the soil at a much faster rate than it gets replenished naturally. Hence, often there is a deficiency of core minerals in the soil.
- The deficiency of crucial minerals affects crop production, which is replenished through artificial fertilisers.
- Macro-nutrients like N, P, K, S, etc. and micro-nutrients like Cu, Zn, Fe, Mn, etc. are ingredients of fertilizers and are used in crop fields based on their requirement.