Problem 8 - 43 Years JEE ADVANCED (1978-2020) + JEE MAIN Chapterwise & Topicwise Solved Papers Chemistry

Question

Among the following vitamins the one whose deficiency causes rickets (bone deficiency) is [Main Online April 25, 2013] (a) Vitamin A (b) Vitamin B (c) Vitamin D (d) Vitamin \(\mathrm{C}\)

Step-by-Step Solution

Answer

The deficiency of Vitamin D causes rickets.

Step 1: Introduction to Rickets

Rickets is a condition that affects bone development in children, causing the bones to become soft and weak. This is usually due to a deficiency of certain vitamins or minerals.

Step 2: Identifying the Cause

Rickets is most commonly caused by a deficiency in Vitamin D. Vitamin D helps in the absorption of calcium and phosphorus from the diet, which are critical for healthy bone formation.

Step 3: Review Given Options

The problem provides four options: Vitamin A, Vitamin B, Vitamin D, and Vitamin C. We need to identify which vitamin's deficiency leads to rickets.

Step 4: Matching Deficiency to Vitamin

From the information known about rickets, it is clear that the deficiency of Vitamin D is the primary cause of this condition, as it plays a crucial role in bone health and development.

Step 5: Conclusion

Based on this analysis, among the given options, Vitamin D is the vitamin whose deficiency can lead to rickets.

Key Concepts

Rickets

Rickets is a disorder that primarily affects children and results from the softening and weakening of bones. This condition occurs when children's bones do not receive enough essential nutrients to harden properly. Rickets has a most profound effect during times of rapid growth, such as the growth spurts seen in young children. When children are not getting sufficient Vitamin D, calcium, or phosphate, they are at risk of developing this condition.
Rickets can lead to several complications, such as bone deformities and growth disturbances. Common signs include pain in the bones, delayed growth, muscle weakness, and skeletal anomalies like bowed legs or thickened wrists and ankles. It's important to diagnose and treat rickets early to prevent these long-lasting bone issues.

Bone health

Bone health is crucial for overall well-being, playing a key role in supporting our bodies and allowing us to move. Bones also serve as a reservoir for calcium and other minerals. To maintain bone health, a combination of nutrients, physical activity, and lifestyle choices is essential.
Vitamin D is a significant nutrient in bone health. It aids in the absorption of calcium and phosphorus from food, which are critical for bone strength. Without adequate Vitamin D, the body cannot absorb sufficient calcium, leading to brittle or soft bones.

• Diet: Including foods rich in calcium and Vitamin D, like dairy products, and fatty fish, supports bone health.
• Sun Exposure: The body can synthesize Vitamin D with adequate sunlight exposure, making it another vital factor in maintaining bone health.
• Exercise: Physical activity strengthens bones and improves balance and coordination, reducing the risk of falls that could lead to fractures.

Vitamin deficiency

Vitamin deficiency occurs when the body does not get enough vitamins necessary for proper function. Lack of vital vitamins can lead to a variety of health issues, one of which is compromised bone health.
In the case of Vitamin D deficiency, the impact is particularly significant on the bones, where it can lead to conditions like rickets in children and osteomalacia in adults. Vitamin D deficiency can result from:

• Inadequate dietary intake and lack of fortified foods.
• Limited sun exposure, especially in regions with long winters or in individuals who spend a lot of time indoors.
• Medical conditions that affect vitamin absorption, such as celiac disease or Crohn’s disease.

Understanding the signs of vitamin deficiency and addressing them early can prevent long-term health problems and maintain bone and overall health. Regular check-ups and blood tests can help in early identification and treatment of these deficiencies.