Tag: Class 12 biology

Worldwide, it is estimated that one billion people have inadequate levels of vitamin D, with deficiency affecting all age groups. In children, a lack of this vital nutrient can lead to a specific disease characterized by softened and weakened bones, known as rickets. This is a key topic covered in Class 12 biology and health education.

According to the National Institutes of Health, vitamin B12 deficiency can lead to a condition known as megaloblastic anemia, where the body produces abnormally large, immature red blood cells. This article explores the specific disease caused by vitamin B12 deficiency, explaining its mechanism for Class 12 students.

According to the Centers for Disease Control and Prevention (CDC), Vitamin K Deficiency Bleeding (VKDB) is a preventable condition that affects newborns who do not receive a vitamin K shot at birth. This deficiency impairs blood clotting, and in Class 12 biology, the disease most commonly associated with a lack of vitamin K is uncontrolled bleeding or hemorrhage.