Vitamins & Minerals — Set 1
Biology · विटामिन और खनिज · Questions 1–10 of 70
Which vitamin is synthesized in the human body when exposed to sunlight?
Correct Answer: C. Vitamin D
Vitamin D is produced in the skin through the action of ultraviolet rays. It is essential for the absorption of calcium and phosphorus in the body. Sunlight is the most common natural source for this specific nutrient.
Deficiency of which mineral is the most common cause of Goitre?
Correct Answer: A. Iodine
Iodine is required by the thyroid gland to produce important hormones. A lack of iodine causes the thyroid to enlarge, resulting in a swelling in the neck. Salt is often fortified with iodine to prevent this nutritional disorder.
Which of the following is a water-soluble vitamin?
Correct Answer: C. Vitamin C
Vitamin C and all B-complex vitamins are classified as water-soluble. These vitamins are not stored in the body and must be consumed regularly. They are easily excreted through urine if taken in excess.
Which vitamin is also known as Retinol?
Correct Answer: D. Vitamin A
Retinol is the chemical name for Vitamin A, which is vital for good vision. It helps in the formation and maintenance of healthy skin and mucous membranes. Yellow and orange fruits are excellent sources of this vitamin.
Anemia is primarily caused by the deficiency of which mineral?
Correct Answer: A. Iron
Iron is a core component of hemoglobin, which carries oxygen in the blood. A deficiency leads to reduced oxygen transport, causing fatigue and weakness. Green leafy vegetables like spinach are rich in dietary iron.
Which vitamin helps in the clotting of blood after an injury?
Correct Answer: A. Vitamin K
Vitamin K is essential for the synthesis of proteins required for blood coagulation. Without it, even minor cuts could lead to excessive and dangerous bleeding. It is naturally produced by certain bacteria in the human intestine.
Scurvy is a disease caused by the deficiency of which vitamin?
Correct Answer: C. Vitamin C
Vitamin C deficiency leads to scurvy, characterized by bleeding gums and skin spots. This vitamin is crucial for the repair of tissues and production of collagen. Citrus fruits like lemons and oranges are the best sources.
Which of the following is the richest natural source of Vitamin C?
Correct Answer: D. Amla (Indian Gooseberry)
Amla contains a very high concentration of Vitamin C compared to other fruits. It remains effective even after being dried or cooked in traditional recipes. This fruit is widely used in Ayurvedic medicine for its nutritional value.
Which mineral is necessary for the formation and strength of bones and teeth?
Correct Answer: C. Calcium
Calcium is the most abundant mineral in the body and provides structural integrity. It also plays a key role in muscle contraction and nerve signaling. Dairy products like milk and cheese are primary sources of calcium.
Night blindness is caused by the lack of which nutrient in the diet?
Correct Answer: A. Vitamin A
Vitamin A is essential for the healthy functioning of the retina in the eye. Its deficiency makes it difficult for a person to see in low light. Carrots are famously associated with preventing this specific condition.