Explanation

Vitamin A deficiency can cause Night Blindness, as well as other health problems such as:

• Dry skin and eyes
• Impaired immune function
• Poor wound healing
• Increased risk of respiratory and urinary tract infections

Explanation

Vitamin K is found in:

• Leafy green vegetables (like spinach, kale, and broccoli)
• Cruciferous vegetables (like cauliflower, cabbage, and Brussels sprouts)
• Fermented foods (like sauerkraut and kimchi)
• Some fruits (like blueberries, strawberries, and pineapple)

Explanation

Vitamin A is found in:

• Carrots (beta-carotene, a precursor to vitamin A)
• Cod-liver oil (rich in vitamin A)
• Oil (such as cod-liver oil, halibut-liver oil, and shark-liver oil)

Additionally, vitamin A is also found in other foods like:

• Sweet potatoes
• Dark leafy greens (like spinach and kale)
• Squash
• Fatty fish (like salmon and mackerel)
• Egg yolks
• Dairy products (like milk and cheese)

Explanation

Fruits and vegetables are rich in various vitamins, such as:

• Vitamin C (citrus fruits, strawberries, bell peppers)
• Vitamin A (sweet potatoes, carrots, dark leafy greens)
• Vitamin K (leafy greens, broccoli, cauliflower)
• Folate (dark leafy greens, citrus fruits, legumes)

Explanation

• Vitamin A (specifically, retinal) is necessary for the formation of rhodopsin, a light-sensitive pigment in the retina of the eye.
• Rhodopsin is responsible for black-and-white vision and is found in the rod cells of the retina.
• Vitamin A deficiency can lead to night blindness, a condition where people have difficulty seeing in low light environments.

Explanation

Retinal, a form of Vitamin A, plays a dual role:

• Hormone: Regulates gene transcription, cell differentiation, and embryonic development
• Visual pigment: Component of rhodopsin, responsible for low-light vision and color vision

Explanation

• Vitamin A poisoning, also known as hypervitaminosis A, can occur when an individual consumes excessive amounts of vitamin A. The liver of polar bears (Ursus maritimus) is particularly high in vitamin A, and eating it can lead to acute vitamin A poisoning.
• Polar bear liver can contain up to 30,000 IU of vitamin A per gram, which is significantly higher than the recommended daily intake. Consuming even small amounts of polar bear liver can lead to toxic levels of vitamin A in the body, causing symptoms such as headache, dizziness, nausea, and even death in severe cases.

Explanation

• Pantothenic acid, also known as vitamin B5, is a derivative of Coenzyme A (CoA).
• The main functions of CoA is the activation and transfer of acyl groups, which involves the reactive sulfhydryl group through the formation of thioester linkages with acyl groups.
• Retinol and Retinoic acid are associated with vitamin A.
• Pyridoxine is associated with vitamin B6.

Explanation

Ricket is a disease of bones

Osteomalacia is caused due to deficiency of  Vitamin D

Explanation

Vitamin B9, also called folate or folic acid, is one of 8 B vitamins. 

it is also known as pteroylglutamic acid.

it is used to cure some diseases like anemia

it is a water-soluble vitamin.

Additional information: