Vitamin A

High school (ages 12+)
Human Body

Name:

Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/vitamin-a

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. What is vitamin A and why is it important for seeing in the dark?Vitamin A is a group of fat‑soluble nutrients that help our eyes work. It turns into a molecule called retinal that joins with opsin to make rhodopsin, the pigment that lets us see when it’s dim.
2. Where can we get vitamin A from foods?Vitamin A comes in two forms: preformed vitamin A (retinol) in animal foods like liver, fish, eggs, and dairy, and provitamin A carotenoids (beta‑carotene, alpha‑carotene, beta‑cryptoxanthin) in colorful fruits and veggies such as carrots, sweet potatoes, spinach, and mangoes.

Retinoids: A class of compounds including retinol, crucial for vision, immunity, and cell growth.
Provitamin A Carotenoids: Plant pigments that the body converts into Vitamin A, such as beta-carotene.
Phototransduction: The process by which light energy is converted into electrical signals in the eye.
Xerophthalmia: A serious eye disease caused by Vitamin A deficiency, potentially leading to blindness.