Catechin

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/catechin

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 the chemical structure?Flavan-3-ol, a subclass of flavonoids and polyphenols
2. What is the primary biological role?Antioxidant defense in plants, protecting against oxidative stress
3. What are catechins and why are they important in plants?Catechins are tiny helpers in plants that act like superheroes, protecting them from stress such as UV light, pests, and heavy metals. They belong to a group called flavonoids and have a special three‑ring structure with many hydroxyl groups.
4. How do catechins help keep our bodies healthy?Catechins are powerful antioxidants that neutralize harmful free radicals in our bodies. This protection can help reduce the risk of heart disease, brain problems, and some cancers.

Secondary Metabolite: Organic compounds produced by plants that are not directly involved in normal growth, development, or reproduction.
Reactive Oxygen Species (ROS): Highly reactive molecules containing oxygen that can cause cellular damage, contributing to oxidative stress.
Bioavailability: The proportion of a nutrient or compound that is absorbed from the diet and used by the body.