Bradykinin

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/bradykinin

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?A nonapeptide, a peptide composed of nine amino acids
2. What is the systemic role?The principal effector peptide of the kallikrein-kinin system (KKS)
3. What is bradykinin and why is it important?Bradykinin is a tiny peptide made of nine amino acids that helps the body heal by causing inflammation and changes in blood vessels.
4. How does bradykinin help with blood flow?It binds to B2 receptors on blood vessel cells, causing them to release substances that widen arteries and lower blood pressure.

Kallikrein-Kinin System (KKS): A complex enzymatic cascade involved in regulating blood pressure, inflammation, and pain.
Endothelial Cells: The cells that line the interior surface of blood vessels and lymphatic vessels.
Angiotensin-Converting Enzyme (ACE): An enzyme that plays a role in blood pressure regulation and also breaks down bradykinin.