Hydrogen sulfide

High school (ages 12+)
Science & Technology

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/hydrogen-sulfide

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. Who discovered Hydrogen sulfide?1777
2. What is the chemical formula?H2S
3. What is the discoverer?Carl Wilhelm Scheele
4. What does hydrogen sulfide smell like?It smells like rotten eggs, and you can smell it even when there is only a tiny amount.
5. Why is hydrogen sulfide dangerous?It can stop cells from using oxygen, which can hurt organs and can be deadly if you breathe too much.

Gasotransmitter: A gaseous molecule produced endogenously that acts as a signaling molecule in biological systems.
Sulfate-Reducing Microorganisms (SRMs): Bacteria that use sulfate as an electron acceptor in anaerobic respiration, producing sulfide.
Ischemia-Reperfusion Injury: Tissue damage caused when blood supply returns to tissue after a period of ischemia (lack of oxygen).
Cytochrome c Oxidase: A key enzyme in the electron transport chain, essential for cellular respiration.