Unicellular life

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/unicellular-life

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 Unicellular life?Antonie van Leeuwenhoek in the 1670s
2. What is the domains of life?Bacteria, Archaea, and Eukarya (Protists)
3. What is the key principle of metabolism?Diverse pathways including phototrophy, chemotrophy, and heterotrophy
4. What are unicellular organisms?They are single-celled living things, like bacteria, archaea, and protists, that do all life processes inside one cell.
5. How do unicellular organisms get energy?They can use light (phototrophy), chemicals (chemotrophy), or eat other organic matter (heterotrophy) to power their bodies.

Chemotrophy: Metabolism that derives energy from chemical compounds.
Biogeochemical Cycles: The pathways by which chemical elements move through Earth's biotic and abiotic components.
Extremophiles: Microorganisms that thrive in physically or geochemically extreme conditions detrimental to most life.