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Level A1 – BeginnerCEFR A1
1 min
42 words
- Scientists study cancer cells.
- Some cells have extra chromosomes.
- These are called polyploid cells.
- Polyploid cells make many proteins.
- More proteins cause cell stress.
- Stressed cells move more in tissue.
- They can also eat nearby cells.
- Stopping stress makes them move less.
Difficult words
- scientist — a person who studies nature and experimentsScientists
- cancer — a disease when cells grow out of control
- chromosome — a structure in cells that holds geneschromosomes
- polyploid — a cell with extra sets of chromosomes
- protein — a molecule in cells that builds and worksproteins
- stress — pressure or damage that harms cells
- tissue — a group of similar cells in the body
Tip: hover, focus or tap highlighted words in the article to see quick definitions while you read or listen.
Discussion questions
- Would you like to be a scientist?
- Have you seen a picture of cells before?
- Do you think stress is bad for cells?
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