Reversing Aging and Stem Cell Activation
Interactive Video
•
Ethan Morris
•
Biology, Science
•
9th - 12th Grade
•
Hard
02:27
10 questions
Show answers
1.
Multiple Choice
What was the main outcome of Wanda Ruth Lunsford's experiment with rats?
The young rat aged rapidly.
The old rat became younger in appearance and health.
Both rats died shortly after the experiment.
The rats developed new diseases.
2.
Multiple Choice
What did modern laboratories discover when they repeated Lunsford's experiment?
Stem cells in older organisms can be reactivated by proteins from younger ones.
The old organisms showed no change.
The experiment was a complete failure.
The young organisms aged faster.
3.
Multiple Choice
How do proteins from young organisms affect stem cells?
They have no effect on stem cells.
They reactivate dormant stem cells.
They turn stem cells off permanently.
They put stem cells to sleep.
4.
Multiple Choice
What happens to stem cells at age 25 according to the research?
They disappear completely.
They multiply rapidly.
They go to sleep and get turned off.
They become more active.
5.
Multiple Choice
What potential medical application is being explored with these proteins?
Preventing all diseases.
Curing all types of cancer.
Stimulating bone repair in the elderly.
Increasing lifespan to 150 years.
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