Cell City
Bio in the News
Name that Scientist
Human Body 101
Weird But True
100

This organelle is known as the "powerhouse of the cell."

What is the mitochondrion?

100

In 2021, scientists successfully edited human embryos using this gene-editing tool.

What is CRISPR?

100

He is known as the “Father of Genetics” and experimented with pea plants.

Who is Gregor Mendel?


100

The largest organ in the human body.

What is the skin?

100

This human body part is strong enough to dissolve metal like zinc.

What is stomach acid?

200

This structure controls what leaves and enters the cell.

What is the cell membrane?

200

In 2022, NASA confirmed that this planet may have an ocean beneath its icy crust, sparking interest in extraterrestrial life.

What is Europa?

200

She discovered the structure of DNA but wasn’t awarded the Nobel Prize with Watson & Crick.

What is Rosalind Franklin?

200

This blood type is known as the universal donor.

What is O negative?

200

This animal has blue blood because it uses copper instead of iron to carry oxygen.

What is octopus/horseshoe crab?

300

This organelle packages and ships proteins like a post office.

What Golgi Apparatus?

300

In 2023, researchers created lab-grown versions of this body part, potentially helping with transplants.

What is the heart?

300

He developed the theory of evolution by natural selection.

What is Charles Darwin?

300

The part of the brain responsible for balance and coordination.

What is the cerebellum?

300

This animal can regrow its entire body from just a small piece of itself.

What is a planarian flatworm/starfish?

400

This organelle is found only in plant cells and is responsible for photosynthesis.

What is the chloroplast?

400

In 2024, scientists discovered microplastics in this part of the human body for the first time.

What is the blood?

400

This scientist developed a system of binomial nomenclature to classify organisms.

What is Carl Linnaeus?

400

These structures filter blood in the kidneys.

What are nephrons?

400

These trees can “talk” to each other through underground fungal networks.

What are trees in a mycorrhizal network?

500

This network of protein filaments gives a cell its shape and helps it move.

What is the cytoskeleton?

500

In 2025, biologists reported that this large mammal population rebounded in Yellowstone thanks to rewilding efforts.

What are gray wolves?

500

He created the first safe and effective polio vaccine.

What is Jonas Salk?

500

This hormone regulates blood sugar.

What is insulin?

500

This creature’s heart can stop for up to 30 minutes while diving, then restart without damage.

What is a sperm whale/whales/seals?

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