Cell City – organelles & structure
What organelle is known as the “powerhouse” of the cell?
Mitochondria
What is the microbiome?
The collection of microorganisms that live on and inside the human body.
What are antibiotics used for?
To kill or slow the growth of harmful bacteria.
What tool do scientists use to view cells too small to see with the naked eye?
Microscope
What is the smallest unit of life?
Cell
Which organelle controls the cell’s activities and contains DNA?
Nucleus
Name one benefit that “good” bacteria provide in the human body.
Help with digestion, protect against harmful bacteria, or support immunity.
Why don’t antibiotics work on viruses?
Viruses aren’t made of cells, so antibiotics have nothing to target.
Which type of microscope uses light and lenses to magnify an image?
Light microscope
Arrange these from simplest to most complex: cell, organ, tissue, organ system, organism.
Cell → Tissue → Organ → Organ System → Organism
What is the difference between a plant and an animal cell’s outer structure?
Plant cells have a cell wall and membrane; animal cells only have a membrane.
Why do some scientists compare the microbiome to an ecosystem?
It includes many species that interact and depend on each other.
What does “antibiotic resistance” mean?
Some bacteria adapt and survive even when antibiotics are used.
Which microscope can show smaller details like ribosomes or viruses?
Electron microscope
Are humans considered multicellular or unicellular ?
Mulitcellular
A cell without a nucleus is called what?
Prokaryotic
What happens when antibiotics destroy too many bacteria in the gut?
The balance of good and bad bacteria is disrupted, possibly causing sickness.
How can overusing antibiotics cause resistance?
it kills weaker bacteria, allowing resistant ones to survive and reproduce.
Why can’t we see ribosomes with a light microscope?
They’re too small to be resolved with visible light.
How does cell specialization help multicellular organisms survive?
Each type of cell performs a specific job, allowing the organism to function efficiently.
Why does the shape of a cell relate to its function?
The shape helps the cell perform its specific role (e.g., nerve cells are long to send signals).
How might your diet change your microbiome?
Eating different foods feeds different microbes, changing which types grow and survive.
Describe one way scientists or doctors can help prevent antibiotic resistance.
Prescribe antibiotics only when necessary, complete doses, or develop new treatments.
Why is magnification important in studying cell structure and function?
It helps scientists observe organelles and understand how each part supports life.