Cell Safari Slides
BELL RINGER • 2 MINUTES Biology: Unit Launch
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Mystery of the Living World
What is the smallest thing in the universe that can be considered alive?
Quick Write: Write your prediction in 1–2 sentences.
Think: Is an atom alive? A drop of blood? A single cell? How small can "life" get?
Next: Video Investigation →
VIDEO EXPLORATION Amoeba Sisters: Intro to Cells
Slide 02 / 04
Embedded media
Video: Introduction to Cells: The Grand Cell Tour Runtime ~ 9 mins
Active Viewing Focus
01
Prokaryote vs. Eukaryote
Which cell group holds its DNA inside a distinct nucleus?
02
Cell Membrane Role
How does the membrane regulate what enters and exits?
03
The 3 Cell Theory Tenets
Where do all living cells originate?
Tip: Jot down 1 timestamp or organelle name that surprises you. Watch & Listen
KEY TAKEAWAYS Cell Classification Overview
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Two Master Categories of Life
Every single cell on Earth falls into one of these two foundational groups.
NO NUCLEUS
Prokaryotic Cells
🦠
- "Pro = No" (No true nucleus or organelles)
- DNA floats freely in cytoplasm
- Always unicellular (Bacteria & Archaea)
TRUE NUCLEUS
Eukaryotic Cells
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- "Eu = Do" (Do have a membrane-bound nucleus)
- Contains specialized organelles (mitochondria, etc.)
- Unicellular or multicellular (Plants, Animals, Fungi)
CELL THEORY:
1. All life has cells 2. Basic unit of structure 3. Come from existing cells
Memory Trick: "Pro = No" • "Eu = Do" Core Concept Check
CHECK FOR UNDERSTANDING Whole Group Check
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True or False Showdown
Show thumbs up for TRUE or thumbs down for FALSE.
A
"Bacteria are classified as eukaryotic organisms because they are alive."
Vote Now
B
"Both plant and animal cells possess a cell membrane and genetic material."
Vote Now
C
"According to Cell Theory, new cells can spontaneously form from air and water."
Vote Now
Next Lesson: Organelle Factory Roles (Mitochondria, Ribosomes, & ER) Wrap-Up Completed
