Cell Theory Exhibit Posters Station 1
The First Peek
Year: 1665
Robert Hooke
Using a primitive compound microscope, I looked at a thin slice of cork. I saw tiny, empty chambers that reminded me of the small rooms in a monastery.
Discovery Achievement
He was the first to use the term "CELLS".
Station 2
Tiny Monsters
Year: 1674
Anton van Leeuwenhoek
I crafted my own powerful lenses! When I looked at pond water and scrapings from teeth, I saw tiny living organisms swimming around!
Discovery Achievement
He discovered "Animalcules" (living cells).
Station 3
Plant Power
Year: 1838
Matthias Schleiden
As a botanist, I spent years studying every part of a plant under my microscope. From the roots to the petals, I found the same building blocks everywhere!
Discovery Achievement
Declared that ALL PLANTS are made of cells.
Station 4
Animal Kingdom
Year: 1839
Theodor Schwann
I studied animal tissues. After talking with my friend Schleiden, I realized that animals weren't so different from plants after all. We are all made of the same stuff!
Discovery Achievement
Declared that ALL ANIMALS are made of cells.
Station 5
The Life Cycle
Year: 1855
Rudolf Virchow
Where do cells come from? Some thought they just appeared from thin air (spontaneous generation). I proved that cells only come from other living cells through division.
Discovery Achievement
Stated that ALL CELLS come from pre-existing cells.
Station 6
The Cell Theory
The Final Tenets
1
All living things are made of one or more cells.
2
The cell is the basic unit of life (structure and function) in all living things.
3
All cells come from pre-existing cells through cell division.
These three points form the foundation of Modern Biology.
Cell Theory Discovery Worksheet Cell Theory Chronicles
Scientific Discovery Log & Assessment
Name:
Date:
Objective: Visit each of the 6 scientific stations. Record the key discoveries that led to our modern understanding of cells. Then, apply what you've learned to the Test Readiness section.
Part 1: The Timeline of Discovery
Scientist Year Key Discovery or Contribution Robert Hooke 1665 Anton van Leeuwenhoek 1674 Matthias Schleiden 1838 Theodor Schwann 1839 Rudolf Virchow 1855
Part 2: The Modern Cell Theory (Station 6)
1. All living things are made of...
2. The cell is the basic unit of...
3. All cells come from...
Part 3: Test Readiness Assessment
Circle the correct answer for each question.
1. Which scientist was the first to use the term "cells" after looking at cork under a microscope?
A. Rudolf Virchow
B. Robert Hooke
C. Theodor Schwann
D. Matthias Schleiden
2. Before the work of Rudolf Virchow, some people believed that living things could appear out of nowhere. What part of the cell theory did he contribute to disprove this?
A. Cells are only found in plants.
B. All living things are made of many cells.
C. All cells come from pre-existing cells.
D. The microscope is the basic unit of life.
3. A scientist finds a new organism in a deep ocean vent. Based on cell theory, which of the following MUST be true about this organism?
A. It is made of one or more cells.
B. It was created from non-living chemicals.
C. It does not have any cells.
D. It is a plant because it lives in water.
4. Which of the following correctly pairs a scientist with their contribution?
A. Schleiden — Discovered that animals are made of cells.
B. Schwann — Discovered that plants are made of cells.
C. Leeuwenhoek — Saw "animalcules" in pond water.
D. Hooke — Stated that cells come from other cells.
5. Which sequence shows the correct chronological order of these scientists' work?
A. Hooke → Leeuwenhoek → Schleiden/Schwann → Virchow
B. Virchow → Hooke → Schleiden/Schwann → Leeuwenhoek
C. Leeuwenhoek → Schleiden/Schwann → Hooke → Virchow
D. Hooke → Virchow → Leeuwenhoek → Schleiden/Schwann
Cell Theory Answer Key Teacher Answer Key
Cell Theory Chronicles Activity Guide
Teacher Resource
Setup Instructions
• Print 1 set of Exhibit Posters.
• Hang posters around the room (Stations 1-6).
• Provide each student with a Discovery Worksheet.
Suggested Pacing
• 2 mins: Introduction & Instructions
• 15 mins: Station Rotation (approx 2.5m/ea)
• 3 mins: Wrap-up & Test Prep Review
Part 1: The Timeline of Discovery
Scientist Discovery / Contribution Robert Hooke Observed cork; named the "cell". A. Leeuwenhoek Saw living "animalcules" in pond water. Matthias Schleiden All plants are made of cells. Theodor Schwann All animals are made of cells. Rudolf Virchow All cells come from pre-existing cells.
Part 2: The Three Tenets
1. All living things are made of one or more cells .
2. The cell is the basic unit of life (structure and function) .
3. All cells come from pre-existing cells .
Part 3: Test Readiness Answers
B (Hooke / Cork)
C (Pre-existing cells)
A (Made of cells)
C (Leeuwenhoek / Animalcules)
A (Correct chronological order)
Cell Case Exhibit Posters Confidential
#01
The Biotic Lineup
Case Subject: Identifying Living Matter
A. Oak Tree
B. Ocean Water
C. Coral Reef
CLUE FOR LOG:
Detectives must identify which of these "suspects" are made of cells. Remember: If it is alive or was once alive, it follows the first law of cell theory.
#02
The Code of Life
Case Subject: The Official Tenets
"All living things are made of one or more cells."
"The cell is the basic unit of structure and function in living things."
"All cells come from pre-existing cells."
Warning: Red Herrings
Some statements pretend to be part of the code but are NOT. Watch out for claims like "everything is made of cells" (rocks aren't!) or "all cells can move."
CLUE FOR LOG:
On your log, identify the statements that are NOT part of the official Cell Theory.
#03
Witness Records
Case Subject: The Early Pioneers
EXHIBIT A
Robert Hooke (1665)
Looked at cork. Saw empty chambers he called "cells".
EXHIBIT B
Leeuwenhoek (1674)
Looked at pond water. Saw living, moving organisms he called "animalcules".
CLUE FOR LOG:
Which witness was the first to name "cells"? Which witness saw them moving in pond water?
#04
The Lab Report
Case Subject: Schleiden, Schwann, & Virchow
SCHLEIDEN
"All plants are made of cells!"
SCHWANN
"All animals are made of cells!"
VIRCHOW
"Cells only come from other cells!"
"Before these lab reports, some people thought life could spontaneously start from nonliving things. These three scientists proved that life is built from pre-existing life."
CLUE FOR LOG:
Use these reports to match the scientist to their specific contribution to Cell Theory.
#05
The Nucleus Mystery
Case Subject: Prokaryotic vs Eukaryotic
PROKARYOTIC
No Nucleus
EUKARYOTIC
Has a Nucleus
CLUE FOR LOG:
What do they share in common? Both are ALIVE and both contain GENETIC MATERIAL (DNA).
#06
The Cell Count
Case Subject: Unicellular vs Multicellular
Unicellular
Example: Bacteria
Cell Case Discovery Log Official Cell Case Log
Case #2026-BIO | Lead Detective: _________________________
TOP SECRET
1
Case #01: The Biotic Lineup
Identify TWO suspects that are made of cells:
Oak Tree
Ocean Water
Coral Reef
Glass Bowl
Sunlight
2
Case #02: The Code
Identify TWO statements that are NOT part of the cell theory:
Everything is made of cells.
The cell is the basic unit of life.
All cells come from pre-existing cells.
All cells can move on their own.
3/4
Case #03/04: Lab Archives
Match the Scientist to the Discovery:
Named the "Cell" (Cork)
Saw "Animalcules" (Living)
Stated Animals are made of cells
5
Case #05: Nucleus Mystery
Compare the cells. Select TWO commonalities:
Both have a nucleus
Both have genetic material
Both are alive
Both have a cell wall
6
Case #06: The Cell Count Report
Subject: Celery Plant
Evidence: "More than one cell, each has a nucleus."
Classification terms:
Subject: Bacteria
Evidence: "Single-celled organism, no nucleus."
Classification terms:
Final Evidence Review
Reviewing Case Knowledge for the Topic Test
1. Fido the dog is multicellular and bacteria is unicellular. Which part of Cell Theory shows their relationship?
A. All organisms are composed of one or more cells.
B. All cells come from pre-existing cells by cell reproduction.
C. The cell is the basic unit of structure and function.
D. All cells have the ability to react to outside stimuli.
2. Michael sees a cell with a nucleus under a microscope. How should he classify it?
A. Prokaryotic
B. Eukaryotic
C. Periodic
D. Nucleotic
3. Which scientist is credited with contributing that all ANIMALS are made of cells?
A. Robert Hooke
B. Alfred Wegener
C. Theodore Schwann
D. Galileo Galilei
Bonus Case: The Energy File
Coral are classified as heterotrophic because they cannot —
A. Move from place to place
B. Make their own food
Cell Case Answer Key Lead Detective's Key
Cell Case Files | Facilitation & Answer Guide
MASTER COPY
Detective Briefing
This activity is specifically designed to mirror the provided Topic Test. Students should rotate every 2.5–3 minutes. Encourage them to look for "Red Herrings" (misconceptions) at Station 2.
Test Alignment
The questions on the log and final review directly assess the HOT SPOT, Multiple Choice, and Classification items from the unit assessment.
Case #01
Oak Tree, Coral Reef
Alignment: Test Q1 & Q6
Case #02
Everything is made of cells; All cells can move.
Alignment: Test Q2
Case #03/04: Lab Records
Hooke: Named "Cells"
Leeuwenhoek: Animalcules
Schwann: Animal Cells
Schleiden: Plant Cells
Virchow: Pre-existing
Case #05
Genetic Material, Both are Alive
Alignment: Test Q9
Case #06
Celery: Multi / Eukaryotic
Alignment: Test Q8 & Q12
Final Evidence Review Answers
Question 1: A
Question 2: B
Question 3: C
Question 4 (Bonus): B
Question 5: B
Prompt: "What is the dog made of?"
Prompt: "Is a rock biotic?"
Prompt: "Do all cells have DNA?"
Cell Case Simplified Posters 01
The Living Lineup
Detective, look at these specimens. According to Cell Theory, only living things are made of cells.
OAK TREE
OCEAN WATER
CORAL REEF
On your log, circle the TWO things made of cells.
02
The Rule Book
1
All living things are made of cells.
2
Cells are the basic unit of life.
3
All cells come from pre-existing cells.
Watch Out!
Some statements are LIES. (Example: "Rocks have cells" or "Cells grow from dirt").
03
The Pioneers
Robert Hooke
He looked at cork and was the first to use the name "CELLS".
Year: 1665
Leeuwenhoek
He saw tiny moving organisms in pond water and called them "animalcules".
Year: 1674
Record their names and what they found on your log!
04
The Final Proof
Schleiden: "All plants are cells."
Schwann: "All animals are cells."
Virchow: "Cells come from other cells."
Before these three, people thought life could "spontaneously" appear from non-living things!
05
The ID Badge
PROKARYOTIC
NO Nucleus
EUKARYOTIC
HAS a Nucleus
Clue: Both are ALIVE and both have GENETIC MATERIAL (DNA).
06
Energy Sources
AUTOTROPH
"I make my own food!"
Example: Trees, Vines, Plants
HETEROTROPH
"I have to eat food!"
Example: Animals, Humans, Sloths
Check the celery and the bacteria on your log!
Cell Case Student Log Simplified Detective Discovery Log
Case: Cell Theory Investigation
Name:
1
Station 1: Life?
Circle the TWO that have cells:
Oak Tree
Ocean Water
Coral Reef
2
Station 2: Not Theory?
Circle the TWO that are NOT true:
Everything is made of cells.
Cells are the basic unit of life.
All cells can move on their own.
3/4
Scientists: Who found what?
Named the Cell (Cork)
Living "Animalcules"
All Animals are cells
5
Classification
Both Prokaryotes & Eukaryotes share:
They both have a nucleus.
They both have genetic material.
They are both alive.
6
Energy
Celery Plant
"I make my own food!"
Term: _________________
A Sloth
"I eat plants!"
Term: _________________
Evidence Review (Test Prep)
Choose the BEST answer for each case file.
1
Fido the dog is made of many cells. Bacteria is made of one cell. Which part of Cell Theory describes this?
A. All cells can move.
B. All organisms are made of one or more cells.
C. Only animals have cells.
2
Which scientist used the name "CELLS" for the first time?
A. Rudolf Virchow
B. Robert Hooke
C. Matthias Schleiden
D. Alfred Wegener
3
Michael saw a cell with a nucleus. How should he classify it?
A. Prokaryotic
B. Eukaryotic
C. Unicellular
D. Biotic
4
Plants are autotrophs because they —
A. Move from place to place.
B. Make their own food.
C. Eat other organisms.
Case Closed
