Cell Scientists
Who discovered and named cells while observing cork under a microscope in 1665?
Robert Hooke
What type of cell lacks a membrane-bound nucleus?
Prokaryotic cells
What is the main function of the cell membrane?
Controls what enters and exits the cell
What type of organisms can make their own food through photosynthesis?
Autotrophs
What type of cell lacks a membrane-bound nucleus?
Prokaryotic Cell
Which scientist is known for developing powerful microscopes and observing bacteria for the first time?
Anton van Leeuwenhoek
Which organelle is responsible for producing energy in the cell?
Mitochondria
Which statement is NOT part of cell theory?
A. All living things are made of cells
B. Cells are the basic unit of life
C. All cells are exactly the same size
D. Cells come from pre-existing cells
C. All cells are exactly the same size
What term describes organisms made up of only one cell?
A. Heterotroph
B. Multicellular
C. Autotroph
D. Unicellular
D. Unicellular
Who contributed the idea that "all cells come from pre-existing cells"?
Rudolf Virchow
Which scientist proposed that all plant tissues are composed of cells?
Matthias Schleiden
What is the jelly-like substance inside cells called?
Cytoplasm
Which is a characteristic of eukaryotic cells?
A. They are always unicellular
B. They have membrane-bound organelles
C. They are only found in plants
D. They lack a nucleus
B. They have membrane-bound organelles
What type of organisms must obtain food from other sources?
Heterotrophs
What is the jelly-like substance inside cells called?
Cytoplasm
Who contributed the idea that "all cells come from pre-existing cells"?
Rudolf Virchow
What is the control center of the cell that contains genetic material?
Nucleus
Which organelle contains chlorophyll and is found only in plant cells?
Chloroplast
What term describes organisms made up of many cells working together?
A. Prokaryotic
B. Multicellular
C. Autotrophic
D. Unicellular
B. Multicellular
What term describes organisms made up of only one cell?
A. Heterotroph
B. Multicellular
C. Autotroph
D. Unicellular
D. Unicellular
Which scientist discovered that all animal tissues are made of cells?
Which cell structure is found in BOTH prokaryotic and eukaryotic cells?
Cell membrane
Why is Cell Theory important to biology?
A. It describes how plants make food
B. It explains how microscopes work
C. It provides the foundation for understanding all life
D. It only applies to animal cells
C. It provides the foundation for understanding all life
What is the main difference between prokaryotic and eukaryotic cells?
A. Only prokaryotic cells need energy
B. Eukaryotic cells can't reproduce
C. Only eukaryotic cells have DNA
D. Prokaryotic cells lack a true nucleus
Prokaryotic cells lack a true nucleus
Which organelle contains chlorophyll and is found only in plant cells?
Chloroplast