15 Questions
Which invention played a key role in the discovery of cells?
The microscope
What did Anton van Leeuwenhoek observe that led to the naming of cells?
Cork
What is the first principle of the Cell Theory?
All organisms are composed of one or more cells
What is the second principle of the Cell Theory?
Cells are the smallest units of life
What is the third principle of the Cell Theory?
All cells come from preexisting cells
What did Louis Pasteur's experiments show about the origin of cells?
New cells can arise from existing cells
What is an exception to the Cell Theory regarding skeletal muscle cells?
They contain multiple nuclei
Which of the following is a characteristic of aseptate fungi?
Hyphae divided into sections (cells)
What is a characteristic of viruses?
They require cells to reproduce
How do paramecium demonstrate characteristics of life?
They cluster around food particles
What is the function of chlorella's large chloroplast?
Allows organism to photosynthesize
What is a characteristic of light microscopes?
Inexpensive
What is the formula for calculating magnification?
M = I / A
What is the formula for calculating actual size?
A = I / M
What is a limitation of electron microscopes?
Specimens must be dead and fixed in plastic
Test your knowledge on the fascinating topic of Cell Theory and Microscopy. Learn about the discovery and support of this theory, consisting of three basic principles. Explore the invention of the light microscope and the influential work of Anton van Leeuwenhoek.
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