Spontaneous generation — definition?
Life arising from non-living matter.
Redi's experiment — purpose?
Disproved spontaneous generation of maggots.
Cell theory components — three?
All living things made of cells, cells smallest unit, cells come from other cells.
Hooke — contribution?
Coined the term "cells" after observing cork.
Leeuwenhoek — discovery?
First described microorganisms with a microscope.
Pasteur's experiment — key idea?
Disproved spontaneous generation of microorganisms.
Microscope — body tube function?
Holds ocular lens in proper alignment.
Magnification — low power?
40X (10X ocular × 4X objective).
Magnification — medium power?
100X (10X × 10X).
Magnification — high power?
400X (10X × 40X).
Cell staining — purpose?
Make cells and structures visible under a microscope.
Cell membrane — role?
Controls entry and exit of substances.
Nucleus — function?
Controls cell activities and contains DNA.
Chloroplasts — role?
Carry out photosynthesis to produce food.
Test your knowledge with 7 questions on Introduction to Cell Biology and Microscopy.
1. What was the effect of Redi's experiment on the theory of spontaneous generation?
2. In the chronological development of cell theory components, when was Schleiden and Schwann's conclusion that all organisms are made of cells established relative to Hooke's discovery of cells?
Review the complete course in the revision sheet for Introduction to Cell Biology and Microscopy.
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