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Ch. 9 - MicroscopesWorksheetSee all chapters
All Chapters
Ch. 1 - Introduction to Microbiology
Ch. 2 - Disproving Spontaneous Generation
Ch. 3 - Chemical Principles of Microbiology
Ch. 4 - Water
Ch. 5 - Molecules of Microbiology
Ch. 6 - Cell Membrane & Transport
Ch. 7 - Prokaryotic Cell Structures & Functions
Ch. 8 - Eukaryotic Cell Structures & Functions
Ch. 9 - Microscopes
Ch. 10 - Dynamics of Microbial Growth
Ch. 11 - Controlling Microbial Growth
Ch. 12 - Microbial Metabolism
Ch. 13 - Photosynthesis
Ch. 15 - DNA Replication
Ch. 16 - Central Dogma & Gene Regulation
Ch. 17 - Microbial Genetics
Ch. 18 - Biotechnology
Ch. 21 - Viruses, Viroids, & Prions
Ch. 22 - Innate Immunity
Ch. 23 - Adaptive Immunity
Ch. 24 - Principles of Disease
Introduction to Microscopes
Magnification, Resolution, & Contrast
Introduction to Light Microscopy
Light Microscopy: Bright-Field Microscopes
Light Microscopes that Increase Contrast
Light Microscopes that Detect Fluorescence
Electron Microscopes
Reviewing the Different Types of Microscopes
Introduction to Staining
Simple Staining
Differential Staining
Other Types of Staining
Reviewing the Types of Staining
Gram Stain

Concept #1: Gram Stain

Practice: Which of the following answers lists the steps of gram-staining in the correct order?

Practice: Which of the following reagents is used to stain gram negative cells pink (or red) in the gram stain?

Practice: Which of the following statements is false?


Results from a gram stain show that these bacteria are:

Practice: A scientists has a sample with two different species of bacteria. The first species is Staphylococcus aureus, a gram-positive bacterium. The second species is Escherichia coli, a gram-negative bacterium. The scientist gram-stains his sample of bacteria. What colors will the two species of bacteria be after staining?