Log in
Email
Password
Register
Menu
Free Stock Photos
Newest photos
Popular photos
Contribute
Submission guidelines
Photographer signup
Photographer login
About
About Freerange
Image license
API
Contact us
Support
Contact support
FAQ
Login
Login
Register
Search all
Photos
Illustrations
Match All
Match Photo ID
Newest
Popular
Select Category
Editorial and News
Animals & Insects
Architecture
Architectural Details
Arts & Music
Backgrounds & Textures
Business & Office
Cities and Modern Life
Illustrations
Interiors
Flowers and Plants
France
Food & Drink
Health and Fitness
Holidays & Occasions
Industry & Agriculture
Landscapes & Nature
Letters and Numbers
Objects
Other
Military
People
Signs & Symbols
Sky and Clouds
Space
Sports & Recreation
Technology
Travel and Vacation
Transportation
Vintage Photos
Sponsored images from iStock
View footage results
Click to save 15% sitewide with code
FREERANGE15
View More
112 free petri photos from Freerange
Filter results
Popular
Most Viewed
Newest Photos
All licenses
Freerange
CC0
Photos & Illustrations
Photos
Illustrations
Per Page
25
50
100
Female Medical Doctor Analyzing DNA strands
Female Medical Doctor Analyzing DNA strands
Microbiology
Microorganisms growing.
Campylobacteria bacteria
Campylobacter bacteria growing on an agar plate.
Microbiology
Bacteria growing on a petri plate.
Microbiology
Spread plate techniques.
Pseudomonas bacteria on agar plate
Pseudomonas from drinking water or swimming pool growing on an agar plate.
Green and red mold
Mold growing on a petri plate.
Microbiology
Bacteria growing on a petri plate.
Green mold on a petri plate
Mold growing on a petri plate.
Escherichia coli
A petri plate containing Escherichia coli.
Different color mold
Mold growing on a petri plate.
Bacteria
Rod and Cocci bacteria viewed under a microscopy at 1000x.
Staphylococcus aureus
Staphylococcus aureus growing on Baird Parker agar showing black colonies and clearing zones.
Listeria monocytogenes
Food safety pathogen Listeria monocytogenes isolated on agar from a food sample
Morphology of Geobacillus stearothermophilus
The colony morphology of Geobacillus stearothermophilus. A thermophile that causes food spoilage.
Yeast and mold
Yeast and mold growing on a petri dish.
Bacteria
Rod bacteria viewed under a microscopy at 1000x.
Agar plate showing E. coli
Food safety pathogen E. coli growing on an agar plate.
Measuring the zone of inhibition
Measuring the zone of inhibition on a perti plate.
Bacteria
E. coli growing on EMB agar.
Microbiology
Biological waste.
Bacteria growing on EMB agar
Zone of inhibition produced by Lingonberry extract on an EMB agar plate containing E. coli and a control.
Fungi
Different shaped colonies of bacteria, yeast and mold growing on agar plates from enviromental samples.
IVF - In Vitro Fertilization microscopic close-up
IVF - In Vitro Fertilization microscopic close-up
Bacteria growing on agar
Staphylococcus aureus growing on Baird Parker agar showing black colonies and clearing zones.
Find even more royalty free stock photos from the world's best photographers
View
of
5
Try your search on iStock: