Concept explainers
Videos
What is the advantage of using Petri plates rather than test tubes in
To analyze:
The advantage of Petri dishes over test tubes in microbiology.
Introduction:
Microbiology is a discipline of studying microscopic organisms like protozoa, fungi, archaea, viruses, and bacteria for different aspects. The field of study has many applications in industry and research. Microbes that are beneficial for humans are cultured at a larger level for extracting their benefits whereas the ones harmful to humans are studied to combat their harmful effects.
Explanation of Solution
A petri dish is a transparent dish that is shallow and lidded. It is commonly used for culturing microorganisms like small mosses and bacteria.
A test tube or a culture tube is a finger-like tube commonly used in laboratories. It is open from the top and closed from the bottom. Test tubes can be made from plastics or glass. It is used for culturing and handling different types of live organisms such as plant cuttings, seedlings, bacteria, etc.
Petri dishes are beneficial over test tubes as they provide a larger surface area for culturing. Also, culturing and assaying of microbes can be done in different and easy ways. Colonies of microorganisms can be easily isolated and counted in a petri dish.
Petri dishes are beneficial over test tubes as they provide a larger surface area for microbial growth and allows a biologist to examine the culture easily.
Want to see more full solutions like this?
Chapter 3 Solutions
Laboratory Experiments in Microbiology (11th Edition)
- Selection of Traits What adaptations do scavengers have for locating and feeding on prey? What adaptations do predators have for capturing and consuming prey?arrow_forwardCompetition Between Species What natural processes limit populations from growing too large? What are some resources organisms can compete over in their natural habitat?arrow_forwardSpecies Interactions Explain how predators, prey and scavengers interact. Explain whether predators and scavengers are necessary or beneficial for an ecosystem.arrow_forward
- magine that you are conducting research on fruit type and seed dispersal. You submitted a paper to a peer-reviewed journal that addresses the factors that impact fruit type and seed dispersal mechanisms in plants of Central America. The editor of the journal communicates that your paper may be published if you make ‘minor revisions’ to the document. Describe two characteristics that you would expect in seeds that are dispersed by the wind. Contrast this with what you would expect for seeds that are gathered, buried or eaten by animals, and explain why they are different. (Editor’s note: Providing this information in your discussion will help readers to consider the significance of the research).arrow_forwardWhat is the difference between Uniporters, Symporters and Antiporters? Which of these are examples of active transport?arrow_forwardWhat are coupled transporters?arrow_forward
- How do histamine and prostaglandins help in the mobilization of leukocytes to an injury site? What are chemotactic factors? How do they affect inflammation process?arrow_forwardCompare and contrast neutrophils and macrophages. Describe two ways they are different and two ways they are similar.arrow_forwardDescribe the effects of three cytokines (not involved in the initial inflammation response). What cells release them?arrow_forward
Principles Of Radiographic Imaging: An Art And A ...Health & NutritionISBN:9781337711067Author:Richard R. Carlton, Arlene M. Adler, Vesna BalacPublisher:Cengage Learning