Prokaryotic And Eukaryotic Cells
Published on Nov 19, 2015
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PRESENTATION OUTLINE
What are live and active cultures?
Live and or active cultures refers to microorganisms found in foods such as yogurt. Yogurt contains a live culture called probiotics, which are live microorganisms which when administered in adequate amounts confer a health benefit.
Are live cultures always bacterial?
Live cultures are often bacterial, but not always. It is possible to have active cultures of beneficial yeasts, for example Saccharomyces boulardii.
All living organisms can be sorted into one or two groups depending on their cells. Those two groups being prokaryotes and eukaryotes.
What are prokaryotes?
Prokaryotes are organisms made up of cells that lack a cell nucleus or any membrane encased organelles.
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What are eukaryotes?
Eukaryotes are organisms made up of cells that posses a membrane bound nucleus as well as membrane bound organelles.
Photo by Pink Sherbet Photography
1. What bacterial structures make it possible to package and sell Bacillus thuringiensis (Dipel) and Bacillus subtilis (Kodiak) ?
Answer: Endospore. It is a resistant asexual spore that develops inside some bacteria cells. It's function is to ensure the survival of bacterium. It can last for a very long time in dry conditions and can even survive boiling water.
2. What are Bacillus thuringiensis (Dipel) used for?
Answer: Bacillus thuringiensis (Dipel): insecticide endospores are toxic to insects that ingest them. It's main purpose is to protect against insect larvae.
3. What is Bacillus subtilis (Kodiak) used for?
Answer: Bacillus subtilis (Kodiak)- Fungicide. It main purpose is to protect against disease pathogens.
What is Bacillus Thuringiensis (Dipel)?
It is a gram positive, natural occurring, soil borne bacteria that has been used since the 1950's for natural insect control.
Photo by Pulmonary Pathology
What is Bacillus subtilis (Kodiak)?
It is a gram positive bacterium, that is found naturally in soil. It contributes to nutrient cycling due to its ability to produce a wide variety of enzymes.
Photo by David J. Thomas
In closing Bacillus thuringiensis (Dipel) and Bacillus Subtilis (Kodiak) main purpose is to be used as a protectant.
Photo by Pulmonary Pathology
