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Biology

Biochemical Test of Escherichia coli

Biochemical Test of Escherichia coli (E. coli)

Biochemical Test of Escherichia coli (E. coli) Basic Characteristics Properties (E. coli) Capsule Capsulated Catalase Positive (+ve) Citrate Negative (-ve) Coagulase Negative (-ve) Flagella Flagellated Gas Positive (+ve) Gelatin Hydrolysis Negative (-ve) Gram Staining Negative (-ve) Growth in KCN Negative (-ve) H2S Negative (-ve) Hemolysis Negative (-ve) Indole Positive (+ve) Motility Motile MR (Methyl Red) …

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Classification Of Bacteria On The Basis Of Nutrition

Classification Of Bacteria On The Basis Of Nutrition

Classification Of Bacteria On The Basis Of Nutrition  All living creatures need nutrition since these ingredients are employed in biosynthesis and energy generation. Like all living cells, bacteria need food and energy to create proteins, maintain structural membranes, and power biochemical reactions. Sources of carbon, nitrogen, phosphorus, iron and a vast number of other chemicals …

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Trophic Level

Trophic Level: Definition, Food Chain, & Examples

Trophic Level Definition A collection of species in an ecosystem are classified according to their trophic level.  A trophic level defines a place in the food chain. Based on their eating habits, organisms are categorized into several food chains. The trophic level is a stage in the nutritive chain of food chains, which in some …

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Stratified Cuboidal Epithelium

Epithelial Tissue: Definition, Types, Functions, & Examples

Epithelial Tissue Definition One of the four kinds of tissue found in animals—the others being epithelial, muscular, connective, and nervous—epithelial tissue is made up of tightly clustered polyhedral cells that adhere strongly to one another to create cellular sheets that fill empty organs and coat the surface of the body. Epithelial tissue comprises cells arranged …

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Phytoplankton Vs Zooplankton

Phytoplankton Vs Zooplankton: Definition, 16 Differences, & Examples

Phytoplankton Vs Zooplankton: An Overview Phytoplankton Definition The free-floating microalgae known as phytoplankton play a significant role in the ecosystems of the ocean, sea, and freshwater bodies of water. The terms “phyto” and “plankton,” which both imply drifter in Greek, are combined to form the word “phytoplankton.” Since phytoplanktons get chlorophyll to produce their own …

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Biotic Factors

Biotic Factors: Definition, Types, & Examples

Biotic Factors Definition Ecosystem components include both biotic and abiotic elements. Abiotic factors include non-living substances such as radiation, sunshine, heat, water, soil, and humidity. These are the biotic factors that ultimately influence physical and chemical agents. The term “biotic factor” or “biotic components” refers to an ecosystem’s biological organisms. It is also to blame …

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Exotoxins Vs Endotoxins

Exotoxins Vs Endotoxins- Definition And 29 Major Differences

Differences Between Exotoxins Vs Endotoxins Toxins are small chemicals, peptides, or proteins created by living cells that, when they come into contact with or are ingested by tissues, can result in morphological changes or structural damage. Enzymes and toxins both contribute significantly to the pathogenicity of pathogenic bacteria. Toxins can promote invasiveness, harm cells, impair biological …

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Vacuoles Diagram

Vacuoles: Definition, Structure, Functions, & Diagram

Vacuoles Definition Vacuoles are membrane-bound organelles. All plant, fungal, animal, and bacterial cells, as well as a certain protist, include vacuoles. An enormous, liquid-filled vacuole is the most noticeable compartment in most plant cells. Three genera of filamentous sulfur bacteria, the Thioploca, Beggiatoa, and Thiomargarita, also include large vacuoles. However, the role and relevance of …

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Gluconeogenesis

Gluconeogenesis: Definition, Steps, Reactions, & Significance

Gluconeogenesis Definition However, glucose must be produced when the cell is utilizing the other carbon molecules. This process is called gluconeogenesis. The process of making glucose from non-sugar precursors is known as gluconeogenesis. The process of synthesizing glucose from substances that are not carbohydrates is known as gluconeogenesis, and it mostly takes place in the …

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Null Hypothesis vs Alternative Hypothesis

Null Hypothesis vs Alternative Hypothesis With 9 Differences

Null Hypothesis vs Alternative Hypothesis Null Hypothesis Definition The null hypothesis is a general declaration that there is no association between the phenomena under investigation or that there is no connection between the groups under investigation. Generally, a hypothesis is an assertion that hasn’t been sufficiently supported by the available data. Thus, the idea a …

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