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pinocytosis

Pinocytosis- Definition, Steps, Types, Examples (Vs. Phagocytosis)

Pinocytosis Definition Pino, which means “to drink” and cytosis which means “related to the cell” are the two terms that make up the phrase ‘Pinocytosis’. This is an endocytosis which involves the passage of minute particles floating in extracellular fluid via cell membrane pores. It is a general method of internalizing fluid and dissolved nutrients …

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peroxisomes

Peroxisomes- Definition, Structure, Functions And Diagram

Peroxisomes Definition A range of metabolic processes including various elements of energy metabolism use oxidative enzymes found in peroxisomes, which are tiny, membrane-enclosed cellular organelles. These are regarded as a significant subset of microbodies that are present in both plant and animal cells. After having already been characterized, they were recognized as organelles by Belgian …

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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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