Chlamydia

Chlamydia considers as the obligate parasites and sometimes refers as “Large viruses”. These are true bacteria and differ from the virus by many ways. Like bacteria, chlamydia also possesses both DNA and RNA. These multiply by binary fission, whereas viruses never do so. Chlamydia possesses bacterial cell type incorporated with peptidoglycan probably containing mumaric acid. …

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Difference Between Selective and Differential Media

The difference between selective and differential media is mainly due to the following factors: Intended use of the media: The purpose of both selective and differential media differs. A selective media only permits the development of particular organisms, while a differential media discerns one species of the organism from the other growing on the similar …

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MacConkey Agar Media

MacConkey agar media was first introduced by a scientist named Alfred Theodore MacConkey in the year 1890s. It is primarily exercised for the isolation and differentiation of the non-fastidious, gram-negative bacilli belonging to the family Enterobacteriaceae. Previously, it was first considered as “Solid differential media”. But now, it is practised as both liquid broth and …

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Pinocytosis

Pinocytosis is a kind of endocytic process. It can define as the cellular mechanism where the bilayer cell membrane invaginates to form a sac to uptake the extracellular fluids and solutes into the cytoplasm. Pinocytosis is a spontaneous endocytic process which occurs in almost all the cells. It is prevalent in eukaryotes. It also refers …

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Phagocytosis

Phagocytosis is a method of endocytosis. It can define as the cellular mechanism where the vesicles form by the invagination of the plasma membrane and cause internalization of the extracellular contents into the cell. Internalization is a process where a plasma membrane undergoes successive invagination to form membrane-bound vesicles that later detach from the cell …

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Exocytosis

Exocytosis is a means of membrane transportation that expels the intracellular material out of the cell. The transport of the substance is mediated by the vesicles that eliminate the cell debris and releases specific proteins, enzymes, hormones etc. outside the cell. It is a type of active transport mechanism that makes the use of ATP. …

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Cheese Production

Cheese production also refers to as “Caseiculture”. It makes the use of raw materials, bacterial culture along with rennet to process the end-product, i.e. cheese. Cheese comes in different varieties by the difference in ingredients and the processing of cheese. Cheesemaking can accomplish by using milk, either in a raw or pasteurized form. Depending upon …

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Mesophytes

Mesophytes represent the group of plants that can neither grow in the complete aquatic habitat nor the scarcity of water or dry conditions. These are the land plants that show features similar to both hydrophytes and xerophytes. These grow under favourable conditions, where the concentration of water and temperature are not too much high and …

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Adaptations in Hydrophytes

Adaptations in hydrophyte are of three kinds, ecological, physiological and anatomical. For the survival in an aquatic habitat, hydrophytes modify its structures like leaves, stem, roots and the physiology of the cells to adapt themselves according to the different aquatic habitats like freshwater, marine water, lakes, ponds etc. The adaptations in hydrophyte depend upon the …

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Hydrophytes

Hydrophytes represent a group of plants that are the part of the aquatic ecosystem, where most of the plants live in water or the soil saturated with water. The higher plants of hydrophytes have been evolved from the mesophytes. These sometimes refer as “Macrophytes” and are the common components of wetland. These plants live in …

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