Phylum Porifera

Phylum Porifera is placed in the kingdom Animalia , whose members are metazoans having a cellular organization. Porifera is a term, which merely refers as pore bearers that include “Poriferans” or pore bearing animals. There are approximately 5000 species in a phylum Porifera. Initially, they were thought to be in the Plantae kingdom, because of …

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Difference Between Succulents and Cacti

Difference between succulents and cacti is mainly due to the following factors like: Presence of areole: Areole is a specialized structure from which spines, flowers, or fruits develops. Its presence is the characteristic feature of all the cactuses, while unusual in succulents. Phenotypic traits: All the cactuses are only having the stem, whereas succulents possess …

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Gel Filtration Chromatography

Gel filtration chromatography is one of the chromatography methods that facilitate particles separation based on the molecular size. It also called size exclusion and gel permeation chromatography. The source of particle separation is achieved by employing a filtration technique via gel beads. The gel beads possess specific porosity that retains or exclude the components with …

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Macrophages

Macrophages can define as the specialized immune cells that primarily recognize the foreign particles, and the cell remainings to facilitate phagocytosis. It differentiates from the monocytes. Besides phagocytosis, macrophages also play a functional role in presenting foreign particles to the T cells and also performs activation of other immune cells by releasing cytokines. Macrophages perform …

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Lichens

Lichens are the complex organisms that show a mutualistic relationship between fungi and algae by possessing characteristics of both. These show polymorphism, as it exists in diversified forms (sometimes plant-like) with different colours, sizes, texture etc. Lichens are not plants, but sometimes these appear as tiny leafless branches or as flat leaf-like structures etc. In …

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T Cell

T cell or T lymphocyte is one of the immune cells that grow in the thymus gland. It performs a significant role in stimulating an immune response. T lymphocytes are different from the other immune cells by having a T-cell receptor on its cell surface. It originates from the stem cells of bone marrow as …

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Difference Between Photosystem I and Photosystem II

The difference between Photosystem I and Photosystem II is primarily due to the following factors: Active reaction centre: P700 is the active reaction centre of PS-I, while P680 is the active reaction centre of PS-II. Photon absorption: PS-I absorbs light of longer wavelengths (ranging between 725-1035 nm), while PS-II absorbs light of shorter wavelengths (<680 …

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