Mode of Action of Antifungal Drugs

Mode of Action of Antifungal Drugs

Fungal cell membranes have a unique sterol, ergosterol, which replaces cholesterol found in mammalian cell membranes.  An antifungal agent is a drug that selectively eliminates fungal pathogens from a host with minimal toxicity to the host. 1. Polyene antibiotics The poleyenes possess a macrocyclic ring, one side of which has a several conjugated double bonds …

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Blood cells and its types with functions

Blood cells and its types with functions

Blood cells are the cells which are produced during hematopoiesis and found mainly in the blood. Blood is composed of the blood cells which accounts for 45% of the blood tissue by volume, with the remaining 55% of the volume composed of plasma, the liquid portion of the blood. There are three types of blood …

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Differences Between Mitosis and Meiosis

Differences Between Mitosis and Meiosis

Mitosis is a process of asexual reproduction in which the cell divides in two producing a replica, with an equal number of chromosomes in each resulting diploid cell. Meiosis is a type of cellular reproduction in which the number of chromosomes are reduced by half through the separation of homologous chromosomes, producing two haploid cells. …

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Differences between DNA and RNA

Differences between DNA and RNA

Here are 17 differences between DNA and RNA. S.N. DNA RNA 1. DNA stands for Deoxyribonucleic Acid. The sugar portion of DNA is 2-Deoxyribose. RNA stands for Ribonucleic Acid.  The sugar portion of RNA is Ribose. 2. The helix geometry of DNA is of B-Form (A or Z also present). The helix geometry of RNA …

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Techniques of Virus Cultivation

Inoculation into embryonated egg

Viruses are obligate intracellular parasites so they depend on host for their survival. They cannot be grown in non-living culture media or on agar plates alone, they must require living cells to support their replication. The primary purpose of virus cultivation is: To isolate and identify viruses in clinical samples. To do research on viral …

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Differences Between Cilia and Flagella

Differences Between Cilia and Flagella

Flagella are the complex filamentous cytoplasmic structure protruding through cell wall. These are unbranched, long, thread like structures, mostly composed of the protein flagellin, intricately embedded in the cell envelope. Cilia are slender, microscopic, hair-like structures or organelles that extend from the surface of nearly all mammalian cells (multiple or single). S.N. Characteristics Cilia Flagella …

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Flagella – Introduction, Types, Examples, Parts, Functions and Flagella Staining- Principle, Procedure and Interpretation

Parts of Flagella

Introduction of Flagella Flagella are the complex filamentous cytoplasmic structure protruding through cell wall. These are unbranched, long, thread like structures, mostly composed of the protein flagellin, intricately embedded in the cell envelope.  They are about 12-30 nm in diameter and 5-16 µm in length. They are responsible for the bacterial motility. Motility plays an important …

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