Sourav Bio 
Kingdom Animalia Phylum Chordata Class Actinopterygii Order Characiformes Family Characidae Genus Pristella Species P. maxillaris Niche Aquatic fish Length 1.6-1.9 in (3.2-5 cm) Lifespan 2-5 years Social Structure Schooling Conservation Status Not listed (common) Preferred Habitat Freshwater ponds and lakes in South America Average Spawn Size 350 Main Prey Species Worms, insects, small crustaceans Predators … Read more
Culture Media Examples Components/Comments Primary Purpose Bile esculin agar (BEA) Nutrient agar base with ferric citrate. Hydrolysis of esculin by group D streptococci imparts a brown color to medium; sodium deoxycholate inhibits many bacteria. Differential isolation and presumptive identification of group D streptococci and enterococci Bile esculin azide agar with vancomycin Contains azide to inhibit … Read more
What is Nitrate Reduction Test? Nitrate reduction test is used to differentiate Enterobacteriaceae based on their ability to produce nitrate reductase enzyme, which hydrolyzes nitrate (NO3–) to nitrite (NO2–), which may be further degraded to various nitrogen products such as nitrogen oxide, nitrous oxide, and ammonia (NH3), depending on the organism’s enzyme system and the … Read more
Test Name Casein Hydrolysis Test Detection Enzyme caseinase producing microorganisms Uses To show that some microorganisms can make enzymes outside of their cells that can break down the milk protein casein. Result A clear, transparent zone can be seen around the area where the colonies are growing, or sometimes under the area where the colonies … Read more
Test Name Deoxyribonuclease (DNase) Test Detection DNases enzyme Uses To find out if an organism can break down DNA and use it to get carbon and energy so it can grow.To distinguish Staphylococcus aureus from other Staphylococci. Result DNase Test Agar: After adding 1N HCl, a clear zone forms around the growth line, but the … Read more
The pancreas secretes an enzyme called lipase that aids in the digestion of fatty foods. High levels of lipase in the blood may indicate pancreatitis, a disorder characterised by the inflammation and enlargement of the pancreas. Other pancreatic difficulties, certain drugs, and diseases and disorders include kidney failure, cancer, and gallbladder and oesophagus troubles can … Read more
A lipid is a high-energy, low-molecular-weight molecule. After being taken in by the cell, they are processed via aerobic respiration to generate ATP (adenosine triphosphate), the energy currency of the cell (ATP). Other metabolic processes may also use the components to synthesise essential cellular protoplasm. However, degradation is necessary before bacteria can absorb them. Lipases … Read more
The purpose of the malonate test is to see if the organism can get all of its energy from malonate.
The oxidase enzyme is a key factor in distinguishing Staphylococcus from Micrococcus, and the Microdase Disk is a reagent-impregnated disc recommended for use in qualitative procedures.
The novobiocin (antibiotic) differentiation disc can be used in the Novobiocin Susceptibility Test to help make a preliminary distinction between Staphylococcus saprophyticus and other coagulase-negative staphylococci (CoNS) in clinical (urinary) specimens.
About Salmonella Typhi Salmonella enterica subspecies enterica serovar Typhi (Salmonella typhi) causes typhoid fever in humans. Typhoid fever is a systemic illness that causes fever. It is spread through faeces and food or water, mostly in the developing world. At least 16–20 million people get typhoid fever each year around the world, and about 600,000 … Read more
In some places, phycology is also called algology. It is the study of algae, which are part of the plant kingdom.
The Bacitracin susceptibility test is one of the antimicrobial disc tests used to distinguish between group A and other -hemolytic Streptococci.
Streptococcus pneumoniae can be distinguished from other viridans streptococci by showing that it is sensitive to optochin, dissolves in bile, reacts with a specific DNA probe, or has species-specific capsular polysaccharides.
The SXT (sulfamethoxazole-trimethoprim) susceptibility test tells the difference between group A and B streptococci and other hemolytic streptococci.
The MRS formulation was made by de Man, Rogosa, and Sharpe to replace a variable product (tomato juice) and give lactobacilli in general a good place to grow.
Some glands make chemicals that are made of organic molecules. Since these glands don’t have ducts like exocrine glands, they are called ductless glands or endocrine glands, and the chemicals they make are called hormones.
What is dna repair mechanism? DNA repair is a collection of processes by which a cell identifies and corrects damage to the DNA molecules that encode its genome. dna repair definition One or two genomic DNA sets are typically present in each cell. The DNA’s information may be used to quickly replace broken proteins and … Read more
DNA replication is a prerequisite for cell division in both prokaryotic and eukaryotic organisms. DNA replication is the biological process whereby two identical copies of DNA are synthesised from a single DNA molecule. DNA replication guarantees that each daughter cell inherits an identical set of genetic information from its parent cells. DNA polymerases are enzymes … Read more
Advertisements A ribonucleoprotein known as telomerase, terminal transferase adds a repeat sequence of telomeres to the 3′ end of chromosomes, the length of which varies depending on species. In most eukaryotic organisms, the chromosomal ends are capped by a repeating sequence known as a telomere. Telomeres prevent DNA damage and chromosomal fusion at the chromosome’s … Read more
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