What are metabolites made of?

Primary metabolites are synthesized by the cell because they are indispensable for their growth. Significant representatives are amino acids, alcohols, vitamins (B2 and B12), polyols, organic acids, as well as nucleotides (e.g. inosine-5'-monophosphate and guanosine-5'-monophosphate).

How does biotransformation help the environment?

Biotransformation can be used as a cleanup method for both contaminated soil and water. ... In situ technologies do not require excavation of the contaminated soils and so may be less expensive, create less dust, and cause less release of contaminants than ex situ techniques.

Where do Phase 1 reactions occur?

The enzymes involved in Phase I reactions are primarily located in the endoplasmic reticulum of the liver cell, they are called microsomal enzymes. Phase II metabolism involves the introduction of a hydrophilic endogenous species, such as glucuronic acid or sulfate, to the drug molecule.

What is biotransformation phase1?

Phase I biotransformation reactions introduce or expose functional groups on the drug with the goal of increasing the polarity of the compound. ... Typically, oxidation is the most common phase I reaction. The hepatic cytochrome P450 system is the most important of the phase I oxidation systems (Figure 1).

Where does amino acid conjugation occur?

In relation to xenobiotic carboxylic acids, amino acid conjugation involves enzymes located principally in the mitochondria of liver and kidney while conjugation of bile acids is extramitochondrial, involving enzymes located in the endoplasmic reticulum and peroxisomes (Reilly et al., 2007, Knights et al., 2007).

What is biotransformation in microbiology?

Biotransformation is a process by which organic compounds are transformed from one form to another to reduce the persistence and toxicity of the chemical compounds. This process is aided by major range of microorganisms and their products such as bacteria, fungi and enzymes.

What is enzyme biotransformation?

Biotransformation is the process through which the functional groups of organic compounds are modified by living cells to a chemically different product. ... Biotransformation enzymes help to produce “nature-like” biodegradable compounds, and are gaining importance in this aspect.

What is another name for biotransformation?

bi·o·trans·for·ma·tion

The conversion of molecules from one form to another within an organism, often associated with change in pharmacologic activity; refers especially to drugs and other xenobiotics. Synonym(s): biodegradation.

How is poison metabolized?

Poisons can be absorbed via the digestive tract, skin, lungs, eyes, mucous membranes (such as those of the nose or eye), mammary glands, and uterus, as well as from sites of injection. Toxic effects may be local, or the poison can be absorbed and spread by way of the bloodstream.

What is the difference between biotransformation and metabolism?

The key difference between biotransformation and metabolism is that biotransformation is a part of metabolism in which the biochemical transformation occurs in a particular drug or compound while metabolism refers to all biochemical reactions taking place in a living organism.

What is plant biotransformation?

The process of biotransformation includes chemical reactions catalyzed by entrapped enzymes of regioselectivity and stereospecificity in immobilized plant cells. By this methodology, production of highly significant secondary metabolites was enhanced in plant cells or organs.

What is the meaning of pharmacodynamic?

Pharmacodynamics is the study of a drug's molecular, biochemical, and physiologic effects or actions. It comes from the Greek words "pharmakon" meaning "drug" and "dynamikos" meaning "power."

What is the major site of drug metabolism?

Most drugs must pass through the liver, which is the primary site for drug metabolism. Once in the liver, enzymes convert prodrugs to active metabolites or convert active drugs to inactive forms. The liver's primary mechanism for metabolizing drugs is via a specific group of cytochrome P-450 enzymes.

What are the 2 phases of drug metabolism?

Drug metabolism reactions comprise of two phases: Phase I (functionalization) reactions such as oxidation, hydrolysis; and Phase II (conjugation) reactions such as glucuronidation, sulphate conjugation.

Where does cell metabolism take place?

Cell metabolism provides a reflection of the health status of the cell. The mitochondrion is the main powerhouse of the cell in which bioenergetic processes occur by the uptake of fuel sources such as glucose and fatty acids and converts them into energy in a series of enzymatic reactions [73,74].

Where does Phase 2 of drug metabolism occur?

Glucuronidation, the most common phase II reaction, is the only one that occurs in the liver microsomal enzyme system. Glucuronides are secreted in bile and eliminated in urine. Thus, conjugation makes most drugs more soluble and easily excreted by the kidneys.

What are the 3 phases of drug action?

Drug action usually occurs in three phases: Pharmaceutical phase. Pharmacokinetic phase. Pharmacodynamic phase.

What is biotransformation in the environment?

Biotransformation is the chemical modification (or modifications) made by an organism on a chemical compound, often associated with change (increase, decrease, or little change) in pharmacologic and toxicologic activity.

Where is Bioaugmentation used?

Bioaugmentation is commonly used in municipal wastewater treatment to restart activated sludge bioreactors. Most cultures available contain microbial cultures, already containing all necessary microorganisms (B.

What is biodegradation process?

Biodegradation is the action of microorganisms to decompose a substance into its constituent elements or new compounds. This is the key process by which biodegradable plastics are broken down in the environment.