Irreversible inhibitors, such as the organophosphorus and organomercury compounds, cyanide, carbon monoxide and hydrogen sulphide, combine with the enzyme to form a covalent bond. 

TLS Online TPP Program

#Id: 8103

#XL - T Zoology

Phosphatidylglycerol, cardiolipin, and phosphatidylinositols all are anionic phospholipids

TLS Online TPP Program

#Id: 10797

#XL - R Botany

Secondary metabolites arere divided into Three major groups

Terpenes, 

Phenolics, and

Nitrogen-containing compounds

Terpenes

Basic structural elements of terpenes are sometimes called isoprene units

Ten-carbon terpenes, which contain two C5 units, are called monoterpenes; 15-carbon terpenes (three C5 units) are sesquiterpenes; and 20-carbon terpenes (four C5 units) are diterpenes. Larger terpenes include triterpenes (30 carbons), tetraterpenes (40 carbons), and polyterpenoids ([C5]n carbons, where n > 8).

TLS Online TPP Program

#Id: 8042

#XL - Q Biochemistry

A system to unambiguously describe the configurations of molecules with more than one asymmetric center was devised in 1956 by Robert Cahn, Christopher Ingold, and Vladimir Prelog. In the Cahn–Ingold– Prelog or RS system

TLS Online TPP Program

#Id: 9530

#XL - R Botany

Many insect pest species also transmit viruses. The sapsucking species are effective virus vectors, delivering virus particles directly into the vascular tissue, thereby permitting their rapid dissemination throughout the plant

TLS Online TPP Program

#Id: 4699

#XL - T Zoology

Altruism in social insects(haplodiploidy) Workers, rarely reproduce themselves but instead help one reproductive female (the queen) to raise offspring, a phenomenon called eusociality.