+91-8076753736 support@wiredfaculty.com
logo
logo

Sponsor Area

Microbes In Human Welfare

Question
CBSEENBI12047426
Wired Faculty App

Which one of the following insecticides is of plant origin?

  • Ecdysone

  • Rotenone

  • Parathion

  • Malathion

Solution

B.

Rotenone

Rotenone is an odourless, colourless crystalline ketonic chemical compound used as a broad- spectrum insecticide, piscicide and pesticide. It occurs naturally in the seeds and stems of several plants, such as the jicama vine plant and the roots of several members of Fabaceae.

Ecdysone is a steroidal prohormone of the major insect molting hormone 20-hydroxyecdysone, which is secreted from the prothoracic glands. Insect molting hormones (ecdysone and its homologues) are generally called ecdysteroids.

Parathion is a highly toxic cholinesterase inhibitor that is used as an acaricide and as an insecticide.

Malathion is an insecticide in the chemical family known as organophosphates.

Some More Questions From Microbes in Human Welfare Chapter

Name the different vitamins which are produced by microorganisms.

The majority of baculoviruses used as biological control agents are in the genus?

Name the organism which provides statins used to lower cholesterol levels .

Name the first acid to be produced by fermentation.

How can a small amount of curd added to fresh milk convert it into curd ?

What is toddy ?

What are fermentors ?

What is primary sludge ?

What are flocs ?

What is relationship between BOD and organic matter in sewage ?

Mock Test Series

Mock Test Series

NCERT Sample Papers

Entrance Exams Preparation