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Week 1: Laboratory Instruments and Techniques Quiz

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Week 1: Laboratory Instruments and Techniques Quiz

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Questions and Answers

What is the primary function of a centrifuge in a laboratory?

To measure the mass of substances accurately

To measure the intensity of electromagnetic radiation

To separate components of a mixture based on density (correct)

To sterilize equipment and materials

Which microscopy technique utilizes an electron beam to achieve higher resolution imaging?

Electron microscopy (correct)

Optical microscopy

Colorimetry

Spectrophotometry

What is the primary function of an autoclave in a laboratory?

To analyze the color of substances

To separate components of a mixture

To measure the concentration of solutions

To sterilize materials and equipment using high-pressure steam (correct)

Which instrument is used to measure the mass of substances with high precision?

Analytical balance Signup and view all the answers

What is the primary function of a spectrophotometer in a laboratory?

To measure the intensity of electromagnetic radiation at different wavelengths Signup and view all the answers

Which microscopy technique utilizes visible light to image samples?

Optical microscopy Signup and view all the answers

What is the purpose of a Transmission Electron Microscope?

Sending an electron beam through a thin slice of the specimen Signup and view all the answers

Which method of extraction involves keeping the plant-drug in contact with the solvent in a stoppered container for a defined period?

Maceration Signup and view all the answers

What is the primary function of Tannins in plants?

Defending against mammalian herbivores Signup and view all the answers

Which type of chemical was one of the first antiseptics used to sterilize medical equipment?

Phenolic Signup and view all the answers

What is the most diverse and abundant natural remedy in terms of structure among Phytochemicals?

Terpenoids Signup and view all the answers

Which type of Electron Microscopy visualizes details on the surfaces of specimens?

Scanning Electron Microscope Signup and view all the answers