EVERYDAY SCIENCE

Detailed explanation-1: -The optical microscope is a useful tool for observing cell culture and confirming that they are proceeding properly. An operator visually observes cultured cells using an optical microscope in order to evaluate their condition and determine whether to proceed to the next step in the culture process.

Detailed explanation-2: -A microscope is an instrument that can be used to observe small objects, even cells.

Detailed explanation-3: -Two types of electron microscopy-transmission and scanning-are widely used to study cells. In principle, transmission electron microscopy is similar to the observation of stained cells with the bright-field light microscope.

Detailed explanation-4: -Microscopes provide magnification that allows people to see individual cells and single-celled organisms such as bacteria and other microorganisms. Types of cells that can be viewed under a basic compound microscope include cork cells, plant cells and even human cells scraped from the inside of the cheek.

Detailed explanation-5: -As living cells are translucent, they must be stained to be visible in a traditional light microscope. Unfortunately, the process of staining cells generally kills them. With the invention of the phase-contrast microscopy it became possible to observe unstained living cells in detail.