How Does a Phase-Contract Microscope Setup Make Transparent Objects More

question 50

Multiple Choice

How does a phase-contract microscope setup make transparent objects more visible?

• A)It uses brighter bulbs than conventional light microscopes.
• B)It generates a negative image so that the background is dark and the specimen is light.
• C)It generates stereo images that can be viewed only with polarized filters.
• D)It causes direct and refracted light rays to interfere with one another.
• E)It operates at a lower temperature to reduce random specimen movement.

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Definitions:

Epiphyseal Plate

A hyaline cartilage plate in the metaphysis at each end of a long bone, where growth in length occurs.

Hyaline Cartilage

A translucent, bluish-white type of cartilage present in the joints, respiratory tract, and embryonic skeleton, providing support and flexibility.

Proximal Epiphysis

The end part of a long bone closest to the body's trunk.

Perforating Canal

Canals that run perpendicular to the Haversian canals in bone, connecting the blood and nerve supply of the periosteum to that of the Haversian canal.