NY Regents History of Cells & Microscopes

Front

What scientific equipment is used to separate samples according to their relative densities?

Back

Ultracentrifuge

Front

When viewed under a microscope, how does the letter 'e' appear compared to when viewed without it?

Back

Upside down

Front

What device separates cell parts according to their densities by spinning cellular materials very fast?

Back

Ultracentrifuge

Front

Why do you lay down a slide cover at a 45 degree angle on a wet mount?

Back

To let air out and prevent air bubbles.

Front

Which part of the microscope is used for fine focus when in high power?

Back

Fine focus knob (often labeled 'D').

Front

What is the function of an electron microscope?

Back

To view very small objects at high magnification using electron beams.

Front

What is the purpose of a dissecting microscope?

Back

To view larger specimens in 3D at lower magnifications.

Front

What is the principle behind using mirrors in a microscope?

Back

To direct light towards the specimen for better visibility.

Front

What happens to the orientation of an object when viewed through a microscope?

Back

It appears inverted.

Front

What is a wet mount?

Back

A method of preparing a slide by placing a specimen in a drop of liquid.