Which activity might lead to damage of a microscope and specimen?

The diagram below shows how a coverslip should be lowered onto some single-celled organisms during the preparation of a wet mount.

Why is this a preferred procedure?

After switching from the high-power to the low-power objective lens of a compound light microscope, the area of the low-power field will appear

The table below shows the position of slides of the letter "e" on the stages of four microscopes. The image of the "e" as seen using each microscope is also shown.

Which letters correctly identify the compound microscopes most likely used to provide the information in the table?

A cell in the field of view of a compound light microscope is shown in the diagram below.

In which direction should the slide be moved to center the cell in the microscopic field?

Which sequence contains the correct order of steps for a student to follow to observe the nucleus of protozoa in a stained wet mount, using a compound light microscope?

Base your answer to the following question on the diagram of a compound light microscope below and on your knowledge of biology.

Which parts of this compound light microscope with clear lenses should be used to improve the quality of the image being observed in the high-power field of view?

A microscope with 10x and 40x objectives is used to scan a slide to locate a specimen. The largest field of vision would be provided by using the

The diagram below represents a hydra as viewed with a compound light microscope.

If the hydra moves toward the right of the slide preparation, which diagram best represents what will be observed through the microscope?

The size of the image of a cell being examined with a microscope is determined by the

Base your answer to the following question on the diagrams below and on your knowledge of biology.

Which microscope setup would allow a student to see the largest field?

The diagram at the right represents a strand of algae

viewed under the low-power objective of this

microscope. Under the high-power objective, how

would this same slide appear?

A specimen was viewed under the high-power objective of a compound light microscope. Its length was estimated to be 0.75 millimeter. What is the approximate length of the specimen in micrometers?

(HINT: K H D B D C M _ _ u)

The diagram below represents the letter "h" as seen in the low-power field of view of a compound light microscope.

Which diagram best represents the field of view if the slide is not moved and the objective is switched to high power?

Base your answer to the following question on the diagram below of a single-celled organism observed by a student using the low-power objective of a microscope.

How should the student move the slide on the stage to center the single-celled organism in the field?

Which part of a microscope should be used with the

low-power objective, but not with the high-power

objective?

Which part of a light microscope would most likely be damaged if the coarse adjustment is improperly used while a specimen is being observed under high power?

A student using a compound microscope measured the diameter of several red blood cells and found that the average cell length was 8 micrometers. What is the average length of a single red blood cell in millimeters?

A laboratory technique is illustrated in the diagram below.

The technique of lowering the cover slip at an angle is used to

Which laboratory procedure is represented in the diagram below?

A student observing a specimen using the low-power objective of a compound light microscope has difficulty viewing the image because the field of view is too dark. The student can correct the problem by

Two views of the same onion epidermal cells, as seen with a compound light microscope, are shown in the diagram below.

What was most likely done to change the view from A to B?

To locate a specimen on a prepared slide with a compound microscope, a student should begin with the low-power objective rather than the high-power objective because the