Final Review/Unit Zero

Front

What is the function of the Body Tube in a microscope?

Back

The Body Tube holds the eyepiece and the objective lenses at the correct distance from each other, allowing for proper magnification and focus.

Front

What is the estimated length of a typical cell if the field of view is 4mm?

Back

1.5mm

Front

In an experiment, what is the dependent variable?

Back

The dependent variable is the factor that is measured or observed in response to changes in the independent variable; in this case, it is the moth behavior/their reaction.

Front

How do you calculate total magnification in a microscope?

Back

Total magnification is calculated by multiplying the magnification of the ocular lens by the magnification of the objective lens. For example, if the ocular lens is 10X and the objective lens is 4X, the total magnification is 40X.

Front

What is an independent variable in an experiment?

Back

The independent variable is the factor that is changed or manipulated by the researcher to observe its effect on the dependent variable.

Front

What is the purpose of a control in an experiment?

Back

A control is used as a standard of comparison to ensure that the results of the experiment are due to the independent variable and not other factors.

Front

Define the term 'field of view' in microscopy.

Back

The field of view is the visible area that can be seen through the microscope at a given magnification.

Front

What is the role of the ocular lens in a microscope?

Back

The ocular lens, or eyepiece, is the lens through which the viewer looks to see the magnified image of the specimen.

Front

What does it mean if a variable is 'constant' in an experiment?

Back

A constant variable is a factor that remains unchanged throughout the experiment to ensure that the test results are valid.

Front

What is the significance of the lamp in a microscope?

Back

The lamp provides illumination to the specimen, allowing for better visibility and clarity of the image.