Which of the Following Statements Best Explains How a Modern

question 30

Multiple Choice

Which of the following statements best explains how a modern transmission electron microscope (TEM) can achieve a resolution of about 2.0 nanometers, whereas a standard light microscope has a maximum resolution of about 200 nanometers?

• A) TEMs utilize much higher quality glass lenses than those found in light microscopes.
• B) Staining with atoms of heavy metal provides higher contrast that the colored dyes used in light microscopy.
• C) Specimens visualized by TEM are much thicker than those observed by light microscopy.
• D) The wavelengths of electron beams are much shorter than the wavelengths of visible light.

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Definitions:

Structural Therapy

A form of psychotherapy that focuses on adjusting and strengthening the family system to ensure healthy family interactions.

Identified Patient

The family member in family therapy who is identified as the primarily ill or dysfunctional member and typically the initial focus of therapeutic intervention.

Structural Therapy

A form of family therapy that seeks to identify and rectify patterns of interaction that cause dysfunction within a family.

Psychoanalysis

A therapeutic approach developed by Freud, focusing on uncovering and understanding the unconscious motivations that influence behavior.