Electron Microscopes

question 23

Multiple Choice

Electron microscopes:

• A)that are scanning have better resolution than those that are transmission
• B)are much more expensive and take up more space than light microscopes
• C)can use the same preparations of specimens that have been prepared for viewing with a light microscope
• D)have a resolving power approximately 10 times better than the best light microscope

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Definitions:

Habituation

Learned behavior in which the response to a stimulus weakens with repeated presentations.

Calcium Ion Influx

A cellular process involving the movement of calcium ions (Ca2+) into a cell, leading to various physiological responses.

Dopamine

A chemical messenger that plays a key role in regulating motivation, reward, and the control of movement.

Metabotropic Receptors

A type of receptor that, when activated, initiates a cascade of metabolic reactions within the cell to indirectly alter its electrical state, often involving G-proteins and second messengers.