Cell Biology Study
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Questions and Answers

What is cell biology?

Branch of biology studying the structure and function of the cell, the basic unit of life.

Define a cell.

The basic structural, functional, and biological unit of all known organisms.

How has modern-day cell biology research impacted the study of human anatomy and physiology?

It looks at ways to culture and manipulate cells outside of a living body for further research.

What are some techniques commonly used in studying cell biology?

<p>Cell culture and fluorescence microscopy.</p> Signup and view all the answers

What does fluorescence microscopy use to label specific components of a cell?

<p>Fluorescent markers such as GFP.</p> Signup and view all the answers

What is the main principle behind phase-contrast microscopy?

<p>Uses the optical aspect of light to represent the solid, liquid, and gas phase changes as brightness differences.</p> Signup and view all the answers

How does confocal microscopy differ from traditional fluorescence microscopy?

<p>Combines fluorescence microscopy with imaging by focusing light and snap shooting instances to form a 3-D image.</p> Signup and view all the answers

What is the main technique used in transmission electron microscopy to visualize cellular components?

<p>Involves metal staining and the passing of electrons through the cells.</p> Signup and view all the answers

How does cell fractionation help in studying cells?

<p>Breaking up the cell using high temperature or sonification followed by centrifugation to separate the parts of the cell.</p> Signup and view all the answers

What is the key difference between finite cell lines and continuous cell lines?

<p>Finite cell lines have a limited number of divisions before senescence, while continuous cell lines can divide indefinitely.</p> Signup and view all the answers

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