Classification

question 50

Multiple Choice

Classification. Match the following descriptions with the most appropriate group listed below.
-Based on fossils,oldest,still living organisms

• A)Bacteria
• B)Protists
• C)Plants
• D)Fungi
• E)Animals

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Definitions:

Electron Beam

A stream of electrons moved through a vacuum or air, utilized in various applications including welding and electron microscopy.

Integrins

Receptor proteins that bind to specific proteins in the extracellular matrix and to membrane proteins on adjacent cells; transmit signals into the cell from the extracellular matrix.

Middle Lamella

The middle lamella is the layer of pectin-rich material between the cell walls of adjacent plant cells, acting as a cementing agent to hold them together.

Fibronectins

Glycoproteins of the extracellular matrix that bind to integrins (receptor proteins in the plasma membrane).