Which of the Following Best Represents the Actions of Photoautotrophs

question 18

Multiple Choice

Which of the following best represents the actions of photoautotrophs?

• A) produce oxygen and use carbon dioxide
• B) produce, and use, both oxygen and carbon dioxide
• C) produce thermal energy to be used by other organisms
• D) convert chemical energy to solar energy

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Definitions:

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).

9 + 2 Arrangement

A common structure observed in eukaryotic flagella and cilia, consisting of nine double microtubule pairs surrounding two central microtubules.