Cellular Communications and Junctions

Practice Questions

AP Biology › Cellular Communications and Junctions

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1

Which type of ligand is water soluble, and thus unable to enter a cell?

2

Which of the following messengers mediate long-distance cell signaling in animal cells?

3

Which type of ligand is water soluble, and thus unable to enter a cell?

4

In second messenger signaling systems (i.e.as the cAMP system), where do second messenger molecules function in the cell?

5

What type of signaling uses the bloodstream to transport ligands to targets?

6

What type of signaling uses the bloodstream to transport ligands to targets?

7

Which is false regarding cell signaling?

8

Which is false regarding cell signaling?

9

Which type of cell-surface receptor, when bound by a ligand, begins a cycle where GDP is exchanged for GTP, causing the alpha subunit to separate from the beta and gamma subunits, and causing a cellular response?

10

Which type of cell-surface receptor, when bound by a ligand, begins a cycle where GDP is exchanged for GTP, causing the alpha subunit to separate from the beta and gamma subunits, and causing a cellular response?

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