AP BIOLOGY

Detailed explanation-1: -Cells typically communicate using chemical signals. These chemical signals, which are proteins or other molecules produced by a sending cell, are often secreted from the cell and released into the extracellular space. There, they can float – like messages in a bottle – over to neighboring cells.

Detailed explanation-2: -Answer and Explanation: The type of tissue that allows for rapid communication between various parts of the body is D) nervous. A key component of nervous tissues is the neuron. A neuron transmits signals around the body using action potentials, which are changes in the membrane potential of the neuron itself.

Detailed explanation-3: -The transfer of information from one cell to another. Cells signal each other by direct contact with each other or by the release of a substance from one cell that is taken up by another cell. Cell-to-cell signaling is important for cells to grow and work normally.

Detailed explanation-4: -Gap junctions are involved in cellular communication-not just in epithelial tissue, but in other tissue types as well. Gap junctions are specialized connections that form a narrow pore between adjacent cells. These pores permit small molecules and ions to move from one cell to another.

Detailed explanation-5: -Cells communicate by sending and receiving signals. Signals may come from the environment, or they may come from other cells. In order to trigger a response, these signals must be transmitted across the cell membrane. Sometimes the signal itself can cross the membrane.