AP BIOLOGY

THE CELL

CELL COMMUNICATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Signaling cascades are carried out within cells during the process of cell communication. The purposes of these cascades is
A
to take a signal and keep the same number of responses as the signals that are received
B
to phosphorylate other proteins within the cell
C
to manufacture a lot of responses to the signal
D
to allow for cells to divide
Explanation: 

Detailed explanation-1: -Signal transduction is the process through which cells communicate with the external environment, interpret stimuli and respond to them. This mechanism is controlled by signaling cascades, which play the role of intracellular transmitter, being able to transmit biochemical information between cell membrane and nucleus.

Detailed explanation-2: -This allows them to both detect signals in the extracellular environment and cause changes inside the cell. This can look like turning on or off different proteins that lead to a signal transduction cascade. At the end of this cascade is the cellular response, where there is a change in cellular behavior.

Detailed explanation-3: -Cellular signaling allows cells to respond to their environment and communicate with other cells. Proteins located on the cell surface can receive signals from the surroundings and transmit information into the cell via a series of protein interactions and biochemical reactions that comprise a signaling pathway.

Detailed explanation-4: -Signaling molecules are often called ligands, a general term for molecules that bind specifically to other molecules (such as receptors). The message carried by a ligand is often relayed through a chain of chemical messengers inside the cell.

There is 1 question to complete.