In multicellular organisms, the coordination of cellular activities relies on
A) cell receptors that detect transcription factors.
B) the availability of certain "key" nutrients as cells divide.
C) operons.
D) cell-to-cell signaling and signal transduction pathways.

Question

Quizplus · Accepted Answer

Multicellular organisms require communication between cells to coordinate activities. This communication occurs through cell-to-cell signaling, in which one cell releases a signal molecule that is detected by a neighboring cell. The receiving cell then initiates a signal transduction pathway, which typically involves a cascade of molecular events that ultimately lead to a specific response within the cell. This coordination ensures that cells are working together towards a common goal, such as development or responding to a stimulus. Cell receptors, key nutrients, and operons all play important roles in cellular function but are not solely responsible for coordinating cellular activities within multicellular organisms.

In Multicellular Organisms, the Coordination of Cellular Activities Relies on