In __________________ signaling, a cell-surface-bound signal molecule binds to a receptor protein on an adjacent cell. During embryonic development, for example, such signaling method allows adjacent cells that are initially similar to become specialized to form different cell types.
A: endocrine
B: contact-dependent
C: paracrine
D: neuronal
A: endocrine
B: contact-dependent
C: paracrine
D: neuronal
举一反三
- In a typical communication between cells, the signaling cell produces a particular type of intracellular signal molecule that is detected by the target cell.
- Communication between cells is mediated by cell signaling molecules and ( ). A: Cell receptor B: Antibody C: Enzyme D: Electric signal
- There are two major participants in every cell communication activity. The one that is giving communication, and the one that receives communication. Some also communicate through direct and indirect contact, which is also called local and long-distance signaling. Which of the following is an example of long-distance signaling occurring in the body? A: paracrine signaling B: systematic signaling C: synaptic signaling D: hormonal signaling
- How a cell reacts to a signal depends on the set of intracellular signaling molecules each cell-surface receptor produces and how these molecules alter the activity of effector proteins, which have a direct effect on the behavior of the target cell.
- Protein kinase A itself is different in different cell types， which explains why the effects of cyclic AMP vary depending on the target cell. （ ）