Cell Communication
Signaling molecules
What are ligands
period after DNA is duplicated
What is G2
chromosomes line up at spindle equator
What is metaphase
In a simple synapse, the location where neurotransmitter chemicals are received
What is a postsynaptic cell
Increases the efficiency of signal transduction
What are scaffolding proteins
period commonly followed by cytokinesis
What is mitosis
cytoplasm apportioned between the two daughter cells
What is cytokinesis
Sweating would describe this type of feedback
What is negative feedback
Includes cyclic AMP and Ca2+
What are second messengers?
period when DNA is duplicated
What is S
chromosomes condense and mitotic spindle begins to form
What is prophase
Childbirth would describe this type of feedback.
What is positive feedback
A membrane receptor that opens a channel once the signaling molecule changes the shape of the receptor
What are Ligand-Gated Ion Channels
event that forms two daughter cytoplasmic masses
What is cytokinesis
about 25 nm in diameter; form mitotic spindle
What are microtubules
The method in which neurotransmitters are released from axon terminals
What is exocytosis
A cell surface transmembrane receptor
What are G Protein-Coupled Receptors
period when interphase begins in a daughter cell
What is G1
in pairs in some eukaryotic cells; move to poles during spindle formation
What is centrioles
This type of activity would most likely be an immediate result of a growth factor binding to its receptor
protein kinase activity