BIO- 181 Quiz 4 GCU questions with answers

BIO- 181 Quiz 4 GCUWhat are the two mating types for yeast Saccharomyces cerevisiae - correct answer a and a What is a signal transduction pathway? - correct answer the binding of a mating factor at the cell surface initiates a series of steps and induces changes in the cells that lead to cell fusion what are local regulators? - correct answer messenger molecules that travel only short distances what do local regulators bind to? - correct answer receptors on target cells what is paracrine signaling? - correct answer accomplished with secretion of chemical regulators that have local effects on neighboring cells (kinda like localized hormones) what does paracrine signaling involve? - correct answer involves secreting cells acting on nearby target cells by discharging a local regulator into the extracellular fluid what is synaptic signaling? - correct answer a neuron releases neurotransmitters into a synapse to stimulate an adjacent neuron to fire or a muscle to contract.