12 Questions
Which characteristic of intracellular communication refers to the binding strength of different receptor types for the ligand?
Affinity
What is the process through which a stimulus is converted into a response within a cell called?
Signal transduction
Which enzymes phosphorylate other proteins, leading to changes in their activity or conformation?
Protein kinases
Which molecule acts as a first messenger in cellular communication?
Insulin
What type of proteins can be affected by signaling through GTP?
Cytoskeletal proteins
Which hormone is NOT mentioned as an example of a first messenger?
Vitamin D
Which of the following is an example of a second messenger in intracellular signaling?
cAMP
Which subunit of a G protein can bind either GDP or GTP?
α subunit
Which type of G protein is inhibitory in nature?
Gi
Which molecule is produced when adenylate cyclase is activated by the Gs protein?
cAMP
Which protein kinase is activated by cAMP in intracellular signaling?
PKA
Which signaling pathway involves the generation of inositol triphosphate (IP3) and DAG?
Gq protein pathway
Test your knowledge on intracellular communication! Explore concepts such as specificity, affinity, and saturation in signaling pathways. Discover how signaling molecules bind to receptors and elicit different responses in various cell types. Challenge yourself with this quiz and enhance your understanding of intracellular communication.
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