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Order the G protein coupled receptor signalling mechanism in order of events:

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Wize University Biology Textbook > Cell Communication

Types of Cell Receptors [Internal Receptors, GPCRs, RTKs, Ion Channels]

7 Activities

Order the G protein coupled receptor signalling mechanism in order of events:
A.
G-protein goes into the cell to activate a response
B.
Ligand binds to the receptor on the extracellular side
C.
GDP is phosphorylated to GTP
D.
G-protein alpha dissociates/leaves the plasma membrane
E.
G-protein re-attaches to the receptor to reset the system
F.
G-protein GTP is dephosphorylated back to GDP
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More Types of Cell Receptors [Internal Receptors, GPCRs, RTKs, Ion Channels] Questions:
Order the G protein coupled receptor signalling mechanism in order of events:
Order the G protein coupled receptor signalling mechanism in order of events:
Order the G protein coupled receptor signalling mechanism in order of events:
Practice: Signal
Think about the GPCR pathway that was discussed in class. It went Signal molecule -> GPCR -> G protein -> adneylyl cyclase -> cAMP -> downstream effects. Which of the following was the secondary messenger?
what is true about cell membrane receptors?
Practice: G-Protein Coupled Receptors
Match the G-protein coupled receptor pathway component to the general signal transduction role.
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Order the G protein coupled receptor signalling mechanism in order of events:
Practice: Signal
Think about the GPCR pathway that was discussed in class. It went Signal molecule -> GPCR -> G protein -> adneylyl cyclase -> cAMP -> downstream effects. Which of the following was the secondary messenger?
A certain ligand is known to be able to bind to multiple cell surface receptors. However, once it binds to any one of its receptors, it requires a lot of energy to dissociate the ligand from the receptor. What can you say about this ligand?
Practice: G-Protein Coupled Receptors
Match the G-protein coupled receptor pathway component to the general signal transduction role.
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1. What type of receptor is this?
2. What is the ligand?
What type of molecules are membrane transporters (eg. pumps, channels, carriers)?
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Consider the following scenario for this 4 part question:
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Consider the following scenario for this 3 part question:
Receptor tyrosine kinases (RTKs) are abundant class of protein receptors in human cells. Which of the following would be true when comparing different RTKs from a single human sample?
They would contain only synonymous mutations
They would have the same amino acid sequence
There are multiple different types of G-protein coupled receptors (GPCRs) in the human body. Which of the following statements are correct regarding these proteins?
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Insulin is a hormone that acts as a signal to tell the cell to take up glucose from the blood. There is a protein associated with the cell membrane that sends a signal to the cell once it binds to insulin. What kind of membrane protein is this?