WorksheetsCellular Communication
Total questions: 11
Worksheet time: 7mins
What do second messengers do?
transport a signal through the lipid bilayer
relay a signal from the outside to the inside of the cell
relay message from the inside of the mebrane throughout the cytoplasm
dampen the message
An example of DIRECT cell communication is:
White blood cells bumping into each other sharing antigen info
Neurons communicating across a synapse
Hormones traveling through the blood stream to target tissues
An example of endocrine cell communication is:
White blood cells bumping into each other sharing antigen info
Neurons communicating across a synapse
Hormones traveling through the blood stream to target tissues
What is being depicted in the image?
Amplification of the signal molecule
Enzymatic proteins inhibiting process of the signal transduction pathway
Kinase groups adding dimer groups to other enzymes
Diffusion of molecules within the cell due to the signaling molecule
Ligands are signaling molecules that bind to receptors. Which of the following statements is true of ligands?
All ligands are proteins.
Each ligand is only able to bind to one specific receptor
Ligands can bind to cell-surface receptors, but they cannot enter the cell
Ligands bond to receptor proteins and cause the protein to relay a message to intracellular proteins.
Which letter represents the cell surface receptor protein?
A
B
C
D
E
