Podcast
Questions and Answers
What is the main function of connexons in gap junctions?
What is the main function of connexons in gap junctions?
- Transport large molecules between cells
- Facilitate indirect communication through nanotubes
- Allow direct communication between adjacent cells (correct)
- Act as chemical messengers
Which type of intercellular communication involves gap junctions?
Which type of intercellular communication involves gap junctions?
- Indirect communication
- Mechanosignals
- Direct communication (correct)
- Chemical messengers
What is a characteristic feature of the pore size in gap junctions?
What is a characteristic feature of the pore size in gap junctions?
- Very small (correct)
- Very large
- Variable depending on cell type
- Non-existent
Which of the following molecules can pass through gap junctions?
Which of the following molecules can pass through gap junctions?
In intercellular communication, what do connexons permit between cells?
In intercellular communication, what do connexons permit between cells?
What type of intercellular communication involves the transfer of nucleic acids and small organelles between cells?
What type of intercellular communication involves the transfer of nucleic acids and small organelles between cells?
Which intercellular communication type can be acutely regulated by phosphorylation and dephosphorylation?
Which intercellular communication type can be acutely regulated by phosphorylation and dephosphorylation?
In which type of muscle, such as cardiac muscle, are intercalated disks found, allowing for rapid and coordinated propagation of action potentials?
In which type of muscle, such as cardiac muscle, are intercalated disks found, allowing for rapid and coordinated propagation of action potentials?
Which mechanism involves the conversion of mechanical stimuli into a cellular response?
Which mechanism involves the conversion of mechanical stimuli into a cellular response?
What can excessive pulsatile and shearing stresses from blood flow on arterial endothelial cells mediate?
What can excessive pulsatile and shearing stresses from blood flow on arterial endothelial cells mediate?
Which communication type involves indirect intercellular signaling through chemical messengers?
Which communication type involves indirect intercellular signaling through chemical messengers?
Which type of chemical messenger acts on a nearby cell?
Which type of chemical messenger acts on a nearby cell?
What type of hormones typically dissolve in plasma and do not require a carrier for transportation?
What type of hormones typically dissolve in plasma and do not require a carrier for transportation?
Which type of hormone needs a carrier for transportation as they cannot dissolve in plasma?
Which type of hormone needs a carrier for transportation as they cannot dissolve in plasma?
What is a key requirement for neurotransmitter signals to be tightly controlled?
What is a key requirement for neurotransmitter signals to be tightly controlled?
Which type of communication is considered more direct in terms of intercellular signaling?
Which type of communication is considered more direct in terms of intercellular signaling?
What is the storage characteristic of hydrophobic hormones like cortisol?
What is the storage characteristic of hydrophobic hormones like cortisol?
What is the goal of receptor amplification?
What is the goal of receptor amplification?
Where do hydrophilic chemical messengers typically bind?
Where do hydrophilic chemical messengers typically bind?
How do hydrophobic chemical messengers primarily exert their effects?
How do hydrophobic chemical messengers primarily exert their effects?
What is the role of Student Accessibility Services (SAS) on campus?
What is the role of Student Accessibility Services (SAS) on campus?
Where can students find support related to health and performance on campus?
Where can students find support related to health and performance on campus?
