Cellular Conversations: How Cells Communicate
Cellular Conversations: How Cells Communicate
Learning objective
Lesson duration is: 1 minItems in this lesson
Cellular Conversations: How Cells Communicate
Learning objective
Learning Objective
At the end of the lesson, you will understand how cells communicate, including signaling types, receptors, and signal transduction.
What do you already know about cell communication?
Why Cells Communicate
Cells communicate to coordinate actions, respond to stimuli, and maintain homeostasis.
Types of Cell Signaling
Cell signaling includes autocrine, paracrine, endocrine, and direct signaling.
Autocrine Signaling
Cells release signals that bind to receptors on their own surface.
Paracrine Signaling
Signals are released to affect nearby cells, such as neurotransmitters.
Endocrine Signaling
Hormones travel through the bloodstream to distant target cells.
Direct Signaling
Cells communicate through direct contact, like gap junctions.
Receptors and Ligands
Receptors bind ligands to initiate a cellular response.
Signal Transduction Pathways
Convert an external signal to a functional change within the cell.
G-Protein Coupled Receptors
Involved in many signal transduction processes, using G-proteins.
Cellular Response
Responses can include gene expression, metabolism changes, or apoptosis.
Review and Questions
Summarize key points and answer any questions.
Write down 3 things you learned in this lesson.
Write down 2 things you want to know more about.
Ask 1 question about something you haven't quite understood yet.
