Exploring Cell Signaling Pathways

12th GradeScience45 min

Learning Objective

I can describe the main steps of cell signaling pathways.

Lesson Flow

Watch Video

10 min

Common cell signaling pathway

Osmosis from Elsevier

Guided Notes

9 min

Key concepts students will learn:

  • Autocrine signals affect the same cell that produces them, while paracrine signals affect nearby cells, and endocrine signals affect distant cells.

  • Hydrophobic ligands can diffuse across the cell membrane and bind to receptors inside the cell, whereas hydrophilic ligands bind to transmembrane receptors on the cell surface.

  • The three main classes of transmembrane receptors are G protein-coupled receptors, enzyme-coupled receptors, and ion channel receptors.

Practice

14 min

8 questions • Multiple choice & Short answer

Exit Ticket

5 min

Describe the three main stages of a cell signaling pathway, including what happens in each stage.

Teacher Guide

Get the complete package:

  • Answer keys for all questions
  • Differentiation strategies
  • Extension activities
  • Printable student handouts