Passive Transport Mechanisms: A High School Biology Reading
A reading passage and summary packet that introduces passive transport across the cell membrane, including simple diffusion, Fick's Law, and the role of the lipid bilayer. It builds reading comprehension and scientific explanation skills for advanced high school biology students, and it works well as a single 45-minute reading-and-summary block or as independent homework.
Teacher Guide & Tips
- Use this as a pre-lab or launch reading before a diffusion or osmosis investigation, so students arrive with the vocabulary of gradients and permeability already in hand.
- Discussion question: Why can oxygen cross the membrane easily while glucose and ions need help, and what does that tell us about the lipid bilayer's structure?
- Scaffold for struggling readers: have them annotate each paragraph with one key term and a one-sentence paraphrase, and provide a short glossary for terms like equilibrium, permeability, and hydrophobic.
- Extension for advanced students: ask them to predict how changing membrane thickness or surface area would alter the rate of diffusion using Fick's Law, and to justify the prediction quantitatively.
- Estimated time: about 20 to 30 minutes for the reading and summary, plus 10 to 15 minutes for discussion.
What is Diffit?
Teachers use Diffit to get quality materials for their unique classrooms. Adjust difficulty, add scaffolds, or change the topic to get started.
Try Diffit for freeTeacher Guide & Tips
- Use this as a pre-lab or launch reading before a diffusion or osmosis investigation, so students arrive with the vocabulary of gradients and permeability already in hand.
- Discussion question: Why can oxygen cross the membrane easily while glucose and ions need help, and what does that tell us about the lipid bilayer's structure?
- Scaffold for struggling readers: have them annotate each paragraph with one key term and a one-sentence paraphrase, and provide a short glossary for terms like equilibrium, permeability, and hydrophobic.
- Extension for advanced students: ask them to predict how changing membrane thickness or surface area would alter the rate of diffusion using Fick's Law, and to justify the prediction quantitatively.
- Estimated time: about 20 to 30 minutes for the reading and summary, plus 10 to 15 minutes for discussion.
Passive Transport Mechanisms: A High School Biology Reading
A reading passage and summary packet that introduces passive transport across the cell membrane, including simple diffusion, Fick's Law, and the role of the lipid bilayer. It builds reading comprehension and scientific explanation skills for advanced high school biology students, and it works well as a single 45-minute reading-and-summary block or as independent homework.
What is Diffit?
Teachers use Diffit to get quality materials for their unique classrooms. Adjust difficulty, add scaffolds, or change the topic to get started.
Try Diffit for free