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eMusic Study Pack • Biology
Student
📖 Comprehensive Note
Facilitated diffusion is a type of passive transport that helps larger or polar molecules cross the cell membrane through carrier or channel proteins without using energy (ATP).
- Occurs for molecules like glucose, amino acids, and ions.
- Moves substances from a region of higher concentration to lower concentration.
- Requires membrane proteins but not energy.
🎤 Lyrics + Audio
Verse 1
Facilitated Diffusion
It is also a passive process — no energy is used.
It allows larger or polar molecules
to pass through the membrane.
It occurs with the help of carrier or
channel proteins in a cell membrane.
It moves molecules across a cell membrane
from a region of higher to lower concentration.
Chorus
Facilitated diffusion is the movement
of molecules
across a cell membrane,
From a region of higher to lower concentration with
the help of carrier or channel proteins.
Movement of glucose and amino acids into cells
using carrier proteins.
Chorus:
Facilitated diffusion is the movement
of molecules
across a cell membrane,
From a region of higher to lower concentration with
the help of carrier or channel proteins. (2x
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📊 Line-by-Line Study Guide
| Lyric Line | Explanation |
|---|---|
| No energy is used | Facilitated diffusion is passive and doesn’t require ATP. |
| Uses carrier or channel proteins | Proteins act as pathways for large or polar molecules. |
| Moves from higher to lower concentration | Diffusion down the concentration gradient. |
| Movement of glucose and amino acids | Real-life examples of facilitated diffusion. |
💡 Mnemonic
"Facilitated = Friendly Passage" — the cell gives large molecules a “helping hand” through special proteins.
❓ Quiz
1. Does facilitated diffusion require energy?
2. What helps molecules pass through the membrane?
3. What direction does facilitated diffusion move molecules?
🃏 Flashcards
Q1: What is facilitated diffusion?
Passive transport using carrier or channel proteins.
Q2: Does it require ATP?
No, it is a passive process.
Q3: Example of molecules?
Glucose and amino acids.
🎯 Drag & Drop
Match the term with its description:
Terms
Descriptions
Carrier Protein
Channel Protein
📌 Summary
- Facilitated diffusion is passive — no energy needed.
- Helps move large or charged molecules across membranes.
- Uses carrier and channel proteins.
- Example: Glucose entering a cell.