Interactive Cell Transport Concept Map to help students understand and visualize the relationships in passive transport processes.

Absolutely! Let’s solve this Cell Transport Concept Map step by step using the word bank and biological principles. The goal is to fill in all blank boxes with the correct terms from the Word Bank.

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## 🔍 OVERVIEW:
This concept map focuses on Passive Transport, which does not require energy (ATP). It includes:
- Diffusion
- Facilitated Diffusion
- Osmosis
- And the 3 types of solutions: Hypertonic, Hypotonic, Isotonic

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# ✔ STEP-BY-STEP SOLUTION:

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🟦 LEFT SIDE — GENERAL PASSIVE TRANSPORT

#### Box 1: “Definition” of Passive Transport
> Answer: Diffusion

*Why?* Passive transport is broadly defined as the movement of molecules *down* their concentration gradient without energy. The most general term for this is Diffusion.

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#### Below that: “Molecules move from ___ concentration to ___ concentration”
> Answer: High → Low

*Why?* Passive transport always moves substances from high to low concentration — down the concentration gradient.

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#### Next box: “Molecules move ___ the concentration gradient”
> Answer: With

*Why?* They move *with* the gradient — no energy needed.

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#### “Uses” box (under Passive Transport)
> Answer: Transport Proteins

*Why?* While simple diffusion doesn’t need proteins, facilitated diffusion (a type of passive transport) uses channel or carrier proteins. Since the map shows images of channel and carrier proteins below, this box must refer to those.

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#### “2 Types” — branching from “Uses: Transport Proteins”
> Answers: Channel Proteins and Carrier Proteins

*Why?* These are the two main types of transport proteins used in facilitated diffusion.

*(Note: Simple diffusion doesn’t use proteins, but since this branch comes from “Uses Transport Proteins”, it’s specifically about facilitated diffusion.)*

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🟦 RIGHT SIDE — OSMOSIS & SOLUTIONS

#### Box at top right: “The diffusion of ___ across a ___ membrane”
> Answer: Water across a Selectively Permeable membrane

*Why?* This is the definition of Osmosis — diffusion of water across a selectively permeable membrane.

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#### Below that: “3 types of solutions”
These are illustrated with diagrams showing water moving into/out of cells.

##### Top diagram: Water moving INTO cell → Cell swells
> Answer: Hypotonic

*Why?* In a hypotonic solution, solute concentration outside is *lower* than inside → water enters cell.

##### Middle diagram: No net water movement → Cell stays same
> Answer: Isotonic

*Why?* Equal solute concentration inside and outside → no net movement.

##### Bottom diagram: Water moving OUT of cell → Cell shrinks
> Answer: Hypertonic

*Why?* Higher solute concentration outside → water leaves cell.

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🟦 CENTER — “Does not require” (above Passive Transport)

> Answer: ATP

*Why?* Passive transport does not require ATP (energy). Active transport does.

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## ✔ FINAL FILLED CONCEPT MAP:

Here’s how all blanks should be filled:

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Left Side:

- Definition box → Diffusion
- Molecules move from High concentration to Low concentration
- Molecules move With the concentration gradient
- Uses → Transport Proteins
- 2 types → Channel Proteins and Carrier Proteins

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Right Side:

- Definition box → “The diffusion of Water across a Selectively Permeable membrane”
- 3 types of solutions:
- Top → Hypotonic
- Middle → Isotonic
- Bottom → Hypertonic

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Center:

- “Does not require” → ATP

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## 🧠 BONUS EXPLANATION:

- Passive Transport = Movement without energy (ATP), down concentration gradient.
- Simple Diffusion: Small/nonpolar molecules move directly through membrane.
- Facilitated Diffusion: Larger/polar molecules use channel or carrier proteins.
- Osmosis: Special case — only water moves via diffusion across selectively permeable membrane.
- Tonicity:
- Hypotonic: Less solute outside → water in → cell swells
- Isotonic: Equal solute → no change
- Hypertonic: More solute outside → water out → cell shrinks

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✔ You’ve now completed the concept map correctly using biological principles and the provided word bank!

Let me know if you’d like a visual version or printable answer key!