Free Printable Cell Membrane Coloring Worksheet Collection - Free Printable

Problem Overview:

The task involves identifying and labeling the components of a cell membrane, coloring them according to the provided key, and answering questions about their functions. Below is a step-by-step solution.

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Step 1: Identify and Color Each Component of the Cell Membrane

#### Color Key:
- Phospholipid Bilayer: No color
- Integral protein: Purple
- Fatty acid tails: Orange
- Phospholipid head: Yellow
- Peripheral protein: Red
- Cholesterol: Brown
- Carbohydrate chain: Green
- Glycoproteins: Blue

#### Labeling the Diagram:
Using the diagram provided, match each letter (A-H) with the corresponding component:

1. A: Outer surface of the membrane (no specific structure labeled here).
2. B: Integral protein (purple)
3. C: Phospholipid head (yellow)
4. D: Fatty acid tails (orange)
5. E: Peripheral protein (red)
6. F: Cholesterol (brown)
7. G: Carbohydrate chain (green)
8. H: Glycoprotein (blue)

#### Colored Diagram:
- Integral protein (B): Color purple.
- Fatty acid tails (D): Color orange.
- Phospholipid head (C): Color yellow.
- Peripheral protein (E): Color red.
- Cholesterol (F): Color brown.
- Carbohydrate chain (G): Color green.
- Glycoprotein (H): Color blue.
- Phospholipid bilayer (overall structure): No color (as it is the background).

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Step 2: Label Hydrophobic and Hydrophilic Portions of the Phospholipids

- Hydrophobic portion: The fatty acid tails (D) are hydrophobic and repel water.
- Hydrophilic portion: The phospholipid heads (C) are hydrophilic and attract water.

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Step 3: Match Functions with Letters

#### Function Descriptions:
1. Attracts water: Phospholipid heads (C) are hydrophilic and attract water.
2. Repels water: Fatty acid tails (D) are hydrophobic and repel water.
3. Helps maintain the flexibility of the membrane: Cholesterol (F) helps maintain membrane fluidity.
4. Makes up the bilayer (2 answers): Phospholipid heads (C) and fatty acid tails (D) together make up the phospholipid bilayer.
5. Involved in cell-to-cell recognition: Glycoproteins (H) are involved in cell recognition.
6. Helps transport materials (such as glucose) across the cell membrane: Integral proteins (B) act as channels or carriers for material transport.

#### Matching:
- Attracts water: C
- Repels water: D
- Helps maintain the flexibility of the membrane: F
- Makes up the bilayer: C and D
- Involved in cell-to-cell recognition: H
- Helps transport materials: B

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Final Answer:

#### Color Coding:
- B: Purple (Integral protein)
- C: Yellow (Phospholipid head)
- D: Orange (Fatty acid tails)
- E: Red (Peripheral protein)
- F: Brown (Cholesterol)
- G: Green (Carbohydrate chain)
- H: Blue (Glycoprotein)

#### Hydrophobic and Hydrophilic Portions:
- Hydrophobic: D (Fatty acid tails)
- Hydrophilic: C (Phospholipid heads)

#### Function Matching:
1. Attracts water: C
2. Repels water: D
3. Helps maintain the flexibility of the membrane: F
4. Makes up the bilayer: C and D
5. Involved in cell-to-cell recognition: H
6. Helps transport materials: B

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Boxed Final Answer:

\[
\boxed{
\begin{array}{l}
\text{Color Coding:} \\
\text{B: Purple (Integral protein)} \\
\text{C: Yellow (Phospholipid head)} \\
\text{D: Orange (Fatty acid tails)} \\
\text{E: Red (Peripheral protein)} \\
\text{F: Brown (Cholesterol)} \\
\text{G: Green (Carbohydrate chain)} \\
\text{H: Blue (Glycoprotein)} \\
\\
\text{Hydrophobic and Hydrophilic Portions:} \\
\text{Hydrophobic: D (Fatty acid tails)} \\
\text{Hydrophilic: C (Phospholipid heads)} \\
\\
\text{Function Matching:} \\
\text{1. Attracts water: C} \\
\text{2. Repels water: D} \\
\text{3. Helps maintain flexibility: F} \\
\text{4. Makes up the bilayer: C and D} \\
\text{5. Involved in cell-to-cell recognition: H} \\
\text{6. Helps transport materials: B} \\
\end{array}
}
\]