Question

carbohydrate ______ attached to help cells in recognize each other and certain molecules.
list 4 functions of the cell or plasma membrane:
a. _______________
b. _______________
c. _______________
d. _______________
correctly color code and identify the name for each part of the cell membrane.
letter name/color letter name/color
____ phospholipid bilayer (no ____ peripheral protein
color) (red)
____ integral protein (pink) ____ cholesterol (blue)
____ fatty acid tails ____ glycoprotein (green)
(orange)
____ phosphate heads ____ glycolipids (purple)
(yellow)

Explanation:

Part 1: Carbohydrate Attachment (Glycoproteins/Glycolipids)

The blank is filled by "chains" (or "groups") as glycoproteins (carbohydrate chains attached to proteins) and glycolipids (carbohydrate chains attached to lipids) help cells recognize each other and molecules.

Part 2: 4 Functions of the Cell Membrane

a. Selective Permeability: Regulates what enters/exits the cell (e.g., nutrients in, wastes out).
b. Cell Signaling: Transmits signals between cells (e.g., hormone reception).
c. Cell Adhesion: Helps cells stick together (e.g., in tissues).
d. Protection/Barrier: Separates cell from external environment, protecting internal components.

Part 3: Cell Membrane Structure (Color - Code and Letter Assignment)

Assuming a typical cell membrane diagram (e.g., with labels for each component):

Letter	Name/Color	Letter	Name/Color
(e.g., B)	Integral protein (pink)	(e.g., F)	Cholesterol (blue)
(e.g., C)	Fatty acid tails (orange)	(e.g., G)	Glycoprotein (green)
(e.g., D)	Phosphate heads (yellow)	(e.g., H)	Glycolipids (purple)

(Note: Letter assignments depend on the specific diagram. In standard diagrams, the phospholipid bilayer is the base structure, integral proteins span it, fatty acid tails are hydrophobic (inside), phosphate heads are hydrophilic (outside), peripheral proteins attach to the surface, cholesterol stabilizes the bilayer, glycoproteins/glycolipids have carbohydrate chains for recognition.)

Final Answers (Key Points)

• Carbohydrate chains (glycoproteins/glycolipids) aid cell recognition.
• Cell membrane functions: Selective permeability, cell signaling, cell adhesion, protection.
• Structure labels (example):
• Phospholipid bilayer: [Letter, e.g., A]
• Integral protein: [Letter, e.g., B]
• Fatty acid tails: [Letter, e.g., C]
• Phosphate heads: [Letter, e.g., D]
• Peripheral protein: [Letter, e.g., E]
• Cholesterol: [Letter, e.g., F]
• Glycoprotein: [Letter, e.g., G]
• Glycolipids: [Letter, e.g., H]

Answer:

Part 1: Carbohydrate Attachment (Glycoproteins/Glycolipids)

The blank is filled by "chains" (or "groups") as glycoproteins (carbohydrate chains attached to proteins) and glycolipids (carbohydrate chains attached to lipids) help cells recognize each other and molecules.

Part 2: 4 Functions of the Cell Membrane

a. Selective Permeability: Regulates what enters/exits the cell (e.g., nutrients in, wastes out).
b. Cell Signaling: Transmits signals between cells (e.g., hormone reception).
c. Cell Adhesion: Helps cells stick together (e.g., in tissues).
d. Protection/Barrier: Separates cell from external environment, protecting internal components.

Part 3: Cell Membrane Structure (Color - Code and Letter Assignment)

Assuming a typical cell membrane diagram (e.g., with labels for each component):

Letter	Name/Color	Letter	Name/Color
(e.g., B)	Integral protein (pink)	(e.g., F)	Cholesterol (blue)
(e.g., C)	Fatty acid tails (orange)	(e.g., G)	Glycoprotein (green)
(e.g., D)	Phosphate heads (yellow)	(e.g., H)	Glycolipids (purple)

(Note: Letter assignments depend on the specific diagram. In standard diagrams, the phospholipid bilayer is the base structure, integral proteins span it, fatty acid tails are hydrophobic (inside), phosphate heads are hydrophilic (outside), peripheral proteins attach to the surface, cholesterol stabilizes the bilayer, glycoproteins/glycolipids have carbohydrate chains for recognition.)

Final Answers (Key Points)

• Carbohydrate chains (glycoproteins/glycolipids) aid cell recognition.
• Cell membrane functions: Selective permeability, cell signaling, cell adhesion, protection.
• Structure labels (example):
• Phospholipid bilayer: [Letter, e.g., A]
• Integral protein: [Letter, e.g., B]
• Fatty acid tails: [Letter, e.g., C]
• Phosphate heads: [Letter, e.g., D]
• Peripheral protein: [Letter, e.g., E]
• Cholesterol: [Letter, e.g., F]
• Glycoprotein: [Letter, e.g., G]
• Glycolipids: [Letter, e.g., H]