Bio | Lesson 7: Cell Membranes and Transport

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Open Ended

Why is it important for the cell membrane to be fluid (be able to stretch, shrink, and bend a bit)?

Draw

Use arrows to indicate the direction of diffusion for each cell.

Draw

For this cell, WATER moves across the membrane, but glucose does not. If 10% of the solution is glucose, then the rest is water.

Draw an arrow to show the movement of WATER into or out of the cell.

Match

Match the vocabulary to the correct definition.

• A type of lipid that makes up the cell membrane, with a hydrophilic (water-attracting) head and hydrophobic (water-repelling) tail.

• The movement of molecules across a cell membrane without the use of energy, from an area of high concentration to low concentration.

• The movement of molecules across a cell membrane using energy (ATP), from an area of low concentration to high concentration.

• The movement of water molecules across a semi-permeable membrane from an area of low solute concentration to high solute concentration.

• The process by which certain white blood cells engulf and digest large particles, such as bacteria and dead cells.

Phospholipids

Passive Transport

Active Transport

Osmosis

Phagocytosis

• Phospholipids

• Passive Transport

• Active Transport

• Osmosis

• Phagocytosis

Labeling

Complete the chart by placing the correct words in the boxes.

Drag labels to their correct position on the image

Exocytosis

Energy/ATP

Equilibrium

Endocytosis

Diffusion

Low concentration

Cell membrane

Phospholipids

Osmosis