Fast and Curious: Cell Transport

When molecules move from an area of high concentration to an area of low concentration.

• Active Transport

• Passive Transport

• Endocytosis

• Exocytosis

Answer explanation

Molecules move with their concentration gradient (High --> Low). No energy is needed from the cell.

Molecules move from an area of high concentration to an area of low concentration directly through the phospholipid bilayer.

• Facilitated Diffusion

• Osmosis

• Simple Diffusion

• Active Transport

Answer explanation

Molecules such as Oxygen (O₂) and Carbon Dioxide (CO₂) are small and lack a charge. They are capable of passing through the lipid bilayer.

When Molecules move through an area of high concentration to an area of low concentration using a channel protein.

• Facilitated Diffusion

• Simple Diffusion

• Osmosis

• Active Transport

Answer explanation

Molecules need the assistance of a channel or carrier protein due to size or charge (ions) they are unable to directly pass through the phospholipid bilayer.

The movement of water across the plasma membrane from an area of high concentration to an area of low concentration.

• Osmosis

• Simple Diffusion

• Active Transport

• Facilitated Diffusion

Answer explanation

Osmosis is associated with the movement of water.

A solution with a high amount of solute compared to the inside of the cell. This will cause water to leave the cell, causing the cell to shrink.

• Hypertonic Solution

• Hypotonic Solution

• Isotonic Solution

Answer explanation

water will always move towards the greatest concentration of solute.

Tags

NGSS.HS-LS1-3

A solution with a low amount of solute compared to the inside of the cell. This will cause water to enter the cell, causing the cell to swell.

• Hypertonic Solution

• Hypotonic Solution

• Isotonic Solution

Answer explanation

water will always move towards the greatest concentration of solute.

Tags

NGSS.HS-LS1-3

A solution that has an equal concentration to the inside of the cell. The cell size stays the same.

• Hypertonic Solution

• Hypotonic Solution

• Isotonic Solution

Answer explanation

Tags

NGSS.HS-LS1-3

A substance that can be dissolved in water. Can affect the direction that water will flow into or out of the cell.

• Solution

• Solute

• Membrane

• Phospholipid

Answer explanation

Anything that can dissolve in water. Sugar and salt are good examples.

When molecules are moved against their concentration gradient, from an area of low concentration to an area of high concentration. This involves the use of ATP (Energy).

• Facilitated Diffusion

• Active Transport

• Osmosis

• Simple Diffusion

Answer explanation

ATP is needed to force molecules to move AGAINST their concentration gradient (Low--> High).

When cells take in large amounts of material by engulfing it with their plasma membrane to form a vesicle

• Exocytosis

• Osmosis

• Endocytosis

• Facilitated Diffusion

Answer explanation

White blood cells in your body can engulf bacteria and viruses to help fight off infections.