Cell Transport

What organelle controls what moves in and out of a cell?

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Answer explanation

The cell membrane is selectively permeable and controls what moves in and out of a cell.

Tags

NGSS.MS-LS1-2

Movement across the membrane using NO ENERGY

• Passive Transport

• Active Transport

• Exocytosis

• Endocytosis

Answer explanation

Passive literally means no energy! Remember, no energy is used during passive transport. Molecules move with the concentration gradient.

Movement across the membrane using ENERGY!

• Passive Transport

• Active Transport

• Exocytosis

• Endocytosis

Answer explanation

Active Transport uses ENERGY! Think about how when you are active you use energy.

Movement of molecules across the membrane from a high concentration to a low concentration

• Diffusion

• Osmosis

• Active transport

• Endocytosis

Answer explanation

Diffusion is any molecule where osmosis is only water.

Draw the particles at equilibrium

Answer explanation

You should have drawn three more so that there were six on each side. This would make them equal.

What type of movement is being shown in the picture?

• Diffusion

• Osmosis

• Facilitated Diffusion

• Active Transport

Answer explanation

Facilitated diffusion is for large molecules and involves a transport protein.

The movement of water from a high to low concentration

• diffusion

• facilitated diffusion

• osmosis

• condensation

Answer explanation

Osmosis is a special type of diffusion where WATER moves from HIGH to LOW concentration.

What type of transport is illustrated in the picture?

• Diffusion

• Facilitated Diffusion

• Evaporation

• Osmosis

Answer explanation

As you can see, in the illustration the water moved across the membrane. When water moves it is considered osmosis.

Only some materials can move in and out

• Selectively Soluble

• Selectively Permeable

• 100% Permeable

• Diffusion

Answer explanation

Read carefully!

Select = choose

Permeable = allowed

Selectively permeable means that the cell membrane will choose what is allowed in and out.

Tags

NGSS.MS-LS1-2

What type of solution is shown in the photo?

• Hypertonic

• Hypotonic

• Isotonic

Answer explanation

in hypertonic solutions the cell will shrink because the water moves OUT