Biology: Cell Transport

What is Homeostasis?

• A stable, internal conditions

• A unstable, internal conditions

Tags

NGSS.HS-LS1-3

In what direction will water move in a cell placed into a hypotonic solution?

• out of the cell

• into the cell

Which accurately describes a molecular pump?

• no energy is needed water moves freely through the cell membrane

• a cell uses energy to pump molecules across the membrane

When a cell uses energy to transport ions against the concentration gradient _________ is used.

• active transport

• passive transport

Predict what would happen to a cell that was placed in a hypertonic solution.

• the cell would shrivel

• the cell would expand

• the cell would remain the same

The movement of water down a concentration gradient within the cell is called?

• diffusion

• osmosis

What organelle controls the movement of susbstances into and out of the cell?

• cell membrane

• cell wall

Tags

NGSS.MS-LS1-2

What is selectively permeable?

• allows no substances to pass through

• allows all substances to pass through

• only allows certain substances to pass through

Active transport...

• is limited to only things leaving the cell

• includes diffusion

• requires energy

In what direction will water move if the cell is placed into an isotonic solution?

• into the cell

• out of the cell

• net movement will equal zero