ap biology diffusion

Which way would the purple molecules move through the semi-permeable membrane?

• From the  A side  to the B-side
• From the B side to the A side
• none of the purple molecules would move
• they would move equally back and forth in a state of dynamic equilibrium

Tags

NGSS.HS-PS1-5

Which of the following is responsible for getting large or charged (polar) molecules across the cell membrane?

• E
• B
• C
• D

Hydrophobic region of the cell membrane?

• E
• B
• C
• A 

When cells are placed in a __________ solution they begin to swell.

• Hypertonic
• Isotonic
• Hypotonic
• Equalized

Tags

NGSS.MS-LS1-2

Which form of active transport is being shown? (Inside of  the cell is tan colored) 

• Facilitated Diffusion
• Exocytosis
• Endocytosis
• Receptor-mediated endocytosis

 If a cell containing 5% salt is placed into a glass of water with 20% salt, the water is _______ compared to the cell.

• hypertonic-
• hypotonic
• isotonic

Water will move?

• Into the cell
• Out of the cell
• Neither into or out of the cell

Tags

NGSS.HS-LS1-3

What type of transport is this?

• Endocytosis
• Diffusion
• Exocytosis
• Osmosis

A HYPERTONIC solution has a _____ concentration of solute than the interior of the cell and a cell will ______ when placed into this solution.

• lower; shrink
• lower; swell
• higher; shrink
• higher; swell

What is plasmolysis?

• Pulling away of the plant cell membrane as it loses water in a hypertonic solution.
• Pulling away of the animal cell membrane as it undergoes osmosis.
• An increase in turgor pressure as the cell undergoes osmosis.
• Contraction of the protoplast of a plant cell as a result of gaining water.