The Cell Membrane and Passive Transport

Which term or phase best describes the cell membrane?

• impermeable

• semi-permeable

• completely permeable

• solid

Tags

NGSS.MS-LS1-2

The phospholipids that make up plasma membranes are arranged in a ____________ structure.

• bi-layer

• cubic

• single-layer

• triple-layer

Tags

NGSS.MS-LS1-2

The function of the cell membrane is to:

• control what enters and leaves the nucleus

• control what enters and leaves the cell

• give a plant cell extra support

Tags

NGSS.MS-LS1-2

Passive transport is called "passive" because it occurs WITHOUT

• cause.
• energy.
• a concentration gradient.
• a cell wall.

Osmosis is the diffusion of _____ across a membrane

• glucose
• NaCl
• proteins
• water

When the concentration of solutes on both sides of a membrane is the SAME, the solution is

• isotonic
• hypertonic
• hypotonic

Tags

NGSS.HS-LS1-3

Facilitated diffusion involves movement of molecules across a membrane when they bond to 

• channel proteins
• lipid proteins
• a protein pump (carrier protein)
• sticky proteins

If there is 25% oxygen inside the cell and 50% oxygen in the outside blood, which direction will the oxygen move?

• Out of the cell
• Into the cell
• The cell is at equilibrium

An animal cell placed in a hypertonic (salty) solution will

• Shrink
• Swell
• Stay the same

Which type of Passive Transport is being represented in this picture?

• Passive Diffusion
• Simple Diffusion
• Active Diffusion
• Facilitated Diffusion