Tonicity and Osmoregulation

What is the difference between active and passive transport?

• Active is high to low; Passive is low to high

• Active uses no cell energy; Passive uses cell energy

• Passive is high to low and uses no energy; Active uses energy and is low to high

• Passive uses no cell energy

Fill in the blank:

Osmosis is the movement of ________ across a cell membrane from high to low.

• Carbon dioxide

• Starch

• Water

• Oxygen

An ISOTONIC solution has a(n) ______________ concentration of solute (dissolved stuff) than inside the cell.

• lower
• equal
• higher

What type of solution is this cell in?

• Isotonic
• Hypertonic
• Hypotonic
• diffused

Tags

NGSS.HS-LS1-3

The salt in the glass of saltwater is considered the

• solvent
• solution 
• pepper
• solute

In an isotonic solution which way will the water flow

• it will not flow at all

• it will flow into the cell

• it will flow both ways at equal rates

• out of the cell

A solution outside of a cell that contains a higher water concentration than the cytoplasm of a cell is called:

• solution

• hypertonic

• hypotonic

• isotonic

In this picture, which way will the water move?

• Water will move into the cell
• Water will move out of the cell
• Water will move in and out of the cell
• Water will not move

In this picture, how do you classify the solution?

• The solution is hypotonic
• The solution is hypertonic
• The solution is isotonic
• The solution is my tonic

Tags

NGSS.MS-PS1-2

Which of the following molecules crosses through a semipermeable membrane during the process of osmosis?

• water

• salt

• sugar

• protein