dialysis lab

Iodine turns dark purple when in contact with starch. After an hour, the solution in the dialysis tubing turned dark purple. Why?

• The starch in the tubing diffused out.
• The iodine and water diffused in.
• The iodine changed into starch.
• The starch changed into iodine

Tags

NGSS.HS-PS1-2

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

Tags

NGSS.MS-LS1-2

The solution of C is 

• hypertonic
• hypotonic
• isotonic
• diatonic

Tags

NGSS.MS-LS1-2

The solution of A is.....

• hypertonic
• hypotonic
• isotonic
• diatonic

Tags

NGSS.HS-LS1-3

The cell in picture A  is going to

• shrink
• swell 
• stay the same

Tags

NGSS.HS-LS1-3

The cell in picture B is going to......

• shrink
• swell 
• stay the same

Tags

NGSS.HS-LS1-3

Which of the following items was unable to cross the dialysis tubing and why (from the Osmosis Diffusion Experiment)?

• Water because it was too small.
• KI because it was too large.
• Starch because it was too large.
• Water because it is very polar and forms hydrogen bonds.

Iodine turns dark purple when in contact with starch. After an hour, the solution in the dialysis tubing turned dark purple. Why?

• The starch in the tubing diffused out.
• The iodine and water diffused in.
• The iodine changed into starch.
• The starch changed into iodine

What type of solution is this cell in?

• hypertonic
• endotonic
• isotonic
• hypotonic

Tags

NGSS.HS-LS1-3

Which of the following items was unable to cross the dialysis tubing and why (from the Osmosis Diffusion Experiment)?

• Water because it was too small.
• KI because it was too large.
• Starch because it was too large.
• Water because it is very polar and forms hydrogen bonds.