osmosis diffusion lab n.
Download
Skip this Video
Loading SlideShow in 5 Seconds..
OSMOSIS & DIFFUSION LAB PowerPoint Presentation
Download Presentation
OSMOSIS & DIFFUSION LAB

Loading in 2 Seconds...

play fullscreen
1 / 12

OSMOSIS & DIFFUSION LAB - PowerPoint PPT Presentation


  • 97 Views
  • Uploaded on

OSMOSIS & DIFFUSION LAB. Animation from: http://www.lionden.com/cell_animations.htm. SAFETY. DO NOT EAT OR DRINK ANYTHING IN LAB! IODINE IS POISONOUS WEAR AN APRON! IODINE WILL STAIN YOUR SKIN AND CLOTHING. Image from: http://www.llnsciencepark.be/en2/images/caution.jpg.

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

OSMOSIS & DIFFUSION LAB


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
osmosis diffusion lab

OSMOSIS & DIFFUSIONLAB

Animation from: http://www.lionden.com/cell_animations.htm

safety
SAFETY
  • DO NOT EAT OR DRINK ANYTHING IN LAB!
  • IODINE IS POISONOUS
  • WEAR AN APRON!IODINE WILL STAIN YOUR SKIN AND CLOTHING

Image from: http://www.llnsciencepark.be/en2/images/caution.jpg

iodine test for starch
IODINE TEST for STARCH

Iodine turns BLUE-BLACK in the presenceof starch.

http://faculty.ntcc.edu/mhearron/cell_chemistry.htm

dip test for glucose
DIP TEST FOR GLUCOSE

If glucose is presentstrip will turn from YELLOW to ARMY GREEN

Image modified from: http://www.freepatentsonline.com/6531322.html

station 1

http://www.chemistryland.com/CHM107Lab/Lab5/Soil/Lab5Exp3Soil.htmlhttp://www.chemistryland.com/CHM107Lab/Lab5/Soil/Lab5Exp3Soil.html

STATION #1

1. Fill cup with ¾ full

with water

2. Use test strip to TEST FOR GLUCOSE.(Strip will turn from yellow to green if glucose is present)

3. Mark test results in lab packet

4. Go to Station #2

station 2
STATION #2
  • Add 30 drops of IODINE to water

in your cup.

Be careful!

IODINE IS POISONOUS!

It will stain your clothes!

It will stain your skin!

2.Use a permanent marker to label the level of liquid in the cup.

3. Go to Station #3.

Image by Riedell

station 3

http://www.beartoes.com/images/sink.jpg

STATION #3

1. Hold membrane bag UNDER

RUNNING WATER and rub it

with your fingers until it opens.

2. Run water THROUGH the INSIDE of the bag.

3. Tie a KNOT at ONE end of the bag.

4. Go to Station #4.

station 4
STATION #4

1. Make sure you have

tied a knot in ONE

end of the

membrane bag.

2. Fill bag with GLUCOSE

(use 2 fingers to determine how much to fill it)

3. Pinch end closed to keep from spilling

4. Go to Station #5.

Image by Riedell

station 5
STATION #5
  • 1. Add STARCH tothe membrane bagon top of the glucose

Images by Riedell

(use 2 fingers to determine how much to fill it)

2. Leave a little space at the end and

tie a KNOT to seal the bag.

3. Go to Station #6.

station 6
STATION #6
  • Take your MEMBRANE BAG to the SINK and RINSE IT ………really, really, really, really, really, really, really, really,(I mean it!) REALLLLLLLLY WELL.
  • Go to Station #7.
station 7
STATION #7

1. DRY OFF the membrane bag and use a

BALANCE to determine its MASS.

Write this down

in your lab packet

Remember which balance you use so you

can use the SAME ONE tomorrow!

station 8
STATION #8

1. Use PERMANENT MARKER to mark level of liquid in your cup.

2. Take cup back to your table.

3. START EXPERIMENT by

placing the membrane bag

in the cup.

4. WAIT AND WATCH WHAT HAPPENS!

Image by Riedell