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Bean seed germination

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					Bean seed germination
• 1. Observe 2 beans that are dry. 1Draw
  them true size.
• 2 Measure the mass, length and width.
  Record general observations about the
  beans.
• Soak several beans in water over night.
          On your lab paper:
• 1. Day 1: true size.2 pts
• 2. Day 1: measurements and observations :
  mass, length, width and observations 4pts
• 2. Observe the 2 beans and 3draw the true
  size. Compare to the dry beans and record
  general observations. 4 Measure the mass,
  length and width after soaking. Peel off the
  seed coat and open one bean. Look at it
  under the dissecting scope. 5Draw a
  diagram of it on 20X power. 6 What
  happened to the bean after soaking it in
  water? Use quantitative and qualitative
  descriptions! 3. Roll the beans in paper
  toweling that is moist. Place this in a cup
  and cover it with a plastic bag. Let the
  beans germinate for several days.
 On your lab paper add to day one:

• 3. Day 2: true size 2 pts
• 4. Day 2: measurements and observations :
  mass, length, width and observations 4pts
• 5. Day 2: Draw a diagram of it on 20X power.
  2 pts
• 6. Day 2: what happened to the bean? 3pt
• 7Draw a true size diagram of a bean on
  day 5 of the germination process. 8Label
  the parts using the diagram in the book on
  page 676 or 679. (Record the actual day
  of germination you use as it may vary)
• 4. Select one part to observe under the
  dissecting scope. Look at it and 9draw a
  diagram. Make sure to label the power
  and label what part of the bean you
  selected to draw. Put the beans back in
  paper toweling and let then continue to
  grow for another 2 days
• 5. Remove a bean and 10draw it true
  size. This will be around day 7. Replace
  the remaining beans in the paper toweling
  to continue to grow.
• 6. 11Write a description of the process that the
  beans have been going through from day one.
  Use the book to help you use the proper
  terminology for the germination of a bean seed.
• 7. Plant the remaining sprouts in the cup with
  soil. Place them in an area where they will
  receive light.
• 8. 12How could you do an experiment to show
  phototropism?
• 9. Using a clear cup, you can see the roots
  growth. 13What can be observed about the
  direction of the root’s growth? 14What type of
  tropism is this called?
Summary of what should be on your lab paper for the bean lab 32pts
1. Day 1: true size.2 pts
2. Day 1: measurements and observations : mass, length, width and
   observations 4pts
3. Day 2: true size 2 pts
4. Day 2: measurements and observations : mass, length, width and
   observations 4pts
5. Day 2: Draw a diagram of it on 20X power. 2 pts
6. Day 2: what happened to the bean? 3pt
7.Day 5: Draw a true size diagram3 pts
8. Label the parts
9.Day 5: draw a diagram of one part under the dissecting scope2 pts
10. Day 7: draw it true size 2 pts
11. Write a description of the process 4pts
12. How could you do an experiment to show phototropism? 2 pts
13. What can be observed about the direction of the root’s growth? 1pt
14. What type of tropism is this called? 1pt

				
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posted:10/12/2012
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