Transcript POGIL Activities

Process Oriented Guided Inquiry Learning
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Manages the group. Ensures that members are
fulfilling their roles, that the assigned tasks are
being accomplished on time, and that all members
of the group participate in activities and
understand the concepts. You will also ensure that
your group finishes the activity in the set amount
of time- 50 minutes.
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Gathers materials and uses any equipment other
than paper and pencil.
Performs all technical operations for the group,
including the use of a calculator or computer.
Unless otherwise instructed, only the technician in
each group may operate equipment such as this.
Ensures that all materials are correctly collected,
turned in and disposed of so that all areas are
clean.
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Reads the entire activity out loud to the group. The
reader must monitor their volume so that their
group can hear them, but other groups are not
disturbed.
This helps to keep everyone in the group together.
The Manager will tell the Reader when it is time to
read the next part of the activity.
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Records the names and roles of the group
members at the beginning of each activity.
Records the important aspects of group
discussions, observations, insights, etc. The
recorder’s report is a log of the important concepts
that the group has learned.
This person is also responsible for reporting orally
to the class when called for in class discussions.
The spokesperson is also responsible for asking
the teacher any questions from the group (and
must raise his or her hand to be recognized.)
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Extension Questions
23. Metabolism is the collective term used to describe
all the chemical reactions taking place inside living
organisms. Why is water so important for metabolic
reactions?
24. We store excess food in our body either in the form
of carbohydrates (in muscles and the liver) or as fat
(adipose tissue). When our body needs additional
energy it uses the carbohydrate source first as a source
of “quick” energy, then the fat. Why do you think
carbohydrates are used as a source of quick energy
rather than fat? Use complete sentences and scientific
terminology in your response.
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Extension Questions
23. What effect do you expect the structural
differences between prokaryotes and eukaryotes to
have on their functions? Explain in detail.
24. With as much detail as possible, give another
example of an analogy for describing the
difference between prokaryotic cells and eukaryotic
cells.
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Extension Questions
21. Ethanol is one example of alternative fuels for powering
our cars and trucks. Ethanol can be produced in different
ways, but most often by microorganisms acting on plant
materials such as corn. Advocates argue that burning
ethanol would not alter the net emission of CO2 even
though when ethanol is involved in combustion it produces
CO2. What are the pros and cons of producing and burning
ethanol?
22. Electricity consumption is a huge producer of
atmospheric carbon dioxide because much of the USA’s
electricity is produced in coal burning power plants. What
are three other ways that electricity can be produced that
would NOT increase atmospheric carbon dioxide? Which of
these does your group think holds the most promise for the
future?
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17. According to Model 3, what term refers to loose DNA inside of
a nucleus?
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18. During what part of the cell cycle is the DNA in a cell’s
nucleus replicated?
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19. During what part of the cell cycle is the DNA in a cell
condensed into chromosomes?
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20. Replicated chromosomes are often illustrated as an X shape
to match how they look in real life just before cell division.
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a. According to Model 3, which of the following diagrams
correctly show an original set of homologous chromosomes (grey)
and their sister chromatids (black)—the replicated portion?
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b. What structure holds the two sister chromatids together as
they prepare for cell division?
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Extension Questions
18. Refer to Model 2. Study the bone arrangement in the
bird and whale. Propose an explanation for the similarity of
elongated bone arrangement in the lower parts of the
forelimb (metacarpals and phalanges), given the differences
in the animals?
19. Thinking about how traits are inherited and considering
the similarities in bone structure among the various animals
in this activity, what might you expect to find if you
compared the development of embryos among the
organisms used in this activity?
20. Thinking about how traits are inherited, how would you
explain the close similarities between the make-up of the
oxygen-carrying molecule hemoglobin in organisms as
diverse as birds, horses, gorillas, and humans?
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Extension Questions
22. For the past 10 to 25 years, farmers have planted
crop seeds that have been genetically modified to
withstand treatment with a common weed killer called
Roundup®. This allows the farmers to spray their fields
to get rid of weeds without harming their crops.
Recently, more and more farmers have discovered that
their fields have Roundup-resistant pigweed growing
along with their crop. Use what you’ve learned in this
activity to explain how this came about.
23. Many popular products from hand soap to clothing
advertise that they have antibacterial qualities. Most
microbiologists recommend against their routine use in
our daily lives. How can you explain this using your
knowledge from this activity?