AP Bio Lab Changesx - msta

educationafflictedBiotechnology

Oct 4, 2013 (3 years and 11 months ago)

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Instructors can continue to use
most of the “Dirty Dozen” as long
as an inquiry
-
based approach is
applied.


Use of calculators


Formula sheet


Inquiry
-
based investigations





Inquiry
-
based investigations


Emphasis on a variety of reporting
strategies


Longer timeframe (still 25% of time
but each investigation builds on
initial understanding to produce
authentic investigation)





Circulatory System


Aquatic Primary Productivity


Investigation 1
: Artificial Selection


Investigation 3
: Bioinformatics
(BLAST)



Artificial Selection


Modified Animal Behavior


Fruit Flies


Choice chambers


Food preferences


Light and Dark


Temperature


Taxis behaviors



Hardy
-
Weinberg


Computer
-
based modeling using
Excel® spreadsheet


Alternative labs


BioQUEST

-

http://bioquest.org/


HHMI
-

http://www.hhmi.org/biointeractive/ev
olution/pocket_mouse_evolution.html





BLAST


DNA sequence
comparisons


Evolutionary Relationships /
Cladograms


Bioinformatics database to
compare nucleic acid, protein
sequences to establish
evolutionary relationships


Alternatives


Focus topic


The origin of human
malaria parasite (
P.
falciparum
)


Diffusion / Osmosis


Added cell size diffusion activity


Retains dialysis component


Retains water potential


Photosynthesis


Replaces DPIP experiment with
floating leaf disc assay


Retains pigment
chromotography


Cellular Respiration


Microscale

using smaller seeds


Alteratives


Animal Models with respiration
chambers


Standard set up still okay


Cell Division: Mitosis and Meiosis


Uses
lectin
-
like substance to alter
mitosis


Cell staining to evaluate
differences in mitotic activity


Cell cycle control case studies


HeLa

cells, Philadelphia
chromosomes


Bacterial Transformation


Same as always


Lower opportunity for inquiry


Suggestions????


Restriction Enzyme Lab


Forensic introduction


Could include enzymatic
digestion rather then predigested
samples


Many kits available with forensic
spin


Energy Dynamics (replacement
for Aquatic Primary Productivity)


Attempts to compare primary
producers to primary consumers


Long timeframe, less than direct
comparison


Any online
trophic

level activity


BioQUEST



Transpiration (w/ or
wi
/ sensors)


Still
potometer

EEEKKKK


Please go whole plant. It avoids
all the technical difficulties.


Takes a little longer, but worth it!!


Animal Behavior changed to fruit
fly food preferences


Inexpensive


Easily adapted to inquiry
-
style


Enzyme Catalysis


Change to turnip
peroxidase

from
catalase


Great opportunity for inquiry


Works easily


but
guaiacal

very
“aromatic”