Q1 – Week 9 – 19-20
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week 9
Week of 10/29 – 11/2
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Some People are very serious about phytoplankton. This is a tattoo from a graduate assistant at Hofstra University. I believe this tattoo are dinoflagellates: ![]() |
Video 1:
The Origin of living systems is explained by natural processes.
The process of evolution explains the diversity and unity of life. A number of experimental investigations have provided evidence that the conditions early in the Earth’s history provided an environment capable of generating complex organic molecules and simple cell-like structures. For example, in the “organic soup” model, the hypothesized primitive atmosphere contained inorganic precursors from which organic molecules could have been synthesized through natural chemical reactions catalyzed by the input of energy. In turn, these molecules served as monomers (building blocks) for the formation of more complex molecules, including amino acids and nucleotides. Some models suggest that primitive life developed on biogenic surfaces, such as clay, that served as templates and catalysts for assembly of macromolecules. Under laboratory conditions, complex polymers and self-replicating molecules can spontaneously assemble. It remains an open question whether the first genetic and self-replicating material was DNA or RNA.
10/30 – Tuesday Homework:
1. Complete the Results and Conclusion section (1st draft) of the Brine Shrimp Lab:
2. Please read my notes above and then please read the article about Stanley Miller below:
Be prepared to to have a RAT Quiz on this article tomorrow.
I will explain the Rat Quiz tomorrow.
It might help to make a NORT of the article. 🙂
End of Tuesday.
10/31 – Wednesday Homework:
LED | Fluorescent | |
# of Plants | 169 | 64 |
height mean | 9.38 cm | 5.5 cm |
sd | 4.39 | 1.97 |
THANKS VAL! |
BRINE SHRIMP CONClUSION REQUIREMENTS: Please make sure your conclusion covers three basics:
A: DATA analysis: complete detailed analysis of the the hard data collected.
This has nothing to do with error analysis!!! You should be taking into consideration the error bars that you have created in your graph. The error bars tell us something about the reliability of the data. Also we are NOT proving a hypothesis correct or wrong. The
data “suggests” or there is a possibility..
B: A LEAP: You need to explain what the data means in terms of the biology of the organism. The data
suggests that the Brine Shrimp ……. This really the reason for the investigation. Fully develop your
thoughts based on your evidence. Be logical and make your case as if you were a lawyer trying to
convince a jury of your argument.
C: Error Analysis: What are the possible limitations in your lab. Every experiment has limitations. What
were the limitations in this experiment. What could be done to narrow our approach to better the
questions you laid out in this lab.
* DO NOT MAKE comments that are not logical and are not supported by the evidence. This is an area of conjecture and speculation so it cannot be wrong unless you do not fully develop your thoughts and support your statements with sound logic.
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So these molecules are amino acids! They are what the DNA codes for and when you connect these amino acids you get a protein! The R groups are the part of the amino acid that is in green and these can be polar and non- polar! |
End of week 9!