Transcript Primordial Soup Lab

Primordial Soup Lab
First, read your background information
for this lab and answer the following
questions in COMPLETE SENTENCES
(if you do this, you do not have to write the question)
Primordial Soup Lab
Background Info:
1.
Background Info Questions
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3.
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6.
Define abiogenesis.
What are thought to be the atmospheric conditions on primordial Earth?
In the 1968 experiment on lava rocks, what is the significance of water vapor
forming in the amino acid mixture?
Why do you think a salt water solution being poured on the substance ‘simulates
what may have happened in primordial times’?
What circumstances occurred that eventually allowed aerobic organisms to
develop and evolve?
Draw the chart below and create colored drawings to represent each step of
proposed cellular evolution:
BioMolecules
Protocells
Prokaryote
Eukaryote
The last few questions are not found in the Background info, but you do need to know
them….use your book….
7. What is osmosis?
8. What happens to a cell in a hypotonic solution, why?
9. What happens to a cell in a hypertonic solution, why?
NEXT, read your procedure steps and
make sure you understand what you
will be doing
(you could possibly be quizzed over the procedure before I let you into the lab)
Primordial Soup Lab
Background Info:
1-9.
Purpose:
NOW, Write a brief purpose for this
lab…
List your group members and their
jobs…
Team/Jobs:
Lastly, get your data collection
charts and circles ready to fill in…
Data Collection:
Two charts, three circles, on
next slides
Data Collection:
Bacteria Cell Characteristics, Table 1
- Carries out osmotic activity
- Selective permeability with its plasma membrane
- They have two boundaries
- Reproduce through binary fission (asexual)
- Contain genetic material
- Size?
- Other observations:
Data Collection:
Microsphere comparison, Table 2
2.5 minutes microspheres
Prokaryote
4 minutes microspheres
2.5 minute
4 minute