Complete summary inclusive of lecture notes and the textbook to give you the full array of content examined in this introductory module :) Cell structure, cloning and origins of life are covered.
↳ life world 3,9 billion years ago
life prokaryotes
early
•
•
cyanobacteria ( blue green algae) micro-organisms found in water
-
=
by product ( photosynthetic process)
↳ evolved and released 02 as a -
: .
02 accumulated in the atmosphere .
4) HOW DID LIFE ORIGINATE ?
④ PRIMORDIAL SOUP HYPOTHESIS
↳
oparin haldane theory
-
early atmosphere reducing / electron
adding atmosphere
•
=
-
could be
synthesized from simple molecules
•
organic compounds
↳
energy provided by lightning & ur
'
radiation
↳ '
early oceans
=
solution / soup
:
life arose out this of soup .
•
MILLER EXPERIMENT
mimic conditions on earth
↳ closed system early
simulate
water
flask primeval sea
° =
-
water heated
↳ some uapourieed and moved into 2nd flask '
second
flask
'
-
contains
gases of early atmosphere
NHS
eg.CH 4 , ,
H2 .
sparks simulate
lightning
-
-
condenser cooled atmosphere
:
raining water + dissolved molecules .
-
samples periodically collected
for analysis
.
MILLER EXPERIMENT
=
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller erinsnotes. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $2.84. You're not tied to anything after your purchase.
