The Living World Question 4
Assertion : Coacervates are believed to be the precursors of life. Reason : Coacervates were self-duplicating aggregates of proteins surrounded by lipid molecules
Options:
A) If both the assertion and the reason are true and the reason is a correct explanation of the assertion
B) If both the assertion and reason are true but the reason is not a correct explanation of the assertion
C) If the assertion is true but the reason is false
D) If both the assertion and reason are false
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Answer:
Correct Answer: C
Solution:
Oparin and Sydney Fox held that large organic molecules synthesised abiotically on primitive earth and formed large colloidal aggregates due to intermolecular attraction.
These colloidal particles were called coacervates.
In coacervates, lipid molecules are not joined end to end but rather form micelles or bilayers depending on the conditions.
This represents a single lipid membrane.
Coacervates divide by fission like bacteria.
BETA
