Glencoe Biology

Section 2: The Origin of Life

Self-Check Quizzes

1.
What theory suggests the important relationship between ancestral eukaryotic and prokaryotic cells?
A)spontaneous generation
B)early cellular theory
C)prokaryotic theory
D)endosymbiont theory
2.
What modern cells do scientists believe to be close relatives of the Earth's first cells?
A)archea
B)amino acids
C)eukaryotes
D)proteins
3.
This shows that ____ helped amino acids stabilize.

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A)oxygen
B)proteins
C)clay
D)hydrogen
4.
Early cyanobacteria produced ____ which eventually formed the ozone layer.
A)hydrogen
B)proteins
C)carbon dioxide
D)oxygen
5.
Many scientists consider ____ to be the first cellular coding system.
A)meiosis
B)photosynthesis
C)RNA
D)complex proteins
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