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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