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End of Chapter Quiz
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1
While it is still unknown how the first cells formed, scientists suspect that the first active biological macromolecule was
A)protein.
B)DNA.
C)RNA.
D)carbohydrates.
2
Bacteria
A)are prokaryotic.
B)have been on the earth for at least 2.5 billion years.
C)are the most abundant life form on earth.
D)All answers are correct.
3
Some species of prokaryotes are able to obtain energy by oxidizing inorganic chemicals. These species are also called
A)photoautotrophs.
B)chemoautotrophs.
C)photoheterotrophs.
D)chemoheterotrophs.
4
Viruses are
A)protein coats that contain DNA or RNA.
B)simple eukaryotic cells.
C)simple prokaryotic cells.
D)alive.
5
One piece of supporting evidence for the endosymbiotic theory for the origin of eukaryotic cells is that
A)eukaryotic cells have internal membranes.
B)mitochondria and chloroplasts have their own DNA.
C)Golgi bodies and endoplasmic reticulum represent ancestral cells.
D)the nuclear membrane could only have come from another cell.
6
Many protists survive unfavorable environmental conditions by forming
A)gametes.
B)zygotes.
C)cysts.
D)aggregations.
7
The main problem in classifying protists is that
A)all have a common lifestyle.
B)all are unicellular.
C)all are photoautotrophic.
D)any eukaryotic organism that is not plant, animal, or fungi is a protist.
8
The main body of a fungus is the
A)hyphae.
B)septa.
C)mushroom.
D)mycelium.
9
Fungi reproduce
A)both sexually and asexually.
B)sexually only.
C)asexually only.
D)by fragmentation.
10
Lichens are mutualistic associations between
A)plants and fungi.
B)algae and fungi.
C)termites and fungi.
D)coral and fungi.





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