Bio 152 exam 1 ACTUAL UPDATED Exam
Questions and CORRECT Answers
When did the earth form?
A. Approximately 11-12 BYA
B. Approximately 4.5 BYA
C. Approximately 1.0 - 1.5 BYA - CORRECT ANSWER -B
When did the first life appear on Earth?
A. Approximately 10-12 BYA
B. Approximately 3.5-4 BYA
C. Approximately 1.0-1.5 BYA - CORRECT ANSWER -B
When did oxygenic photosynthesis first evolve?
A. Approximately 10 BYA
B. Approximately 4.0 BYA
C. Approximately 2.5 BYA - CORRECT ANSWER -C
When did eukaryotes first appear?
A. Approximately 4.5-5.0 BYA
B. Approximately 1.5-2.0 BYA
C. Approximately .5 BYA - CORRECT ANSWER -B
One micrometer is equal to...
,A. 10^-6 meters
B. 10^-3 meters
C. 10^-6 millimeters
D. 10^-3 millimeters
E. Both A and D - CORRECT ANSWER -E
A spherical cell of which diameter will have a larger surface-to-volume ratio?
A. 1 micrometer
B. 10 micrometers
C. 50 micrometers - CORRECT ANSWER -A
The typical size of a prokaryotic cell is...
A. 1 micrometer
B. 50 micrometers
C. 500 micrometers - CORRECT ANSWER -A
Prokaryotes are characterized by...
A. The presence of a membrane bound nucleus (containing the chromosomal DNA)
B. The absence of a membrane bound nucleus
C. Relatively small cell size
D. Both B and C - CORRECT ANSWER -D
Bacteria are...
, A. Prokaryotes
B. Eukaryotes
C. Archaea - CORRECT ANSWER -A
TRUE OR FALSE
In a phylogenetic tree, a group is called "monophyletic" when it includes a common ancestor, all
of its descendants, and no other organisms. - CORRECT ANSWER - TRUE
According to the "classical" phylogenetic tree, the main "domains" of life are...
A. Prokaryotes and Eukaryotes
B. Bacteria and Eukaryotes
C. Bacteria, Archaea, and Eukaryotes - CORRECT ANSWER -C
According to the recently proposed new phylogenetic tree, the "major groups" of life are...
A. Prokaryotes and Eukaryotes
B. Bacteria and Eukaryotes
C. Bacteria and Archaea - CORRECT ANSWER -C
The genetic material of living organisms is...
A. DNA
B. RNA - CORRECT ANSWER -A
Consider a bacterium called Bacillus subtilis. What is represented by the two components of this
name?
Questions and CORRECT Answers
When did the earth form?
A. Approximately 11-12 BYA
B. Approximately 4.5 BYA
C. Approximately 1.0 - 1.5 BYA - CORRECT ANSWER -B
When did the first life appear on Earth?
A. Approximately 10-12 BYA
B. Approximately 3.5-4 BYA
C. Approximately 1.0-1.5 BYA - CORRECT ANSWER -B
When did oxygenic photosynthesis first evolve?
A. Approximately 10 BYA
B. Approximately 4.0 BYA
C. Approximately 2.5 BYA - CORRECT ANSWER -C
When did eukaryotes first appear?
A. Approximately 4.5-5.0 BYA
B. Approximately 1.5-2.0 BYA
C. Approximately .5 BYA - CORRECT ANSWER -B
One micrometer is equal to...
,A. 10^-6 meters
B. 10^-3 meters
C. 10^-6 millimeters
D. 10^-3 millimeters
E. Both A and D - CORRECT ANSWER -E
A spherical cell of which diameter will have a larger surface-to-volume ratio?
A. 1 micrometer
B. 10 micrometers
C. 50 micrometers - CORRECT ANSWER -A
The typical size of a prokaryotic cell is...
A. 1 micrometer
B. 50 micrometers
C. 500 micrometers - CORRECT ANSWER -A
Prokaryotes are characterized by...
A. The presence of a membrane bound nucleus (containing the chromosomal DNA)
B. The absence of a membrane bound nucleus
C. Relatively small cell size
D. Both B and C - CORRECT ANSWER -D
Bacteria are...
, A. Prokaryotes
B. Eukaryotes
C. Archaea - CORRECT ANSWER -A
TRUE OR FALSE
In a phylogenetic tree, a group is called "monophyletic" when it includes a common ancestor, all
of its descendants, and no other organisms. - CORRECT ANSWER - TRUE
According to the "classical" phylogenetic tree, the main "domains" of life are...
A. Prokaryotes and Eukaryotes
B. Bacteria and Eukaryotes
C. Bacteria, Archaea, and Eukaryotes - CORRECT ANSWER -C
According to the recently proposed new phylogenetic tree, the "major groups" of life are...
A. Prokaryotes and Eukaryotes
B. Bacteria and Eukaryotes
C. Bacteria and Archaea - CORRECT ANSWER -C
The genetic material of living organisms is...
A. DNA
B. RNA - CORRECT ANSWER -A
Consider a bacterium called Bacillus subtilis. What is represented by the two components of this
name?
