Question 1

Which of the following elements was NOT included in the Urey-Miller experiments?

Accepted Answer

A)  oxygen 
B)  methane 
C)  ammonia 
D)  water vapor 
E)  electrical sparks 
A)  oxygen 
B)  methane 
C)  ammonia 
D)  water vapor 
E)  electrical sparks A

Question 2

Examine the figure above and answer the following question(s). In figure "A", what is being injected into the host cell?

Accepted Answer

A)  enzymes 
B)  the protein coat 
C)  nucleic acids 
D)  ribosomes 
E)  more than one of these 
A)  enzymes 
B)  the protein coat 
C)  nucleic acids 
D)  ribosomes 
E)  more than one of these C

Question 3

Eukaryotes are closer genetically to bacteria in the process of

Accepted Answer

A)  DNA replication 
B)  RNA transcription 
C)  RNA translation 
D)  membrane formation. 
E)  more than one of these. 
A)  DNA replication 
B)  RNA transcription 
C)  RNA translation 
D)  membrane formation. 
E)  more than one of these. D

Question 4

Examine the figure above and answer the following question(s). The pathway on the left is named for what is happening in the figure labeled with letter ____.

Accepted Answer

A)  A 
B)  B 
C)  C 
D)  D 
E)  E 
A)  A 
B)  B 
C)  C 
D)  D 
E)  E

Question 5

Which of the following diseases are NOT a bacterial caused sexually transmitted disease (STD)?

Accepted Answer

A)  chlamydia 
B)  gonorrhea 
C)  syphilis 
D)  genital herpes 
E)  all of these ARE bacterial caused STDs 
A)  chlamydia 
B)  gonorrhea 
C)  syphilis 
D)  genital herpes 
E)  all of these ARE bacterial caused STDs

Question 6

What evidence was used to determine that the last universal common ancestor of all life lived about 4.3 million years ago?

Accepted Answer

A)  fossils of prokaryotic cells 
B)  genome comparisons between all living things 
C)  life found in meteorites 
D)  fossil cladistic analysis 
E)  more than one of these 
A)  fossils of prokaryotic cells 
B)  genome comparisons between all living things 
C)  life found in meteorites 
D)  fossil cladistic analysis 
E)  more than one of these

Question 7

Metagenomic studies of prokaryotes have revealed that

Accepted Answer

A)  there is very litle diversity among bacteria. 
B)  archaea are more closely related to bacteria than to eukaryotes. 
C)  bacteria and archaea are essentially the same organisms. 
D)  most archaea evolved from viruses. 
E)  none of these things were revealed by metagenomic studies. 
A)  there is very litle diversity among bacteria. 
B)  archaea are more closely related to bacteria than to eukaryotes. 
C)  bacteria and archaea are essentially the same organisms. 
D)  most archaea evolved from viruses. 
E)  none of these things were revealed by metagenomic studies.

Question 8

Which of the following is an HIV enzyme essential for its successful replication in a host cell?

Accepted Answer

A)  reverse transcriptase 
B)  RNA polymerase 
C)  DNA polymerase 
D)  protease 
E)  ligase 
A)  reverse transcriptase 
B)  RNA polymerase 
C)  DNA polymerase 
D)  protease 
E)  ligase

Question 9

Algins, compounds used in the food industry, are obtained from

Accepted Answer

A)  foraminiferans. 
B)  brown algae. 
C)  dinoflagellates. 
D)  red algae. 
E)  green algae. 
A)  foraminiferans. 
B)  brown algae. 
C)  dinoflagellates. 
D)  red algae. 
E)  green algae.

Question 10

Which of the following protists may cause dysentery after drinking contaminated water?

Accepted Answer

A)  dinoflagellates 
B)  apicomplexans 
C)  amoebas 
D)  ciliates 
E)  water molds 
A)  dinoflagellates 
B)  apicomplexans 
C)  amoebas 
D)  ciliates 
E)  water molds

Question 11

Place the following hypothesized events of the beginning of life in their correct order
I. organic polymers form
II. inorganic molecules form
III. DNA-based cells form
IV. organic monomers form
V. protocells in the RNA world form
A) I, III, V, IV, II
B) II, I, IV, V, III
C) II, IV, I, V, III
D) IV, I, II, III, V
E) II, I, IV, V, III

Accepted Answer

The answer of Place the following hypothesized events of the...

Question 12

Experiments like those performed by Stanley Miller in the 1850s demonstrated

Accepted Answer

A)  that DNA forms readily and produces itself. 
B)  that organic compounds required for life can form under artificial conditions. 
C)  that prokaryotic cells can form under artificial conditions. 
D)  that meteorites contain the building blocks of life. 
E)  that reactions in hydrothermal vents synthesis organic molecules. 
A)  that DNA forms readily and produces itself. 
B)  that organic compounds required for life can form under artificial conditions. 
C)  that prokaryotic cells can form under artificial conditions. 
D)  that meteorites contain the building blocks of life. 
E)  that reactions in hydrothermal vents synthesis organic molecules.

Question 13

The great adaptive radiation that resulted in all of the major animal lineages occurred in the ___ period.

Accepted Answer

A)  Cretaceous 
B)  Devonian 
C)  Jurassic 
D)  Ordovician 
E)  Cambrian 
A)  Cretaceous 
B)  Devonian 
C)  Jurassic 
D)  Ordovician 
E)  Cambrian

Question 14

How might drugs that interfere with the functioning of the apicoplast in the malaria-causing protist probably not be harmful to humans?

Accepted Answer

A)  the drugs would kill the protist before it infected a human 
B)  the drug would prevent the protist from photosynthesizing which is its energy source 
C)  humans never evolved photosynthetic organelles and thus would be unaffected by a drug targeting that type of organelle 
D)  humans already have resistance to apicoplast drugs 
E)  any drug that would prevent the functioning of apicoplasts would not work in a human system 
A)  the drugs would kill the protist before it infected a human 
B)  the drug would prevent the protist from photosynthesizing which is its energy source 
C)  humans never evolved photosynthetic organelles and thus would be unaffected by a drug targeting that type of organelle 
D)  humans already have resistance to apicoplast drugs 
E)  any drug that would prevent the functioning of apicoplasts would not work in a human system

Question 15

The earth and other planets of the solar system were formed about ____ billion years ago.

Accepted Answer

A)  3.8 
B)  4.6 
C)  3.0 
D)  2.9 
E)  5.1 
A)  3.8 
B)  4.6 
C)  3.0 
D)  2.9 
E)  5.1

Question 16

Some archaea are extreme halophiles. This means that they thrive in ___ conditions.

Accepted Answer

A)  high temperature 
B)  low temperature 
C)  high sulfur 
D)  high salt 
E)  high oxygen 
A)  high temperature 
B)  low temperature 
C)  high sulfur 
D)  high salt 
E)  high oxygen

Question 17

Which of the following eukaryotic organelles are believed to have existed as independent prokaryotes in the past?

Accepted Answer

A)  peroxisomes 
B)  chloroplasts 
C)  mitochondria 
D)  lysosomes 
E)  more than one of these 
A)  peroxisomes 
B)  chloroplasts 
C)  mitochondria 
D)  lysosomes 
E)  more than one of these

Question 18

Which of the following elements may have been the ancestors of cellular life?

Accepted Answer

A)  circular RNA 
B)  prokaryotic cells 
C)  pseudocells 
D)  lipid globules 
E)  protocells 
A)  circular RNA 
B)  prokaryotic cells 
C)  pseudocells 
D)  lipid globules 
E)  protocells

Question 19

According to scientific evidence, early life could NOT form or persist in the presence of

Accepted Answer

A)  methane gas. 
B)  hydrogen gas. 
C)  oxygen gas. 
D)  water vapor. 
E)  carbon dioxide. 
A)  methane gas. 
B)  hydrogen gas. 
C)  oxygen gas. 
D)  water vapor. 
E)  carbon dioxide.

Question 20

Which of the following human cells are hosts to HIV?

Accepted Answer

A)  red blood cells 
B)  nerve cells 
C)  white blood cells 
D)  muscle cells 
E)  more than one of these are host cells to HIV 
A)  red blood cells 
B)  nerve cells 
C)  white blood cells 
D)  muscle cells 
E)  more than one of these are host cells to HIV

Exam 13: Early Life Forms and the Viruses

Which of the following elements was NOT included in the Urey-Miller experiments?

Examine the figure above and answer the following question(s). In figure "A", what is being injected into the host cell?

Eukaryotes are closer genetically to bacteria in the process of

Examine the figure above and answer the following question(s). The pathway on the left is named for what is happening in the figure labeled with letter ____.

Which of the following diseases are NOT a bacterial caused sexually transmitted disease (STD)?

What evidence was used to determine that the last universal common ancestor of all life lived about 4.3 million years ago?

Metagenomic studies of prokaryotes have revealed that

Which of the following is an HIV enzyme essential for its successful replication in a host cell?

Algins, compounds used in the food industry, are obtained from

Which of the following protists may cause dysentery after drinking contaminated water?

Experiments like those performed by Stanley Miller in the 1850s demonstrated

The great adaptive radiation that resulted in all of the major animal lineages occurred in the ___ period.

How might drugs that interfere with the functioning of the apicoplast in the malaria-causing protist probably not be harmful to humans?

The earth and other planets of the solar system were formed about ____ billion years ago.

Some archaea are extreme halophiles. This means that they thrive in ___ conditions.

Which of the following eukaryotic organelles are believed to have existed as independent prokaryotes in the past?

Which of the following elements may have been the ancestors of cellular life?

According to scientific evidence, early life could NOT form or persist in the presence of

Which of the following human cells are hosts to HIV?

Invitation to Biology

Molecules of Life

Cell Structure

Energy and Metabolism

Capturing and Releasing Energy

Dna Structure and Function

Gene Expression and Control

How Cells Reproduce

Patterns of Inheritance

Biotechnology

Evidence of Evolution

Processes of Evolution

Plants and Fungi

Animal Evolution

Population Ecology

Communities and Ecosystems

The Biosphere and Human Effects

Animal Tissues and Organs

How Animals Move

Circulation and Respiration

Immunity

Digestion and Excretion

Neural Control and the Senses

Endocrine Control

Reproduction and Development

Plant Form and Function

Plant Reproduction and Development

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