Question 1

What was the basic problem with the Miller-Urey early atmosphere experiments?

Accepted Answer

A)  there was no lightning on the early Earth 
B)  there was no hydrogen gas in Earth's early atmosphere 
C)  they used oxygen gas which was not present in Earth's early atmosphere 
D)  the mixture of gases they used was not representative of Earth's early atmosphere 
E)  more than one of these is correct 
A)  there was no lightning on the early Earth 
B)  there was no hydrogen gas in Earth's early atmosphere 
C)  they used oxygen gas which was not present in Earth's early atmosphere 
D)  the mixture of gases they used was not representative of Earth's early atmosphere 
E)  more than one of these is correct

Question 2

Which of the following protists are able to produce bioluminescent molecules?

Accepted Answer

A)  foraminiferans 
B)  apicomplexans 
C)  ciliates 
D)  dinoflagellates 
E)  euglenoids 
A)  foraminiferans 
B)  apicomplexans 
C)  ciliates 
D)  dinoflagellates 
E)  euglenoids

Question 3

Increase in the population of photosynthetic bacteria using the oxygen-releasing pathway led to an increase in the oxygen levels in the seas and air. What was (were) the major consequence(s) of that change?
I. aerobic respiration became the major mode of life
II. all anaerobic organisms went extinct
III. formation of ozone layer

Accepted Answer

A)  I only 
B)  II only 
C)  I and II 
D)  I and III 
E)  I, II, and III 
A)  I only 
B)  II only 
C)  I and II 
D)  I and III 
E)  I, II, and III

Question 4

Selecting the Exception Four of the five answers listed below are members of the same group. Select the EXCEPTION.

Accepted Answer

A)  amoeba 
B)  clostridium 
C)  euglena 
D)  water molds 
E)  ciliates 
A)  amoeba 
B)  clostridium 
C)  euglena 
D)  water molds 
E)  ciliates

Question 5

Which of the following does NOT belong to the protists?

Accepted Answer

A)  archaea 
B)  slime molds 
C)  radiolarians 
D)  dinoflagellates 
E)  euglenoids 
A)  archaea 
B)  slime molds 
C)  radiolarians 
D)  dinoflagellates 
E)  euglenoids

Question 6

Where do malaria-causing Plasmodium merozoites develop into gametocytes?

Accepted Answer

A)  in the gut of a female mosquito 
B)  in the gut of a male mosquito 
C)  in the mosquito salivary glands 
D)  inside white blood cells 
E)  inside red blood cells 
A)  in the gut of a female mosquito 
B)  in the gut of a male mosquito 
C)  in the mosquito salivary glands 
D)  inside white blood cells 
E)  inside red blood cells

Question 7

Which of the following components was NOT a significant part of the earth's early atmosphere?

Accepted Answer

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

Question 8

HIV contains ____ as its genetic material.

Accepted Answer

A)  single stranded DNA 
B)  double stranded DNA 
C)  double stranded RNA 
D)  single stranded RNA 
E)  both DNA and RNA 
A)  single stranded DNA 
B)  double stranded DNA 
C)  double stranded RNA 
D)  single stranded RNA 
E)  both DNA and RNA

Question 9

Which of the following bacteria causes cholera?

Accepted Answer

A)  Streptococcus 
B)  Salmonella 
C)  Staphylococcus 
D)  Cyanobacteium 
E)  Vibrio 
A)  Streptococcus 
B)  Salmonella 
C)  Staphylococcus 
D)  Cyanobacteium 
E)  Vibrio

Question 10

Which of the following elements is (are) likely to provide hints about earth's early atmosphere?

Accepted Answer

A)  ancient rocks 
B)  volcanic eruptions 
C)  ancient rocks and volcanic eruptions 
D)  meteorites and ancient rocks 
E)  meteorites, volcanic eruptions, and ancient rocks 
A)  ancient rocks 
B)  volcanic eruptions 
C)  ancient rocks and volcanic eruptions 
D)  meteorites and ancient rocks 
E)  meteorites, volcanic eruptions, and ancient rocks

Question 11

Which of the following obtain both energy and carbon from organic compounds?

Accepted Answer

A)  photoautotrophs 
B)  chemoautotrophs 
C)  photoheterotrophs 
D)  chemoheterotrophs 
E)  more than one of these 
A)  photoautotrophs 
B)  chemoautotrophs 
C)  photoheterotrophs 
D)  chemoheterotrophs 
E)  more than one of these

Question 12

Until which period of time did scientists think that molecules of life could only be made inside living organisms?

Accepted Answer

A)  early 1500s 
B)  late 1500s 
C)  early 1600s 
D)  late 1600s 
E)  early 1800s 
A)  early 1500s 
B)  late 1500s 
C)  early 1600s 
D)  late 1600s 
E)  early 1800s

Question 13

According to one hypothesis, clay may have played an essential role in the formation of complex molecules of life. How might clay have participated in that process?

Accepted Answer

A)  by attracting positively charged molecules that became concentrated 
B)  by acting as an enzyme to catalyze dehydration synthesis reactions 
C)  by transferring electrons from one molecule to another 
D)  by acting as a template for RNA molecule production 
E)  by gathering from the sun energy necessary to power reactions of synthesis of complex molecules 
A)  by attracting positively charged molecules that became concentrated 
B)  by acting as an enzyme to catalyze dehydration synthesis reactions 
C)  by transferring electrons from one molecule to another 
D)  by acting as a template for RNA molecule production 
E)  by gathering from the sun energy necessary to power reactions of synthesis of complex molecules

Question 14

Which of the following is NOT true of protists?

Accepted Answer

A)  They may reproduce sexually. 
B)  Most have mitochondria. 
C)  Some reproduce asexually by binary fission. 
D)  Most protists are unicellular organisms, but some are multicelled species. 
E)  Some protists are photoautotrophs. 
A)  They may reproduce sexually. 
B)  Most have mitochondria. 
C)  Some reproduce asexually by binary fission. 
D)  Most protists are unicellular organisms, but some are multicelled species. 
E)  Some protists are photoautotrophs.

Question 15

Red algae can survive in deeper water because of

Accepted Answer

A)  phycobilins. 
B)  holdfasts. 
C)  chlorophyll a . 
D)  a stonelike cell wall. 
E)  their preference for freshwater habitat. 
A)  phycobilins. 
B)  holdfasts. 
C)  chlorophyll a . 
D)  a stonelike cell wall. 
E)  their preference for freshwater habitat.

Question 16

Flagellated protozoans possess a layer of elastic proteins just beneath the plasma membrane called the

Accepted Answer

A)  pellicle. 
B)  cilium. 
C)  capsule. 
D)  pillus. 
E)  flagellum. 
A)  pellicle. 
B)  cilium. 
C)  capsule. 
D)  pillus. 
E)  flagellum.

Question 17

The eukaryotes first appear in the fossil record about ____ million years ago.

Accepted Answer

A)  1.8 
B)  2.2 
C)  2.7 
D)  3.6 
E)  1.5 
A)  1.8 
B)  2.2 
C)  2.7 
D)  3.6 
E)  1.5

Question 18

Which of the following describes the earliest protist found in the fossil record?

Accepted Answer

A)  single-celled, free-swimming, asexual reproduction, red alga 
B)  multi-celled, stationary, asexual reproduction, red alga 
C)  multi-celled, free swimming, sexual reproduction, red alga 
D)  multi-celled, stationary, sexual reproduction, red alga 
E)  single-celled, stationary, asexual reproduction, red alga 
A)  single-celled, free-swimming, asexual reproduction, red alga 
B)  multi-celled, stationary, asexual reproduction, red alga 
C)  multi-celled, free swimming, sexual reproduction, red alga 
D)  multi-celled, stationary, sexual reproduction, red alga 
E)  single-celled, stationary, asexual reproduction, red alga

Question 19

Bacteria

Accepted Answer

A)  are diploid organisms. 
B)  produce gametes. 
C)  have a life cycle that varies between unicellular stage and multicellular stage. 
D)  have a single circular chromosome. 
E)  lack either DNA or RNA. 
A)  are diploid organisms. 
B)  produce gametes. 
C)  have a life cycle that varies between unicellular stage and multicellular stage. 
D)  have a single circular chromosome. 
E)  lack either DNA or RNA.

Question 20

Which of the following is FALSE?

Accepted Answer

A)  The outer coats of all viruses have the same protein structure. 
B)  The virus uses either DNA or RNA at its core but not both. 
C)  Viruses can be replicated only after they enter a living cell. 
D)  Most viruses have a protein coat or covering. 
E)  A virus may remain latent for a period of time before causing infection. 
A)  The outer coats of all viruses have the same protein structure. 
B)  The virus uses either DNA or RNA at its core but not both. 
C)  Viruses can be replicated only after they enter a living cell. 
D)  Most viruses have a protein coat or covering. 
E)  A virus may remain latent for a period of time before causing infection.

Exam 13: Early Life Forms and the Viruses

What was the basic problem with the Miller-Urey early atmosphere experiments?

Which of the following protists are able to produce bioluminescent molecules?

Selecting the Exception Four of the five answers listed below are members of the same group. Select the EXCEPTION.

Which of the following does NOT belong to the protists?

Where do malaria-causing Plasmodium merozoites develop into gametocytes?

Which of the following components was NOT a significant part of the earth's early atmosphere?

HIV contains ____ as its genetic material.

Which of the following bacteria causes cholera?

Which of the following elements is (are) likely to provide hints about earth's early atmosphere?

Which of the following obtain both energy and carbon from organic compounds?

Until which period of time did scientists think that molecules of life could only be made inside living organisms?

According to one hypothesis, clay may have played an essential role in the formation of complex molecules of life. How might clay have participated in that process?

Which of the following is NOT true of protists?

Red algae can survive in deeper water because of

Flagellated protozoans possess a layer of elastic proteins just beneath the plasma membrane called the

The eukaryotes first appear in the fossil record about ____ million years ago.

Which of the following describes the earliest protist found in the fossil record?

Bacteria

Which of the following is FALSE?

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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