Question 1

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

Accepted Answer

A)  archaea 
B)  protozoans 
C)  ciliates 
D)  dinoflagellates 
E)  euglenoids 
A)  archaea 
B)  protozoans 
C)  ciliates 
D)  dinoflagellates 
E)  euglenoids

Question 2

Where does sexual reproduction of malaria-causing Plasmodium take place?

Accepted Answer

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

Question 3

Match the following letters with the number with which they best correspond.
a.amoebas
b.apicomplexan
c.dinoflagellates
d.green algae
e.red algae
f.bacteriophage
-multicelled protist able to live in deep ocean water

Accepted Answer

The answer of Match the following letters with the number...

Question 4

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

Question 5

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 6

Match the following letters with the number with which they best correspond.
 a.protist
b.prokaryote
c.photoautotroph
d.pathogen
e.protocell
f.halophile
g.antibiotic
-most likely the first eukaryotes

Accepted Answer

The answer of Match the following letters with the number...

Question 7

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 8

Organelles like the endoplasmic reticulum most likely arose by a process most closely related to

Accepted Answer

A)  endosymbiosis. 
B)  endocytosis. 
C)  exocytosis. 
D)  cell fractionation. 
E)  binary fission. 
A)  endosymbiosis. 
B)  endocytosis. 
C)  exocytosis. 
D)  cell fractionation. 
E)  binary fission.

Question 9

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 10

Why is it unlikely that DNA was NOT the first self-replicating molecule of life?

Accepted Answer

A)  nitrogen is essential for constructing DNA and there was no nitrogen on early Earth 
B)  DNA is hyper-sensitive to oxygen and would have disassembled quickly in its presence 
C)  DNA requires proteins like DNA polymerase for assembly so it doesn't truly "self-replicate" 
D)  it must have RNA to self-replicate and RNA evolved much later in life's history 
E)  more than one of these is correct 
A)  nitrogen is essential for constructing DNA and there was no nitrogen on early Earth 
B)  DNA is hyper-sensitive to oxygen and would have disassembled quickly in its presence 
C)  DNA requires proteins like DNA polymerase for assembly so it doesn't truly "self-replicate" 
D)  it must have RNA to self-replicate and RNA evolved much later in life's history 
E)  more than one of these is correct

Question 11

Classification.Answer the questions using the five groups of prokaryotes listed below.
 a.halophiles
b.cyanobacteria
c.thermophiles
d.bacteria
e.methanogens
-These bacteria live in temperatures that are not usually conducive to life.

Accepted Answer

The answer of Classification.Answer the questions using the five groups...

Question 12

Photosynthesis first occurs on Earth by about ___ years ago.

Accepted Answer

A)  4.6 billion 
B)  3.5 billion 
C)  2.7 billion 
D)  1.1 billion 
E)  0.5 billion 
A)  4.6 billion 
B)  3.5 billion 
C)  2.7 billion 
D)  1.1 billion 
E)  0.5 billion

Question 13

Four of the five answers listed below are at least characteristics of some of the bacteria.Select the EXCEPTION.

Accepted Answer

A)  heterotrophy 
B)  photosynthesis 
C)  chemosynthesis 
D)  Multi-cellular 
E)  no nucleus 
A)  heterotrophy 
B)  photosynthesis 
C)  chemosynthesis 
D)  Multi-cellular 
E)  no nucleus

Question 14

A protist cell may contain

Accepted Answer

A)  a nucleus. 
B)  a cytoskeleton. 
C)  more than one chromosome. 
D)  Golgi bodies. 
E)  all of these. 
A)  a nucleus. 
B)  a cytoskeleton. 
C)  more than one chromosome. 
D)  Golgi bodies. 
E)  all of these.

Question 15

The first organisms

Accepted Answer

A)  had to be aerobic. 
B)  were pathogenic. 
C)  had to be anaerobic. 
D)  were heterotrophs. 
E)  were multi-celled. 
A)  had to be aerobic. 
B)  were pathogenic. 
C)  had to be anaerobic. 
D)  were heterotrophs. 
E)  were multi-celled.

Question 16

Why is DNA a more stable genome repository than RNA?

Accepted Answer

A)  uracil needed for RNA synthesis is far less common than thymine needed for DNA synthesis 
B)  RNA breaks more easily and accumulates more mutations than DNA does 
C)  DNA is easier to build from its component molecules 
D)  DNA requires less energy to construct than RNA does 
E)  RNA molecules are longer than DNA molecules and thus more prone to snapping 
A)  uracil needed for RNA synthesis is far less common than thymine needed for DNA synthesis 
B)  RNA breaks more easily and accumulates more mutations than DNA does 
C)  DNA is easier to build from its component molecules 
D)  DNA requires less energy to construct than RNA does 
E)  RNA molecules are longer than DNA molecules and thus more prone to snapping

Question 17

Which of the following scientists demonstrated for the first time that molecules of life could have come from nonliving entities (gases,water,and spark discharge)?

Accepted Answer

A)  Crick and Orgel 
B)  Wallace 
C)  Miller and Urey 
D)  Chargaff 
E)  Cuvier and Lyell 
A)  Crick and Orgel 
B)  Wallace 
C)  Miller and Urey 
D)  Chargaff 
E)  Cuvier and Lyell

Question 18

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?

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 19

Match the following letters with the number with which they best correspond.
a.amoebas
b.apicomplexan
c.dinoflagellates
d.green algae
e.red algae
f.bacteriophage
-share a common ancestor with green plants

Accepted Answer

The answer of Match the following letters with the number...

Question 20

Place the following hypothesized events of the beginning of life in their correct order

Accepted Answer

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.. 
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..

Exam 13: Early Life Forms and the Viruses

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

Where does sexual reproduction of malaria-causing Plasmodium take place?

Match the following letters with the number with which they best correspond. a.amoebas b.apicomplexan c.dinoflagellates d.green algae e.red algae f.bacteriophage -multicelled protist able to live in deep ocean water

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

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

Match the following letters with the number with which they best correspond. a.protist b.prokaryote c.photoautotroph d.pathogen e.protocell f.halophile g.antibiotic -most likely the first eukaryotes

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?

Organelles like the endoplasmic reticulum most likely arose by a process most closely related to

HIV contains ____ as its genetic material.

Why is it unlikely that DNA was NOT the first self-replicating molecule of life?

Classification.Answer the questions using the five groups of prokaryotes listed below. a.halophiles b.cyanobacteria c.thermophiles d.bacteria e.methanogens -These bacteria live in temperatures that are not usually conducive to life.

Photosynthesis first occurs on Earth by about ___ years ago.

Four of the five answers listed below are at least characteristics of some of the bacteria.Select the EXCEPTION.

A protist cell may contain

The first organisms

Why is DNA a more stable genome repository than RNA?

Which of the following scientists demonstrated for the first time that molecules of life could have come from nonliving entities (gases,water,and spark discharge)?

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?

Match the following letters with the number with which they best correspond. a.amoebas b.apicomplexan c.dinoflagellates d.green algae e.red algae f.bacteriophage -share a common ancestor with green plants

Place the following hypothesized events of the beginning of life in their correct order

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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