Question 1

What roles do atmospheric gases have in photosynthesis? Select the TWO answers that are correct.

Accepted Answer

A)  Oxygen is produced from water during the light-gathering phase of photosynthesis. 
B)  Carbon dioxide is from glucose during the light-gathering phase of photosynthesis. 
C)  Nitrogen is a reactant in photosynthesis that generates chlorophyll molecules. 
D)  Nitrogen is produced during the synthesis phase of photosynthesis when chlorophyll reacts with water. 
E)  Carbon dioxide is a reactant for photosynthesis that provides the carbon in glucose. 
A)  Oxygen is produced from water during the light-gathering phase of photosynthesis. 
B)  Carbon dioxide is from glucose during the light-gathering phase of photosynthesis. 
C)  Nitrogen is a reactant in photosynthesis that generates chlorophyll molecules. 
D)  Nitrogen is produced during the synthesis phase of photosynthesis when chlorophyll reacts with water. 
E)  Carbon dioxide is a reactant for photosynthesis that provides the carbon in glucose.

Question 2

Select the correct sequence of events in the water cycle.

Accepted Answer

A)  evaporation,soil absorption,creek,river,lake,precipitation,cloud formation 
B)  river,lake,groundwater,aquifer,precipitation,evaporation,cloud formation 
C)  evaporation,cloud formation,precipitation,groundwater,ocean,soil absorption 
D)  precipitation,soil absorption,aquifer,ocean,evaporation,cloud formation 
E)  cloud formation,evaporation,ocean,precipitation,soil absorption,groundwater 
A)  evaporation,soil absorption,creek,river,lake,precipitation,cloud formation 
B)  river,lake,groundwater,aquifer,precipitation,evaporation,cloud formation 
C)  evaporation,cloud formation,precipitation,groundwater,ocean,soil absorption 
D)  precipitation,soil absorption,aquifer,ocean,evaporation,cloud formation 
E)  cloud formation,evaporation,ocean,precipitation,soil absorption,groundwater

Question 3

Select the statements that correctly describe hydroelectric power.

Accepted Answer

A)  It relies on the conversion of kinetic energy to potential energy. 
B)  Its plants have short lifespans that require immense maintenance. 
C)  It destroys habitats and impacts fish populations. 
D)  It shows little potential for meeting high energy demands. 
E)  Its plants produce no harmful emissions. 
A)  It relies on the conversion of kinetic energy to potential energy. 
B)  Its plants have short lifespans that require immense maintenance. 
C)  It destroys habitats and impacts fish populations. 
D)  It shows little potential for meeting high energy demands. 
E)  Its plants produce no harmful emissions.

Question 4

The taiga biome is characterized by evergreen trees,whereas the temperate forest biome is characterized by evergreens and trees that drop their leaves during the winter.Which of the following features accounts for these differences in plant life? Select the TWO answers that are correct.

Accepted Answer

A)  differences in amount of annual precipitation 
B)  distinct animal species inhabiting each biome 
C)  variability in human activities within each 
D)  variation in temperature ranges 
E)  separation by geographic boundaries 
A)  differences in amount of annual precipitation 
B)  distinct animal species inhabiting each biome 
C)  variability in human activities within each 
D)  variation in temperature ranges 
E)  separation by geographic boundaries

Question 5

How long will it take for a quarter of the uranium-238 atoms in a rock to decay to lead-206?

Accepted Answer

A)  1.13 billion years 
B)  13.5 billion years 
C)  4.5 billion years 
D)  2.25 billion years 
E)  9 billion years 
A)  1.13 billion years 
B)  13.5 billion years 
C)  4.5 billion years 
D)  2.25 billion years 
E)  9 billion years

Question 6

What happens at the chimneys of the Lost City that provides clues about life on early Earth? Select the TWO answers that are correct.

Accepted Answer

A)  Bacteria are present that do not use DNA or RNA. 
B)  Bacteria thrive under extremely inhospitable conditions. 
C)  Complex organic compounds are produced from hydrogen gas and rock. 
D)  Archaea extract carbon from inorganic stone. 
E)  Simple organic compounds are made by abiotic processes. 
A)  Bacteria are present that do not use DNA or RNA. 
B)  Bacteria thrive under extremely inhospitable conditions. 
C)  Complex organic compounds are produced from hydrogen gas and rock. 
D)  Archaea extract carbon from inorganic stone. 
E)  Simple organic compounds are made by abiotic processes.

Question 7

Select the scenarios that describe an abiotic factor that is density independent.Select the TWO answers that are correct.

Accepted Answer

A)  A fire rages through the land,destroying many habitats. 
B)  Trees that provide food for moose die off from a parasite infestation. 
C)  Many inches of snow fall and cover the ground and trees. 
D)  A virus that targets moose spreads throughout the moose population. 
E)  An increasing wolf population requires more food to support its numbers. 
A)  A fire rages through the land,destroying many habitats. 
B)  Trees that provide food for moose die off from a parasite infestation. 
C)  Many inches of snow fall and cover the ground and trees. 
D)  A virus that targets moose spreads throughout the moose population. 
E)  An increasing wolf population requires more food to support its numbers.

Question 8

Which of the following biomes covers the greatest amount of Earth's surface?

Accepted Answer

A)  taiga 
B)  oceans 
C)  grassland 
D)  desert 
E)  tropical forest 
A)  taiga 
B)  oceans 
C)  grassland 
D)  desert 
E)  tropical forest

Question 9

Why are X-linked traits more commonly expressed in males than in females? Select the TWO answers that are correct.

Accepted Answer

A)  Males have only one X chromosome,whereas females have two. 
B)  Males have an X and a Y chromosome,and females have two Y chromosomes. 
C)  Females have two X chromosomes,so one can mask the effects of the other. 
D)  Males have two X chromosomes,making them twice as likely to have the phenotype. 
E)  Females have only one X chromosome,whereas males have two. 
A)  Males have only one X chromosome,whereas females have two. 
B)  Males have an X and a Y chromosome,and females have two Y chromosomes. 
C)  Females have two X chromosomes,so one can mask the effects of the other. 
D)  Males have two X chromosomes,making them twice as likely to have the phenotype. 
E)  Females have only one X chromosome,whereas males have two.

Question 10

What extreme conditions do microbes exist under at bleeding glacier sites? Select the TWO answers that are correct.

Accepted Answer

A)  high pressure 
B)  low carbon 
C)  high salt and iron 
D)  low oxygen 
E)  high temperature 
A)  high pressure 
B)  low carbon 
C)  high salt and iron 
D)  low oxygen 
E)  high temperature

Question 11

What phylogenetic evidence supports the conclusion that crocodiles are more closely related to birds than lizards?

Accepted Answer

A)  Crocodiles and birds share a more recent common ancestor than crocodiles and lizards. 
B)  Crocodiles,birds,and lizards have the same,most-recent common ancestor. 
C)  Birds and lizards share a more recent common ancestor than birds and crocodiles. 
D)  Birds and crocodiles do not share a common ancestor with lizards. 
E)  Lizards and crocodiles share a more recent common ancestor than lizards and birds. 
A)  Crocodiles and birds share a more recent common ancestor than crocodiles and lizards. 
B)  Crocodiles,birds,and lizards have the same,most-recent common ancestor. 
C)  Birds and lizards share a more recent common ancestor than birds and crocodiles. 
D)  Birds and crocodiles do not share a common ancestor with lizards. 
E)  Lizards and crocodiles share a more recent common ancestor than lizards and birds.

Question 12

Why do ferns not grow as tall as gymnosperms and angiosperms?

Accepted Answer

A)  Ferns lose water from vascular tissue easily,so plant height is limited by water availability and retention. 
B)  Ferns require water to undergo a complete life cycle and could not secure sufficient water as a taller plant. 
C)  Water is not efficiently transported or distributed throughout ferns to support taller growth. 
D)  The cell walls of fern vascular tissue are not sufficiently rigid to support the growth of taller ferns. 
E)  Ferns would be less likely to successfully reproduce because sperm would have a greater distance to swim to the egg. 
A)  Ferns lose water from vascular tissue easily,so plant height is limited by water availability and retention. 
B)  Ferns require water to undergo a complete life cycle and could not secure sufficient water as a taller plant. 
C)  Water is not efficiently transported or distributed throughout ferns to support taller growth. 
D)  The cell walls of fern vascular tissue are not sufficiently rigid to support the growth of taller ferns. 
E)  Ferns would be less likely to successfully reproduce because sperm would have a greater distance to swim to the egg.

Question 13

What role does water play in photosynthesis?

Accepted Answer

A)  Water behaves as a pigment in chloroplasts to absorb light. 
B)  Water acts as an electron acceptor in the formation of glucose. 
C)  Water reacts with oxygen to convert light energy to chemical energy. 
D)  Water is a product formed from the reaction of carbon dioxide with glucose. 
E)  Water provides hydrogen and electrons used in producing glucose. 
A)  Water behaves as a pigment in chloroplasts to absorb light. 
B)  Water acts as an electron acceptor in the formation of glucose. 
C)  Water reacts with oxygen to convert light energy to chemical energy. 
D)  Water is a product formed from the reaction of carbon dioxide with glucose. 
E)  Water provides hydrogen and electrons used in producing glucose.

Question 14

What functions do membrane proteins serve?

Accepted Answer

A)  synthesize phospholipids for the maintenance and growth of the cell membrane 
B)  transport nutrients into the cell that cannot otherwise cross the phospholipid bilayer 
C)  transport wastes out of the cell that cannot otherwise cross the cell membrane 
D)  prevent small,uncharged substances from crossing the phospholipid bilayer 
E)  synthesize DNA within the cell using raw materials found outside the cell 
A)  synthesize phospholipids for the maintenance and growth of the cell membrane 
B)  transport nutrients into the cell that cannot otherwise cross the phospholipid bilayer 
C)  transport wastes out of the cell that cannot otherwise cross the cell membrane 
D)  prevent small,uncharged substances from crossing the phospholipid bilayer 
E)  synthesize DNA within the cell using raw materials found outside the cell

Question 15

What is meant by codominance?

Accepted Answer

A)  The dominant allele in an X-linked trait is more likely to be expressed in males than in females. 
B)  Homozygotes have phenotypes in which the two forms of the allele are expressed separately. 
C)  The two alleles in a heterozygote each produce their own distinct phenotype equally. 
D)  Heterozygotes have a phenotype that is a mixture of the two alleles. 
E)  In homozygotes only the dominant form of the allele is expressed. 
A)  The dominant allele in an X-linked trait is more likely to be expressed in males than in females. 
B)  Homozygotes have phenotypes in which the two forms of the allele are expressed separately. 
C)  The two alleles in a heterozygote each produce their own distinct phenotype equally. 
D)  Heterozygotes have a phenotype that is a mixture of the two alleles. 
E)  In homozygotes only the dominant form of the allele is expressed.

Question 16

What evidence exists that humans evolved in Africa? Select the TWO answers that are correct.

Accepted Answer

A)  Humans today can trace their mtDNA to four female ancestors,all of whom lived in Africa many thousands of years ago. 
B)  Modern-day Africans have acquired half as many mtDNA mutations as compared to the mtDNA of people in the rest of the world. 
C)  Genetic diversity in nuclear DNA is lowest in African populations and increases in populations located farther away from Africa. 
D)  The oldest known fossils of modern humans,approximately 160,000 and 195,000 years old,were found in Ethiopia. 
E)  As shown by mtDNA studies,one branch of the human family tree consists of modern Africans,and the other branch consists of all other populations in the world. 
A)  Humans today can trace their mtDNA to four female ancestors,all of whom lived in Africa many thousands of years ago. 
B)  Modern-day Africans have acquired half as many mtDNA mutations as compared to the mtDNA of people in the rest of the world. 
C)  Genetic diversity in nuclear DNA is lowest in African populations and increases in populations located farther away from Africa. 
D)  The oldest known fossils of modern humans,approximately 160,000 and 195,000 years old,were found in Ethiopia. 
E)  As shown by mtDNA studies,one branch of the human family tree consists of modern Africans,and the other branch consists of all other populations in the world.

Question 17

Under aerobic conditions,when is pyruvate produced and consumed?

Accepted Answer

A)  It is produced in glycolysis and consumed in the citric acid cycle. 
B)  It is produced in the citric acid cycle and consumed in electron transport. 
C)  It is produced in electron transport and consumed in glycolysis. 
D)  It is produced in glycolysis and consumed in fermentation. 
E)  It is produced in the citric acid cycle and consumed in fermentation. 
A)  It is produced in glycolysis and consumed in the citric acid cycle. 
B)  It is produced in the citric acid cycle and consumed in electron transport. 
C)  It is produced in electron transport and consumed in glycolysis. 
D)  It is produced in glycolysis and consumed in fermentation. 
E)  It is produced in the citric acid cycle and consumed in fermentation.

Question 18

What gas supplies energy to microbes at Lost City?

Accepted Answer

A)  methane 
B)  nitrogen 
C)  butane 
D)  carbon dioxide 
E)  fluorine 
A)  methane 
B)  nitrogen 
C)  butane 
D)  carbon dioxide 
E)  fluorine

Question 19

How would plants look had lignin never evolved? Select the TWO answers that are correct.

Accepted Answer

A)  short 
B)  limp 
C)  woody 
D)  tall 
E)  yellow 
A)  short 
B)  limp 
C)  woody 
D)  tall 
E)  yellow

Question 20

How are sperm cells arranged in the seminiferous tubules of the testes?

Accepted Answer

A)  Immature sperm cells are nearer to the epididymis,and more mature sperm cells are further from the epididymis. 
B)  Immature sperm cells are nearer the lumen,and more mature sperm cells are nearer the wall. 
C)  Immature sperm cells are nearer the wall,and more mature sperm cells are nearer the lumen. 
D)  Sperm cells of varying maturity fill the length of the lumen of the seminiferous tubules of the testes. 
E)  Immature sperm cells are further from the epididymis,and more mature sperm cells are nearer to the epididymis. 
A)  Immature sperm cells are nearer to the epididymis,and more mature sperm cells are further from the epididymis. 
B)  Immature sperm cells are nearer the lumen,and more mature sperm cells are nearer the wall. 
C)  Immature sperm cells are nearer the wall,and more mature sperm cells are nearer the lumen. 
D)  Sperm cells of varying maturity fill the length of the lumen of the seminiferous tubules of the testes. 
E)  Immature sperm cells are further from the epididymis,and more mature sperm cells are nearer to the epididymis.

Exam 33: A Range of Biology

What roles do atmospheric gases have in photosynthesis? Select the TWO answers that are correct.

Select the correct sequence of events in the water cycle.

Select the statements that correctly describe hydroelectric power.

The taiga biome is characterized by evergreen trees,whereas the temperate forest biome is characterized by evergreens and trees that drop their leaves during the winter.Which of the following features accounts for these differences in plant life? Select the TWO answers that are correct.

How long will it take for a quarter of the uranium-238 atoms in a rock to decay to lead-206?

What happens at the chimneys of the Lost City that provides clues about life on early Earth? Select the TWO answers that are correct.

Select the scenarios that describe an abiotic factor that is density independent.Select the TWO answers that are correct.

Which of the following biomes covers the greatest amount of Earth's surface?

Why are X-linked traits more commonly expressed in males than in females? Select the TWO answers that are correct.

What extreme conditions do microbes exist under at bleeding glacier sites? Select the TWO answers that are correct.

What phylogenetic evidence supports the conclusion that crocodiles are more closely related to birds than lizards?

Why do ferns not grow as tall as gymnosperms and angiosperms?

What role does water play in photosynthesis?

What functions do membrane proteins serve?

What is meant by codominance?

What evidence exists that humans evolved in Africa? Select the TWO answers that are correct.

Under aerobic conditions,when is pyruvate produced and consumed?

What gas supplies energy to microbes at Lost City?

How would plants look had lignin never evolved? Select the TWO answers that are correct.

How are sperm cells arranged in the seminiferous tubules of the testes?

Process of Science

Chemistry of Life

Cell Structure and Function

Nutrition, Enzymes, Metabolism

Energy and Photosynthesis

Dietary Energy and Cellular Respiration

Genes to Proteins

DNA Structure and Replication

Cell Cycle and Cell Differentiation

Mutations and Cancer

Simple Inheritance and Meiosis

Complex Inheritance

Natural Selection and Adaptation

Nonadaptive Evolution and Speciation

Evidence for Evolution

Life on Earth

Prokaryotic Diversity

Eukaryotic Diversity

Human Evolution

Population Ecology

Community Ecology

Ecosystem Ecology

Sustainability

Plant Growth and Reproduction

Plant Physiology

Overview of Physiology

Digestive System

Cardiovascular System

Respiratory System

Central Nervous System

Reproductive System

Immune System

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