Question 1

Photosynthesis produces sugars from

Accepted Answer

A)   water, carbon dioxide, and energy.
B)   water, other sugars, and oxygen.
C)   oxygen, carbon dioxide, and water.
D)   carbon dioxide, enzymes, and energy.
E)   oxygen, water, and energy.

Question 2

Which is not a characteristic of acids?

Accepted Answer

A)   they readily give up hydrogen ions
B)   they have a pH of less than 7
C)   they react easily with living tissue
D)   they react easily with nonliving minerals
E)   all of these are characteristic of acids

Question 3

Nitrogen is an essential component of amino acids and proteins.

Accepted Answer

A) True 
 B)False

Question 4

Water supplies contaminated with algae that produce toxins making the water unfit to drink is a result of the human impact to the

Accepted Answer

A)   hydrologic cycle.
B)   carbon cycle.
C)   nitrogen cycle.
D)   sulfur cycle.

Question 5

The motion of a rock rolling downhill is known as __________ energy.

Accepted Answer

A)   kinetic
B)   latent
C)   potential
D)   electrical
E)   mechanical

Question 6

What implication(s)  does the second law of thermodynamics have for biological systems?

Accepted Answer

A)   Systems cannot create energy because energy is neither created nor destroyed.
B)   With each transformation, less available energy is available to do work so older systems have less energy.
C)   A constant supply of energy is necessary for maintenance of biological systems.
D)   Energy is unlimited because it is used and reused by living organisms.
E)   None of these is an implication of the second law of thermodynamics.

Question 7

Photosynthesis is a step in the global nitrogen cycle.

Accepted Answer

A) True 
 B)False

Question 8

Primary consumers are also known as

Accepted Answer

A)   carnivores.
B)   scavengers.
C)   decomposers.
D)   herbivores.
E)   top carnivores

Question 9

The length and complexity of a food web in the Arctic would be ____________ when compared to one in the tropical rainforest.

Accepted Answer

A)   short and less complex
B)   short and more complex
C)   long and less complex
D)   long and more complex
E)   about the same

Question 10

The first law of thermodynamics and the law of conservation of matter are similar in that

Accepted Answer

A)   under normal circumstances neither energy nor matter is created nor destroyed.
B)   both energy and matter are recycled through biological systems.
C)   both energy and matter flow in a one-way path through biological systems.
D)   under normal circumstances energy and matter are destroyed as they pass through biological systems.
E)   The first law of thermodynamics and the law of conservation of matter are not similar.

Question 11

Which is the best example of a closed system?

Accepted Answer

A)   a space station
B)   a forest
C)   a hotel
D)   a lake
E)   a river

Question 12

Adding an acid to a solution _________ the pH, while adding a base _________ the pH.

Accepted Answer

A)   decrease and neutralize.
B)   increases and decreases.
C)   neutralize and increases.
D)   decreases and increase.
E)   decreases and neutralize.

Question 13

The damage to an ecosystem caused by a hurricane or flood can be referred to as

Accepted Answer

A)   An open system
B)   An emergent property
C)   Equilibrium in nature
D)   A disturbance
E)   Negative feedback loop D

Question 14

Which of the following statements would change this into a Truestatement: "Most, but not all, living organisms are made up of organic compounds"?

Accepted Answer

A)   All living organisms are made up of organic compounds.
B)   All living organisms are made up of inorganic compounds.
C)   Most, but not all, living organisms are made up of inorganic compounds.
D)   Most, but not all, living organisms are made up of organic elements.
E)   Most, but not all, living organisms are made up of inorganic elements.

Question 15

How do the organisms living around Yellowstone's hot springs get energy?

Accepted Answer

A)   by eating alga
B)   from the heat in the hot spring
C)   from photosynthesis
D)   from chemosynthesis
E)   no organisms can live at the depths of black smokers D

Question 16

All members of a species that live in the same area at the same time make up a(an)

Accepted Answer

A)   species.
B)   ecosystem.
C)   community.
D)   population.
E)   biome.

Question 17

Based on what you know of photosynthesis, what effect would clearcutting of large forests have on the amount of carbon dioxide in the atmosphere?

Accepted Answer

A)   It would increase the level of carbon dioxide since less photosynthesis would be taking place.
B)   The amount of carbon dioxide would be decreased since the trees would no longer be living.
C)   There would be no change in carbon dioxide levels since humans put carbon dioxide into the atmosphere by burning fossil fuels.
D)   The amount of carbon dioxide would be the same since the reaction rates of photosynthesis and respiration are equal. A

Question 18

A biological community consists of all

Accepted Answer

A)   populations living and interacting in an area.
B)   members of a species living in the same area.
C)   living things on Earth.
D)   populations of a given species.
E)   members of a species living in the same biome.

Question 19

An ecosystem consists of

Accepted Answer

A)   a physical environment within which a biological community lives.
B)   the species with which a biological community interacts.
C)   a biological community and its physical environment.
D)   the primary producers within a biological community.
E)   all the species in a biological community.

Question 20

Which biogeochemical cycle lacks an atmospheric component?

Accepted Answer

A)   The hydrologic cycle.
B)   The carbon cycle.
C)   The nitrogen cycle.
D)   The phosphorous cycle.

Exam 2: Environmental Systems: Matter and Energy of Life

Photosynthesis produces sugars from

Correct AnswerverifiedShow Answer

Which is not a characteristic of acids?

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Nitrogen is an essential component of amino acids and proteins.

Correct AnswerverifiedShow Answer

Water supplies contaminated with algae that produce toxins making the water unfit to drink is a result of the human impact to the

Correct AnswerverifiedShow Answer

The motion of a rock rolling downhill is known as __________ energy.

Correct AnswerverifiedShow Answer

What implication(s) does the second law of thermodynamics have for biological systems?

Correct AnswerverifiedShow Answer

Photosynthesis is a step in the global nitrogen cycle.

Correct AnswerverifiedShow Answer

Primary consumers are also known as

Correct AnswerverifiedShow Answer

The length and complexity of a food web in the Arctic would be ____________ when compared to one in the tropical rainforest.

Correct AnswerverifiedShow Answer

The first law of thermodynamics and the law of conservation of matter are similar in that

Correct AnswerverifiedShow Answer

Which is the best example of a closed system?

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Adding an acid to a solution _________ the pH, while adding a base _________ the pH.

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The damage to an ecosystem caused by a hurricane or flood can be referred to as

Correct AnswerverifiedD

Which of the following statements would change this into a Truestatement: "Most, but not all, living organisms are made up of organic compounds"?

Correct AnswerverifiedShow Answer

How do the organisms living around Yellowstone's hot springs get energy?

Correct AnswerverifiedD

All members of a species that live in the same area at the same time make up a(an)

Correct AnswerverifiedShow Answer

Based on what you know of photosynthesis, what effect would clearcutting of large forests have on the amount of carbon dioxide in the atmosphere?

Correct AnswerverifiedA

A biological community consists of all

Correct AnswerverifiedShow Answer

An ecosystem consists of

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Which biogeochemical cycle lacks an atmospheric component?

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Adding an acid to a solution _ the pH, while adding a base _ the pH.

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D

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D

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A

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