Question 1

Which of the following statements defies the first law of thermodynamics?

Accepted Answer

A) When coal is burned in a power plant,some of the energy escapes as heat rather than being converted to electricity. 
B) When we build a campfire,the energy stored in the molecules in the wood is released as thermal energy. 
C) Autotrophs such as plants produce energy that is consumed by heterotrophs. 
D) We can decrease the amount of entropy in our dorm room if we use energy to get things organized. 
A) When coal is burned in a power plant,some of the energy escapes as heat rather than being converted to electricity. 
B) When we build a campfire,the energy stored in the molecules in the wood is released as thermal energy. 
C) Autotrophs such as plants produce energy that is consumed by heterotrophs. 
D) We can decrease the amount of entropy in our dorm room if we use energy to get things organized. C

Question 2

All organic molecules contain what elements?

Accepted Answer

A) Potassium and sulfur 
B) Hydrogen and oxygen 
C) Carbon 
D) Nitrogen 
A) Potassium and sulfur 
B) Hydrogen and oxygen 
C) Carbon 
D) Nitrogen C

Question 3

Without regular cleanups,the tendency of a home or dorm room to become increasingly messy generally reflects________.

Accepted Answer

A) an increase in entropy 
B) the loss of heat in any energy conversion 
C) the conversion of kinetic energy into potential energy 
D) the law of energy conservation 
A) an increase in entropy 
B) the loss of heat in any energy conversion 
C) the conversion of kinetic energy into potential energy 
D) the law of energy conservation A

Question 4

Why is one region of a water molecule slightly negatively charged?

Accepted Answer

A) The hydrogen atoms attract protons more strongly than the oxygen atom does. 
B) The hydrogen atoms attract electrons more strongly than the oxygen atom does. 
C) The oxygen atom attracts electrons more strongly than the hydrogen atoms do. 
D) The oxygen atom attracts protons more strongly than the hydrogen atoms do. 
A) The hydrogen atoms attract protons more strongly than the oxygen atom does. 
B) The hydrogen atoms attract electrons more strongly than the oxygen atom does. 
C) The oxygen atom attracts electrons more strongly than the hydrogen atoms do. 
D) The oxygen atom attracts protons more strongly than the hydrogen atoms do.

Question 5

Hydrogen bonds involve an attraction between ____________.

Accepted Answer

A) hydrogen atoms and oxygen atoms within water molecules 
B) hydrogen atoms and other hydrogen atoms 
C) positive regions of one water molecule and negative regions of other water molecules 
D) oxygen atoms and other oxygen atoms 
A) hydrogen atoms and oxygen atoms within water molecules 
B) hydrogen atoms and other hydrogen atoms 
C) positive regions of one water molecule and negative regions of other water molecules 
D) oxygen atoms and other oxygen atoms

Question 6

The first law of thermodynamics states that _____________.

Accepted Answer

A) energy can be transformed but cannot be created or destroyed 
B) energy is always degraded in a chemical reaction 
C) all energy always has kinetic and potential characteristics 
D) entropy always decreases in normal chemical reactions 
A) energy can be transformed but cannot be created or destroyed 
B) energy is always degraded in a chemical reaction 
C) all energy always has kinetic and potential characteristics 
D) entropy always decreases in normal chemical reactions

Question 7

Briefly explain the overall processes of photosynthesis and cellular respiration.Include a brief explanation of autotrophs and heterotrophs in your answer.

Accepted Answer

Photosynthesis is performed by autotroph

Question 8

Which of the following best represents kinetic energy?

Accepted Answer

A) A charged battery 
B) The energy in the wax molecules of a candle 
C) Gunpowder in a bullet 
D) A hot burner on a stove 
A) A charged battery 
B) The energy in the wax molecules of a candle 
C) Gunpowder in a bullet 
D) A hot burner on a stove

Question 9

All of the following are found in a eukaryotic cell except_____________ .

Accepted Answer

A) endoplasmic reticulum 
B) Golgi apparatus 
C) nucleoid region 
D) mitochondria 
A) endoplasmic reticulum 
B) Golgi apparatus 
C) nucleoid region 
D) mitochondria

Question 10

What is the basic unit of an element?

Accepted Answer

A) Neutron 
B) Isotope 
C) Atom 
D) Molecule 
A) Neutron 
B) Isotope 
C) Atom 
D) Molecule

Question 11

____________are proteins that facilitate chemical reactions such as digestion.

Accepted Answer

A) Nucleic acids 
B) Enzymes 
C) Anions 
D) Isotopes 
A) Nucleic acids 
B) Enzymes 
C) Anions 
D) Isotopes

Question 12

During photosynthesis,___________.

Accepted Answer

A) sugars and carbon dioxide are produced 
B) there is a net consumption of oxygen and carbon dioxide 
C) there is a net consumption of water and carbon dioxide 
D) carbon dioxide and oxygen are produced 
A) sugars and carbon dioxide are produced 
B) there is a net consumption of oxygen and carbon dioxide 
C) there is a net consumption of water and carbon dioxide 
D) carbon dioxide and oxygen are produced

Question 13

In a chemical reaction,____________.

Accepted Answer

A) atoms are rearranged 
B) new atoms are formed 
C) atoms are destroyed 
D) new elements are formed 
A) atoms are rearranged 
B) new atoms are formed 
C) atoms are destroyed 
D) new elements are formed

Question 14

If the temperature of a gas increases,the ________of the gas decreases.

Accepted Answer

A) pressure 
B) volume 
C) number of moles 
D) None of these is correct. 
A) pressure 
B) volume 
C) number of moles 
D) None of these is correct.

Question 15

Aerobic cellular respiration ___________.

Accepted Answer

A) releases carbon dioxide and water 
B) involves a net consumption of water 
C) represents a decrease in entropy 
D) results in a net consumption of energy 
A) releases carbon dioxide and water 
B) involves a net consumption of water 
C) represents a decrease in entropy 
D) results in a net consumption of energy

Question 16

Molecules are _______.

Accepted Answer

A) chemicals that cannot be broken or separated 
B) two or more atoms held together by covalent bonds 
C) atoms of an element 
D) basic subunits of elements 
A) chemicals that cannot be broken or separated 
B) two or more atoms held together by covalent bonds 
C) atoms of an element 
D) basic subunits of elements

Question 17

Which of the following best represents potential energy converted to kinetic energy?

Accepted Answer

A) A windmill pumping water up into a water storage tank 
B) Pulling a boat up onto a shoreline 
C) Plants capturing sunlight to produce sugars using photosynthesis 
D) Turning on a flashlight 
A) A windmill pumping water up into a water storage tank 
B) Pulling a boat up onto a shoreline 
C) Plants capturing sunlight to produce sugars using photosynthesis 
D) Turning on a flashlight

Question 18

Which of the following reactions represents aerobic cellular respiration?

Accepted Answer

A) Water + carbon dioxide ‹ glucose + oxygen + water + energy 
B) Water + carbon dioxide + energy ‹ glucose + oxygen + water 
C) Glucose + oxygen ‹ water + carbon dioxide + energy 
D) Nitrogen + carbon dioxide + energy ‹ methane + oxygen 
A) Water + carbon dioxide ‹ glucose + oxygen + water + energy 
B) Water + carbon dioxide + energy ‹ glucose + oxygen + water 
C) Glucose + oxygen ‹ water + carbon dioxide + energy 
D) Nitrogen + carbon dioxide + energy ‹ methane + oxygen

Question 19

An_________is the smallest unit of matter that still maintains the chemical properties of an element.

Accepted Answer

A) molecule 
B) compound 
C) nucleus 
D) atom 
A) molecule 
B) compound 
C) nucleus 
D) atom

Question 20

_________is defined as the number of protons plus the number of neutrons in an atom.

Accepted Answer

A) Ionic number 
B) Atomic number 
C) Nuclear number 
D) Mass number 
A) Ionic number 
B) Atomic number 
C) Nuclear number 
D) Mass number

Which of the following statements defies the first law of thermodynamics?

All organic molecules contain what elements?

Without regular cleanups,the tendency of a home or dorm room to become increasingly messy generally reflects________.

Why is one region of a water molecule slightly negatively charged?

Hydrogen bonds involve an attraction between ____________.

The first law of thermodynamics states that _____________.

Briefly explain the overall processes of photosynthesis and cellular respiration.Include a brief explanation of autotrophs and heterotrophs in your answer.

Which of the following best represents kinetic energy?

All of the following are found in a eukaryotic cell except_____________ .

What is the basic unit of an element?

____________are proteins that facilitate chemical reactions such as digestion.

During photosynthesis,___________.

In a chemical reaction,____________.

If the temperature of a gas increases,the ________of the gas decreases.

Aerobic cellular respiration ___________.

Molecules are _______.

Which of the following best represents potential energy converted to kinetic energy?

Which of the following reactions represents aerobic cellular respiration?

An_________is the smallest unit of matter that still maintains the chemical properties of an element.

_________is defined as the number of protons plus the number of neutrons in an atom.

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Exam 18: Nonrenewable Energy

Which of the following statements defies the first law of thermodynamics?

All organic molecules contain what elements?

Without regular cleanups,the tendency of a home or dorm room to become increasingly messy generally reflects________.

Why is one region of a water molecule slightly negatively charged?

Hydrogen bonds involve an attraction between ____________.

The first law of thermodynamics states that _____________.

Briefly explain the overall processes of photosynthesis and cellular respiration.Include a brief explanation of autotrophs and heterotrophs in your answer.

Which of the following best represents kinetic energy?

All of the following are found in a eukaryotic cell except_____________ .

What is the basic unit of an element?

____________are proteins that facilitate chemical reactions such as digestion.

During photosynthesis,___________.

In a chemical reaction,____________.

If the temperature of a gas increases,the ________of the gas decreases.

Aerobic cellular respiration ___________.

Molecules are _______.

Which of the following best represents potential energy converted to kinetic energy?

Which of the following reactions represents aerobic cellular respiration?

An_________is the smallest unit of matter that still maintains the chemical properties of an element.

_________is defined as the number of protons plus the number of neutrons in an atom.

The Science of Sustainability

Environmental Policy

Economics and Values

Biodiversity and Evolution

Populations and Communities

Ecosystems and Biomes

Biogeochemical Cycles

Freshwater

Atmosphere and Air Pollution

Oceans

Climate

Human Populations

Land Use

Agriculture

Solid and Hazardous Waste

Human Health and the Environment

Energy Use

Enewable Energy

Science Fundamentals

Filters