Question 1

Muscles consist mainly of

Accepted Answer

A) carbohydrates. 
B) proteins. 
C) lipids. 
D) nucleic acids. 
A) carbohydrates. 
B) proteins. 
C) lipids. 
D) nucleic acids. B

Question 2

The number of carbon atoms in a benzene ring is

Accepted Answer

A) 4. 
B) 5. 
C) 6. 
D) 8. 
A) 4. 
B) 5. 
C) 6. 
D) 8. C

Question 3

Methane is not

Accepted Answer

A) a hydrocarbon. 
B) an alkane. 
C) present in natural gas. 
D) present in gasoline. 
A) a hydrocarbon. 
B) an alkane. 
C) present in natural gas. 
D) present in gasoline. D

Question 4

DNA controls the development and functioning of a cell by governing its manufacture of

Accepted Answer

A) carbohydrates. 
B) lipids. 
C) amino acids. 
D) proteins. 
A) carbohydrates. 
B) lipids. 
C) amino acids. 
D) proteins.

Question 5

An organic acid molecule contains one or more carboxyl groups whose molecular formula is

Accepted Answer

A) CO. 
B) OH. 
C) COH. 
D) COOH. 
A) CO. 
B) OH. 
C) COH. 
D) COOH.

Question 6

Ethanol

Accepted Answer

A) is also known as methyl alcohol. 
B) is not poisonous. 
C) has OH groups in its molecules. 
D) ionizes when added to water. 
A) is also known as methyl alcohol. 
B) is not poisonous. 
C) has OH groups in its molecules. 
D) ionizes when added to water.

Question 7

The structural formula of the methyl group is

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Question 8

Animal cells do not contain

Accepted Answer

A) glycogen. 
B) starch. 
C) proteins. 
D) lipids. 
A) glycogen. 
B) starch. 
C) proteins. 
D) lipids.

Question 9

The number of covalent bonds possible between two carbon atoms in an organic molecule is

Accepted Answer

A) 1. 
B) 1 or 2. 
C) 1, 2, or 3. 
D) 1, 2, 3, or 4. 
A) 1. 
B) 1 or 2. 
C) 1, 2, or 3. 
D) 1, 2, 3, or 4.

Question 10

The reaction of an alcohol with an organic acid produces

Accepted Answer

A) a ketone. 
B) an ester. 
C) a protein. 
D) an aldehyde. 
A) a ketone. 
B) an ester. 
C) a protein. 
D) an aldehyde.

Question 11

In comparison with hydrocarbon molecules that have double or triple bonds between carbon atoms, hydrocarbon molecules with only single bonds are in general

Accepted Answer

A) less reactive. 
B) about the same in reactivity. 
C) more reactive. 
D) no generalization is possible. 
A) less reactive. 
B) about the same in reactivity. 
C) more reactive. 
D) no generalization is possible.

Question 12

A transplanted body tissue or organ is "rejected" by the recipient's body when the donor and recipient have different

Accepted Answer

A) carbohydrates. 
B) proteins. 
C) lipids. 
D) All of these choices are correct. 
A) carbohydrates. 
B) proteins. 
C) lipids. 
D) All of these choices are correct.

Question 13

The average efficiency of photosynthesis in utilizing solar energy is

Accepted Answer

A) 1 percent. 
B) 20 percent. 
C) 50 percent. 
D) 90 percent. 
A) 1 percent. 
B) 20 percent. 
C) 50 percent. 
D) 90 percent.

Question 14

A molecule in which three bonds occur between carbon atoms is

Accepted Answer

A) C2H. 
B) C2H2. 
C) C2H4. 
D) C2H6. 
A) C2H. 
B) C2H2. 
C) C2H4. 
D) C2H6.

Question 15

Plants store energy in the form of

Accepted Answer

A) cellulose. 
B) starch. 
C) DNA. 
D) glycogen. 
A) cellulose. 
B) starch. 
C) DNA. 
D) glycogen.

Question 16

Of the following acids, the one that dissociates least in water solution is

Accepted Answer

A) nitric. 
B) acetic. 
C) sulfuric. 
D) hydrochloric. 
A) nitric. 
B) acetic. 
C) sulfuric. 
D) hydrochloric.

Question 17

The process by which small molecules join together to form larger ones is called

Accepted Answer

A) cracking. 
B) esterification. 
C) polymerization. 
D) saturation. 
A) cracking. 
B) esterification. 
C) polymerization. 
D) saturation.

Question 18

The structural elements of a polyester such as Dacron

Accepted Answer

A) are glass fibers. 
B) are esters. 
C) have ester linkages between them. 
D) are arranged in rings. 
A) are glass fibers. 
B) are esters. 
C) have ester linkages between them. 
D) are arranged in rings.

Question 19

Fermentation can convert sugar to carbon dioxide and

Accepted Answer

A) ethanol. 
B) methanol. 
C) acetic acid. 
D) starch. 
A) ethanol. 
B) methanol. 
C) acetic acid. 
D) starch.

Question 20

In photosynthesis, chlorophyll acts

Accepted Answer

A) to shield the reacting molecules from sunlight. 
B) to extract oxygen from the atmosphere. 
C) to prevent water from evaporating. 
D) to both catalyze and provide energy to the process. 
A) to shield the reacting molecules from sunlight. 
B) to extract oxygen from the atmosphere. 
C) to prevent water from evaporating. 
D) to both catalyze and provide energy to the process.

Muscles consist mainly of

The number of carbon atoms in a benzene ring is

Methane is not

DNA controls the development and functioning of a cell by governing its manufacture of

An organic acid molecule contains one or more carboxyl groups whose molecular formula is

Ethanol

The structural formula of the methyl group is

Animal cells do not contain

The number of covalent bonds possible between two carbon atoms in an organic molecule is

The reaction of an alcohol with an organic acid produces

In comparison with hydrocarbon molecules that have double or triple bonds between carbon atoms, hydrocarbon molecules with only single bonds are in general

A transplanted body tissue or organ is "rejected" by the recipient's body when the donor and recipient have different

The average efficiency of photosynthesis in utilizing solar energy is

A molecule in which three bonds occur between carbon atoms is

Plants store energy in the form of

Of the following acids, the one that dissociates least in water solution is

The process by which small molecules join together to form larger ones is called

The structural elements of a polyester such as Dacron

Fermentation can convert sugar to carbon dioxide and

In photosynthesis, chlorophyll acts

The Scientific Method

Motion

Energy

Energy and the Future

Matter and Heat

Electricity and Magnetism

Waves

The Nucleus

The Atom

The Periodic Law

Crystals, Ions, and Solutions

Chemical Reactions

Atmosphere and Hydrosphere

The Rock Cycle

The Evolving Earth

The Solar System

The Stars

Universe

Filters

Exam 13: Organic Chemistry

Muscles consist mainly of

The number of carbon atoms in a benzene ring is

Methane is not

DNA controls the development and functioning of a cell by governing its manufacture of

An organic acid molecule contains one or more carboxyl groups whose molecular formula is

Ethanol

The structural formula of the methyl group is

Animal cells do not contain

The number of covalent bonds possible between two carbon atoms in an organic molecule is

The reaction of an alcohol with an organic acid produces

In comparison with hydrocarbon molecules that have double or triple bonds between carbon atoms, hydrocarbon molecules with only single bonds are in general

A transplanted body tissue or organ is "rejected" by the recipient's body when the donor and recipient have different

The average efficiency of photosynthesis in utilizing solar energy is

A molecule in which three bonds occur between carbon atoms is

Plants store energy in the form of

Of the following acids, the one that dissociates least in water solution is

The process by which small molecules join together to form larger ones is called

The structural elements of a polyester such as Dacron

Fermentation can convert sugar to carbon dioxide and

In photosynthesis, chlorophyll acts

The Scientific Method

Motion

Energy

Energy and the Future

Matter and Heat

Electricity and Magnetism

Waves

The Nucleus

The Atom

The Periodic Law

Crystals, Ions, and Solutions

Chemical Reactions

Atmosphere and Hydrosphere

The Rock Cycle

The Evolving Earth

The Solar System

The Stars

Universe

Filters