Question 1

The difference between one amino acid and another is the:

Accepted Answer

A) number of amino and carboxyl groups each contains. 
B) number of R groups each contains. 
C) type of R group each contains. 
D) way their amino groups bond with carboxyl groups. 
E) difference in the chemical properties of their amino and carboxyl groups. 
A) number of amino and carboxyl groups each contains. 
B) number of R groups each contains. 
C) type of R group each contains. 
D) way their amino groups bond with carboxyl groups. 
E) difference in the chemical properties of their amino and carboxyl groups. C

Question 2

Most enzymes are proteins,but not all proteins are enzymes.

Accepted Answer

A) True 
 B)False  True

Question 3

Sugar is an organic molecule because it contains:

Accepted Answer

A) carbon and nitrogen. 
B) carbon. 
C) water. 
D) carbon dioxide. 
E) carbon and oxygen. 
A) carbon and nitrogen. 
B) carbon. 
C) water. 
D) carbon dioxide. 
E) carbon and oxygen. B

Question 4

The active site of an enzyme is a product of its ________.

Accepted Answer

three-dime

Question 5

The precursor from which steroid hormones are made is ________.

Accepted Answer

The answer of The precursor from which steroid hormones are...

Question 6

Which of the following are polysaccharides?

Accepted Answer

A) sucrose and glucose 
B) fructose and deoxyribose 
C) DNA and RNA 
D) starch and glycogen 
A) sucrose and glucose 
B) fructose and deoxyribose 
C) DNA and RNA 
D) starch and glycogen

Question 7

What do wax and testosterone have in common?

Accepted Answer

A) They are both hormones. 
B) They are both proteins. 
C) They are both steroids. 
D) They are both lipids. 
A) They are both hormones. 
B) They are both proteins. 
C) They are both steroids. 
D) They are both lipids.

Question 8

Which of the following contains both a carboxyl group and an amino group?

Accepted Answer

A) carbohydrates 
B) nucleotides 
C) amino acids 
D) lipids 
A) carbohydrates 
B) nucleotides 
C) amino acids 
D) lipids

Question 9

Which of the following is a polymer?

Accepted Answer

A) fat 
B) steroid 
C) nucleic acid 
D) wax 
A) fat 
B) steroid 
C) nucleic acid 
D) wax

Question 10

Refer to the figure below, and then answer the question that follows.
  
-Explain why you will always find an amino group at one end of a polypeptide chain and a carboxyl group at the other end.

Accepted Answer

The first amino acid will have an amino

Question 11

A series of amino acids linked in linear fashion is called a ________.

Accepted Answer

The answer of A series of amino acids linked in...

Question 12

Many features of a protein change when it is moved into an environment with a different pH.Which of the following features would stay the same?

Accepted Answer

A) function of the protein 
B) shape of the protein 
C) binding properties of the protein 
D) amino acid sequence of the protein 
E) tertiary structure of the protein 
A) function of the protein 
B) shape of the protein 
C) binding properties of the protein 
D) amino acid sequence of the protein 
E) tertiary structure of the protein

Question 13

Which of the following is an example of a lipid?

Accepted Answer

A) cholesterol 
B) cellulose 
C) keratin 
D) chitin 
A) cholesterol 
B) cellulose 
C) keratin 
D) chitin

Question 14

Unique chemical groups that confer special properties to an organic molecule are called:

Accepted Answer

A) monomers. 
B) amino acids. 
C) functional groups. 
D) lipids. 
A) monomers. 
B) amino acids. 
C) functional groups. 
D) lipids.

Question 15

All hormones are steroids.

Accepted Answer

A) True 
 B)False

Question 16

Nucleotides are the building blocks for:

Accepted Answer

A) disaccharides. 
B) ATP, DNA, and RNA. 
C) proteins. 
D) lipids. 
E) steroids. 
A) disaccharides. 
B) ATP, DNA, and RNA. 
C) proteins. 
D) lipids. 
E) steroids.

Question 17

Lipids with carbon-carbon double bonds tend to be more solid at room temperature.

Accepted Answer

A) True 
 B)False

Question 18

Keratin is an example of a ________ protein.

Accepted Answer

The answer of Keratin is an example of a ________...

Question 19

The monomers of polysaccharides are:

Accepted Answer

A) amino acids. 
B) nucleotides. 
C) steroids. 
D) lipids. 
E) sugars. 
A) amino acids. 
B) nucleotides. 
C) steroids. 
D) lipids. 
E) sugars.

Question 20

Every protein has a unique shape and function because:

Accepted Answer

A) each protein has a unique sequence of nucleotides. 
B) each protein has a unique sequence of amino acids. 
C) the bonds between the amino acids vary from protein to protein. 
D) the number of nitrogen atoms in each amino acid differs. 
A) each protein has a unique sequence of nucleotides. 
B) each protein has a unique sequence of amino acids. 
C) the bonds between the amino acids vary from protein to protein. 
D) the number of nitrogen atoms in each amino acid differs.

Exam 3: Lifes Components: Biological Molecules

The difference between one amino acid and another is the:

Most enzymes are proteins,but not all proteins are enzymes.

Sugar is an organic molecule because it contains:

The active site of an enzyme is a product of its ________.

The precursor from which steroid hormones are made is ________.

Which of the following are polysaccharides?

What do wax and testosterone have in common?

Which of the following contains both a carboxyl group and an amino group?

Which of the following is a polymer?

Refer to the figure below, and then answer the question that follows. -Explain why you will always find an amino group at one end of a polypeptide chain and a carboxyl group at the other end.

A series of amino acids linked in linear fashion is called a ________.

Many features of a protein change when it is moved into an environment with a different pH.Which of the following features would stay the same?

Which of the following is an example of a lipid?

Unique chemical groups that confer special properties to an organic molecule are called:

All hormones are steroids.

Nucleotides are the building blocks for:

Lipids with carbon-carbon double bonds tend to be more solid at room temperature.

Keratin is an example of a ________ protein.

The monomers of polysaccharides are:

Every protein has a unique shape and function because:

Science As a Way of Learning: a Guide to the Natural World

Fundamental Building Blocks: Chemistry, water, and Ph

Lifes Home: the Cell

Lifes Border: the Plasma Membrane

Lifes Mainspring: an Introduction to Energy

Vital Harvest: Deriving Energy From Food

The Green Worlds Gift: Photosynthesis

The Links in Lifes Chain: Genetics and Cell Division

Preparing for Sexual Reproduction: Meiosis

The First Geneticist: Mendel and His Discoveries

Units of Heredity: Chromosomes and Inheritance

Passing on Lifes Information: Dna Structure and Replication

How Proteins Are Made: Genetic Transcription, translation, and Regulation

The Future Isnt What It Used to Be: Biotechnology

An Introduction to Evolution: Charles Darwin, evolutionary Thought, and the Evidence for Evolution

The Means of Evolution: Microevolution

The Outcomes of Evolution: Macroevolution

A Slow Unfolding: the History of Life on Earth

Arriving Late,traveling Far: the Evolution of Human Beings

Viruses,bacteria,archaea,and Protists: the Diversity of Life 1

Fungi: the Diversity of Life 2

Animals: the Diversity of Life 3

Plants: the Diversity of Life 4

The Angiosperms: Form and Function in Flowering Plants

Body Support and Movement: the Integumentary, skeletal, and Muscular Systems

Communication and Control 1: the Nervous System

Communication and Control 2: the Endocrine System

Defending the Body: the Immune System

Transport and Exchange 1: Blood and Breath

Transport and Exchange 2: Digestion, nutrition, and Elimination

An Amazingly Detailed Script: Animal Development

How the Baby Came to Be: Human Reproduction

An Interactive Living World 1: Populations in Ecology

An Interactive Living World 2: Communities in Ecology

An Interactive Living World 3: Ecosystems and Biomes

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