Question 1

Why is He positioned above Ne in the periodic table?

Accepted Answer

A)  They both have the same atomic mass. 
B)  They both have the same number of electrons in their outermost orbital. 
C)  They both have a full outermost orbital. 
D)  They both have the same atomic number. 
E)  They both have the same number of protons in their nuclei. 
A)  They both have the same atomic mass. 
B)  They both have the same number of electrons in their outermost orbital. 
C)  They both have a full outermost orbital. 
D)  They both have the same atomic number. 
E)  They both have the same number of protons in their nuclei.

Question 2

On a warm day in April, Tina jumped into the swimming pool. To her surprise the water was really cold. Which property of water did she discover?

Accepted Answer

A)  Water molecules are cohesive. 
B)  The temperature of liquid water rises and falls slowly. 
C)  Water possesses hydrogen bonds. 
D)  Water is a polar molecule. 
E)  Frozen water is less dense than liquid water. 
A)  Water molecules are cohesive. 
B)  The temperature of liquid water rises and falls slowly. 
C)  Water possesses hydrogen bonds. 
D)  Water is a polar molecule. 
E)  Frozen water is less dense than liquid water.

Question 3

Fats and oils function better than other biological molecules as energy-storage molecules because of the carbon they contain.

Accepted Answer

A) True 
 B)False

Question 4

Which type of bond is responsible for holding two water molecules together, creating the properties of water?

Accepted Answer

A)  hydrogen 
B)  covalent 
C)  ionic 
D)  polar 
E)  double covalent 
A)  hydrogen 
B)  covalent 
C)  ionic 
D)  polar 
E)  double covalent

Question 5

A hydrolysis reaction involves the loss of water.

Accepted Answer

A) True 
 B)False

Question 6

The sides of the DNA ladder backbone) are

Accepted Answer

A)  alternating carbons and nitrogens. 
B)  the R groups. 
C)  the nitrogenous bases. 
D)  alternating nitrogens and phosphates. 
E)  sugars and phosphates. 
A)  alternating carbons and nitrogens. 
B)  the R groups. 
C)  the nitrogenous bases. 
D)  alternating nitrogens and phosphates. 
E)  sugars and phosphates.

Question 7

Which of the following elements will have more than two electrons and have a full outer orbital?

Accepted Answer

A)  He 
B)  Ne 
C)  C 
D)  N 
E)  O 
A)  He 
B)  Ne 
C)  C 
D)  N 
E)  O

Question 8

What passes through the digestive tract as fiber or roughage?

Accepted Answer

A)  maltose 
B)  glucose 
C)  glycogen 
D)  starch 
E)  cellulose 
A)  maltose 
B)  glucose 
C)  glycogen 
D)  starch 
E)  cellulose

Question 9

Starch, cellulose, and glycogen are alike in that they

Accepted Answer

A)  are all made of glucose. 
B)  contain the same number of side chains. 
C)  have the same types of bonds between the monomer units. 
D)  are all found in animals. 
E)  can all be digested by our bodies. 
A)  are all made of glucose. 
B)  contain the same number of side chains. 
C)  have the same types of bonds between the monomer units. 
D)  are all found in animals. 
E)  can all be digested by our bodies.

Question 10

William noticed water mysteriously climbing up a capillary tube. This is an example of which property of water?

Accepted Answer

A)  Frozen water is less dense than liquid water. 
B)  The temperature of liquid water rises and falls slowly. 
C)  Water molecules are cohesive. 
D)  Water has a high heat of vaporization. 
E)  Water is a solvent. 
A)  Frozen water is less dense than liquid water. 
B)  The temperature of liquid water rises and falls slowly. 
C)  Water molecules are cohesive. 
D)  Water has a high heat of vaporization. 
E)  Water is a solvent.

Question 11

Describe the structure and function of the DNA molecule.

Accepted Answer

DNA is composed of a phosphate group, ni

Question 12

An alpha helix or a beta sheet are examples of what level of protein structure?

Accepted Answer

A)  secondary 
B)  primary 
C)  tertiary 
D)  quaternary 
E)  octagon 
A)  secondary 
B)  primary 
C)  tertiary 
D)  quaternary 
E)  octagon

Question 13

Water makes up 60-70% of total body weight.

Accepted Answer

A) True 
 B)False

Question 14

A solution with a pH of 7 has 10 times as many H+ as a pH of 6.

Accepted Answer

A) True 
 B)False

Question 15

What makes each amino acid unique?

Accepted Answer

A)  the central carbon 
B)  the R group 
C)  the amino group 
D)  the carboxyl group 
E)  the carbon ring 
A)  the central carbon 
B)  the R group 
C)  the amino group 
D)  the carboxyl group 
E)  the carbon ring

Question 16

Which of the following is not a function of proteins?

Accepted Answer

A)  quick energy 
B)  support 
C)  transport 
D)  enzymes 
E)  motion 
A)  quick energy 
B)  support 
C)  transport 
D)  enzymes 
E)  motion

Question 17

The main function of carbohydrates is for long-term energy storage.

Accepted Answer

A) True 
 B)False

Question 18

Why does a protein not function after it has been denatured?

Accepted Answer

A)  The normal bonding between the R groups has been disturbed and the protein loses its normal shape. 
B)  The normal bonding between the beta sheets has been disturbed and the protein loses its normal shape. 
C)  The normal bonding between the hydrogens in the alpha helix has been disturbed and the protein loses its normal shape. 
D)  The R groups form additional bonds causing the structure to become more compact. 
E)  The normal peptide bonds are ruptured and the individual amino acids are not held together any more. 
A)  The normal bonding between the R groups has been disturbed and the protein loses its normal shape. 
B)  The normal bonding between the beta sheets has been disturbed and the protein loses its normal shape. 
C)  The normal bonding between the hydrogens in the alpha helix has been disturbed and the protein loses its normal shape. 
D)  The R groups form additional bonds causing the structure to become more compact. 
E)  The normal peptide bonds are ruptured and the individual amino acids are not held together any more.

Question 19

Two or more atoms joined together through the sharing of electrons are called an)

Accepted Answer

A)  atomic unit. 
B)  molecule. 
C)  compound. 
D)  isotope. 
E)  ion. 
A)  atomic unit. 
B)  molecule. 
C)  compound. 
D)  isotope. 
E)  ion.

Question 20

The monomer unit of a protein is

Accepted Answer

A)  fatty acids. 
B)  amino acids. 
C)  monosaccharides. 
D)  polysaccharides. 
E)  nucleic acids. 
A)  fatty acids. 
B)  amino acids. 
C)  monosaccharides. 
D)  polysaccharides. 
E)  nucleic acids.

Exam 2: Chemistery of Life

Why is He positioned above Ne in the periodic table?

On a warm day in April, Tina jumped into the swimming pool. To her surprise the water was really cold. Which property of water did she discover?

Fats and oils function better than other biological molecules as energy-storage molecules because of the carbon they contain.

Which type of bond is responsible for holding two water molecules together, creating the properties of water?

A hydrolysis reaction involves the loss of water.

The sides of the DNA ladder backbone) are

Which of the following elements will have more than two electrons and have a full outer orbital?

What passes through the digestive tract as fiber or roughage?

Starch, cellulose, and glycogen are alike in that they

William noticed water mysteriously climbing up a capillary tube. This is an example of which property of water?

Describe the structure and function of the DNA molecule.

An alpha helix or a beta sheet are examples of what level of protein structure?

Water makes up 60-70% of total body weight.

A solution with a pH of 7 has 10 times as many H+ as a pH of 6.

What makes each amino acid unique?

Which of the following is not a function of proteins?

The main function of carbohydrates is for long-term energy storage.

Why does a protein not function after it has been denatured?

Two or more atoms joined together through the sharing of electrons are called an)

The monomer unit of a protein is

Human Organization

Cell Structure and Function

Torganization and Regulation of Body Systems

Cardiovascular System : Heart and Blood Vessels

Cardiovascular System : Blood

The Lumphatic and Immune Systems

Biology of Infectious Diseases

Digestive System and Nutrition

Respiratory System

Urinary System

Skeletal System

Muscular System

Nervous System

Senses

Endocring System

Reproductive System

Development and Aging

Patterns of Chromosome Inheritance

Cancer

Patterns of Genetic Inheritance

Dna Piology and Technology

Hummen Evolution

Ecology and the Nature of Ecosystems

Hummen Interactions With the Biosphere

Filters

A solution with a pH of 7 has 10 times as many H⁺ as a pH of 6.