Question 1

Which of the following is not present in a nucleotide?

Accepted Answer

A)  phosphate 
B)  nitrogenous base 
C)  five-ring sugar 
D)  an R group 
E)  a pentose 
A)  phosphate 
B)  nitrogenous base 
C)  five-ring sugar 
D)  an R group 
E)  a pentose D

Question 2

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. A

Question 3

List the properties of water.

Accepted Answer

1.Water has a high heat capacity.
2.Water has a high heat of evaporation.
3.Water is a solvent.
4.Water molecules are cohesive and adhesive.
5.Frozen water is less dense than liquid water.

Question 4

Hydrogen bonds

Accepted Answer

A)  result from the loss of neutrons by an atom. 
B)  result in the formation of salts. 
C)  involve the loss and gain of electrons. 
D)  involve the sharing of electrons. 
E)  are relatively weak and can be broken rather easily. 
A)  result from the loss of neutrons by an atom. 
B)  result in the formation of salts. 
C)  involve the loss and gain of electrons. 
D)  involve the sharing of electrons. 
E)  are relatively weak and can be broken rather easily.

Question 5

A fat contains how many fatty acids?

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  4 
E)  5 
A)  1 
B)  2 
C)  3 
D)  4 
E)  5

Question 6

What is the symbol for sodium?

Accepted Answer

A)  Na 
B)  S 
C)  So 
D)  N 
E)  Dm 
A)  Na 
B)  S 
C)  So 
D)  N 
E)  Dm

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

The smallest unit of an element that still retains the chemical and physical properties of that element is called a(n)

Accepted Answer

A)  isotope. 
B)  nucleus. 
C)  atom. 
D)  molecular bond. 
E)  neutrino. 
A)  isotope. 
B)  nucleus. 
C)  atom. 
D)  molecular bond. 
E)  neutrino.

Question 9

What substance is used in medicine to produce various images of organs and tissues?

Accepted Answer

A)  a mixture 
B)  a tracer 
C)  an emulsion 
D)  a colloid 
E)  a sensor 
A)  a mixture 
B)  a tracer 
C)  an emulsion 
D)  a colloid 
E)  a sensor

Question 10

ATP is called the energy currency of the body because it is a type of electricity.

Accepted Answer

A) True 
 B)False

Question 11

Isotopes of an element differ due to the number of

Accepted Answer

A)  protons. 
B)  neutrons. 
C)  electrons. 
D)  both protons and electrons. 
E)  neutrinos. 
A)  protons. 
B)  neutrons. 
C)  electrons. 
D)  both protons and electrons. 
E)  neutrinos.

Question 12

NaCl is not an organic molecule.

Accepted Answer

A) True 
 B)False

Question 13

Sugars with three to seven carbon atoms are called

Accepted Answer

A)  monosaccharides. 
B)  disaccharides. 
C)  trisaccharides. 
D)  polysaccharides. 
E)  steroids. 
A)  monosaccharides. 
B)  disaccharides. 
C)  trisaccharides. 
D)  polysaccharides. 
E)  steroids.

Question 14

After lunch,our digestive system will use the process of hydrolysis to break the food down into smaller subunits.

Accepted Answer

A) True 
 B)False

Question 15

Describe the structure and function of the DNA molecule.

Accepted Answer

DNA is composed of a phosphate group,nit

Question 16

In an atom,the number of protons always equals the number of

Accepted Answer

A)  electrons. 
B)  neutrons. 
C)  neutrons and protons. 
D)  quarks. 
E)  neutrinos. 
A)  electrons. 
B)  neutrons. 
C)  neutrons and protons. 
D)  quarks. 
E)  neutrinos.

Question 17

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

Accepted Answer

A) True 
 B)False

Question 18

Two or more atoms joined together through the sharing of electrons are called a(n)

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 19

In biology,calling something organic means that it was grown without the use of any type of herbicide.

Accepted Answer

A) True 
 B)False

Question 20

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

Accepted Answer

A) True 
 B)False

Exam 2: Chemistry of Life

Which of the following is not present in a nucleotide?

Starch,cellulose,and glycogen are alike in that they

List the properties of water.

Hydrogen bonds

A fat contains how many fatty acids?

What is the symbol for sodium?

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

The smallest unit of an element that still retains the chemical and physical properties of that element is called a(n)

What substance is used in medicine to produce various images of organs and tissues?

ATP is called the energy currency of the body because it is a type of electricity.

Isotopes of an element differ due to the number of

NaCl is not an organic molecule.

Sugars with three to seven carbon atoms are called

After lunch,our digestive system will use the process of hydrolysis to break the food down into smaller subunits.

Describe the structure and function of the DNA molecule.

In an atom,the number of protons always equals the number of

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

Two or more atoms joined together through the sharing of electrons are called a(n)

In biology,calling something organic means that it was grown without the use of any type of herbicide.

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

Exploring Life and Science

Cell Structure and Function

Organization and Regulation of Body Systems

Cardiovascular System: Heart and Blood Vessels

Cardiovascular System: Blood

The Lymphatic and Immune Systems

Infectious Diseases

Digestive System and Nutrition

Respiratory System

Urinary System

Skeletal System

Muscular System

Nervous System

Senses

Endocrine System

Reproductive System

Development and Aging

Patterns of Chromosome Inheritance

Cancer

Patterns of Genetic Inheritance

Dna Biology and Technology

Human Evolution

Ecology and the Nature of Ecosystems

Human Interactions With the Biosphere

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