Question 1

Our body is capable of converting starch into glycogen.

Accepted Answer

A) True 
 B)False

Question 2

A species has 29% of its DNA composed of the nucleotide containing guanine (G).What percent does the nitrogen base thymine (T)equal?

Accepted Answer

A)  58% 
B)  42% 
C)  21% 
D)  67% 
E)  29% 
A)  58% 
B)  42% 
C)  21% 
D)  67% 
E)  29%

Question 3

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 4

When two amino acids combine via a dehydration reaction,

Accepted Answer

A)  a peptide bond is formed. 
B)  the R groups are lost. 
C)  water is added to begin the reaction. 
D)  the carboxyl group of each join together. 
E)  the amino group of each join together. 
A)  a peptide bond is formed. 
B)  the R groups are lost. 
C)  water is added to begin the reaction. 
D)  the carboxyl group of each join together. 
E)  the amino group of each join together.

Question 5

NaCl is not an organic molecule.

Accepted Answer

A) True 
 B)False

Question 6

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 7

Which of the following is not present in a nucleotide?

Accepted Answer

A)  phosphate 
B)  nitrogenous base 
C)  5 ring sugar 
D)  an R group 
E)  a pentose 
A)  phosphate 
B)  nitrogenous base 
C)  5 ring sugar 
D)  an R group 
E)  a pentose

Question 8

Fats are usually of animal origin while oils are usually of plant origin.

Accepted Answer

A) True 
 B)False

Question 9

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.

Question 10

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

Accepted Answer

A) True 
 B)False

Question 11

A solution containing 0.00001 moles of H+ has a pH of

Accepted Answer

A)  3 
B)  5 
C)  7 
D)  9 
E)  11 
A)  3 
B)  5 
C)  7 
D)  9 
E)  11

Question 12

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 13

ATP carries energy in the form of high-energy

Accepted Answer

A)  carbohydrate bonds. 
B)  peptide bonds. 
C)  lipid bonds. 
D)  phosphate bonds. 
E)  hydrogen bonds 
A)  carbohydrate bonds. 
B)  peptide bonds. 
C)  lipid bonds. 
D)  phosphate bonds. 
E)  hydrogen bonds

Question 14

When an ATP molecule is used to supply energy,which of the following occurs?

Accepted Answer

A)  a phosphate bond is added 
B)  a phosphate bond is broken 
C)  oxygen is removed 
D)  oxygen is added 
E)  an adenine is added 
A)  a phosphate bond is added 
B)  a phosphate bond is broken 
C)  oxygen is removed 
D)  oxygen is added 
E)  an adenine is added

Question 15

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

Accepted Answer

A) True 
 B)False

Question 16

Radiation can produce both positive and negative effects for humans.

Accepted Answer

A) True 
 B)False

Question 17

All amino acids are alike in that their R groups are polar.

Accepted Answer

A) True 
 B)False

Question 18

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

Question 19

The function of RNA in the body is to store the genetic information in the nucleus.

Accepted Answer

A) True 
 B)False

Question 20

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.

Exam 2: Chemistry of Life

Our body is capable of converting starch into glycogen.

A species has 29% of its DNA composed of the nucleotide containing guanine (G).What percent does the nitrogen base thymine (T)equal?

What is the symbol for sodium?

When two amino acids combine via a dehydration reaction,

NaCl is not an organic molecule.

Isotopes of an element differ due to the number of

Which of the following is not present in a nucleotide?

Fats are usually of animal origin while oils are usually of plant origin.

The monomer unit of a protein is

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

A solution containing 0.00001 moles of H+ has a pH of

A fat contains how many fatty acids?

ATP carries energy in the form of high-energy

When an ATP molecule is used to supply energy,which of the following occurs?

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

Radiation can produce both positive and negative effects for humans.

All amino acids are alike in that their R groups are polar.

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

The function of RNA in the body is to store the genetic information in the nucleus.

Sugars with three to seven carbon atoms are called

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Organization and Regulation of Body Systems

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Cardiovascular System: Blood

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Digestive System and Nutrition

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Skeletal System

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Endocrine System

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Development and Aging

Patterns of Chromosome Inheritance

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Patterns of Genetic Inheritance

DNA Biology and Technology

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A solution containing 0.00001 moles of H⁺ has a pH of