Question 1

Which statement is NOT true of pH and human body fluids?

Accepted Answer

A) Blood has a very narrow normal pH range. 
B) Gastric juice may have a pH of 2. 
C) The pH of urine may be acidic or alkaline and still be in the normal range. 
D) The normal pH range of intestinal secretions is acidic. 
A) Blood has a very narrow normal pH range. 
B) Gastric juice may have a pH of 2. 
C) The pH of urine may be acidic or alkaline and still be in the normal range. 
D) The normal pH range of intestinal secretions is acidic.

Question 2

A synonym for dissociation is:

Accepted Answer

A) decomposition 
B) ionization 
C) synthesis 
D) reformulation 
A) decomposition 
B) ionization 
C) synthesis 
D) reformulation

Question 3

A solution with a pH of 7.5 would be:

Accepted Answer

A) slightly acidic 
B) strongly acidic 
C) slightly alkaline 
D) strongly alkaline 
A) slightly acidic 
B) strongly acidic 
C) slightly alkaline 
D) strongly alkaline

Question 4

The element that provides strength in bones and teeth is:

Accepted Answer

A) iron 
B) calcium 
C) zinc 
D) iodine 
A) iron 
B) calcium 
C) zinc 
D) iodine

Question 5

If too much carbon dioxide accumulates in cells and tissues:

Accepted Answer

A) the pH will decrease 
B) cell membranes will rupture 
C) the pH will increase 
D) cell membranes will shrivel 
A) the pH will decrease 
B) cell membranes will rupture 
C) the pH will increase 
D) cell membranes will shrivel

Question 6

Which statement is NOT true of the pH scale?

Accepted Answer

A) It ranges from 0 through 14. 
B) It is a measure of the hydrogen and hydroxyl ions in a solution. 
C) The more hydrogen ions present,the higher the pH. 
D) A pH of 7 is considered neutral. 
A) It ranges from 0 through 14. 
B) It is a measure of the hydrogen and hydroxyl ions in a solution. 
C) The more hydrogen ions present,the higher the pH. 
D) A pH of 7 is considered neutral.

Question 7

Which of these is NOT a product of cell respiration?

Accepted Answer

A) water 
B) carbon dioxide 
C) ATP 
D) oxygen 
A) water 
B) carbon dioxide 
C) ATP 
D) oxygen

Question 8

The element that is part of some amino acids and forms bonds in proteins is:

Accepted Answer

A) sulfur 
B) calcium 
C) copper 
D) potassium 
A) sulfur 
B) calcium 
C) copper 
D) potassium

Question 9

The fact that water changes temperature slowly is important for:

Accepted Answer

A) digestion of food 
B) pumping of the heart 
C) keeping a fairly constant body temperature 
D) nerve impulse transmission 
A) digestion of food 
B) pumping of the heart 
C) keeping a fairly constant body temperature 
D) nerve impulse transmission

Question 10

The oligosaccharides are attached to:

Accepted Answer

A) DNA and RNA as part of the genetic code 
B) certain enzymes as part of the active site 
C) structural proteins to provide stability 
D) cell membranes as self antigens 
A) DNA and RNA as part of the genetic code 
B) certain enzymes as part of the active site 
C) structural proteins to provide stability 
D) cell membranes as self antigens

Question 11

Which statement is NOT true of amino acids?

Accepted Answer

A) They all contain the elements C,H,O,and N. 
B) They are the subunits of proteins. 
C) A chain of amino acids is linked by ionic bonds. 
D) There are about 20 different amino acids in human proteins. 
A) They all contain the elements C,H,O,and N. 
B) They are the subunits of proteins. 
C) A chain of amino acids is linked by ionic bonds. 
D) There are about 20 different amino acids in human proteins.

Question 12

A solution that has more hydrogen ions than hydroxyl ions is:

Accepted Answer

A) a base 
B) an acid 
C) neutral 
D) none of these 
A) a base 
B) an acid 
C) neutral 
D) none of these

Question 13

The purpose of a buffer system is to:

Accepted Answer

A) maintain a normal growth rate 
B) ensure proper digestion 
C) prevent drastic changes in pH 
D) speed up nerve impulses 
A) maintain a normal growth rate 
B) ensure proper digestion 
C) prevent drastic changes in pH 
D) speed up nerve impulses

Question 14

If the body fluids are becoming too alkaline,this means that there are not enough _________ ions in the fluid.

Accepted Answer

A) sodium 
B) potassium 
C) hydroxyl 
D) hydrogen 
A) sodium 
B) potassium 
C) hydroxyl 
D) hydrogen

Question 15

Which statement is NOT true of the elements in the human body?

Accepted Answer

A) Iron is part of hemoglobin. 
B) The hormone thyroxine contains copper. 
C) Sodium is needed for nerve-impulse transmission. 
D) Phosphorus is part of bones and teeth. 
A) Iron is part of hemoglobin. 
B) The hormone thyroxine contains copper. 
C) Sodium is needed for nerve-impulse transmission. 
D) Phosphorus is part of bones and teeth.

Question 16

A blood pH of 7.36 is:

Accepted Answer

A) slightly alkaline and in the normal range 
B) slightly acidic and in the normal range 
C) slightly alkaline and too high for the normal range 
D) slightly acidic and too low for the normal range 
A) slightly alkaline and in the normal range 
B) slightly acidic and in the normal range 
C) slightly alkaline and too high for the normal range 
D) slightly acidic and too low for the normal range

Question 17

The element that is part of the hormone thyroxine is:

Accepted Answer

A) calcium 
B) cobalt 
C) iodine 
D) sodium 
A) calcium 
B) cobalt 
C) iodine 
D) sodium

Question 18

A solution that has equal numbers of hydrogen and hydroxyl ions is:

Accepted Answer

A) neutral 
B) a base 
C) an acid 
D) none of these 
A) neutral 
B) a base 
C) an acid 
D) none of these

Question 19

On the pH scale,acids are indicated by numbers:

Accepted Answer

A) above 10 
B) below 10 
C) above 7 
D) below 7 
A) above 10 
B) below 10 
C) above 7 
D) below 7

Question 20

Fatty acids and glycerol are the subunits of:

Accepted Answer

A) phospholipids 
B) true fats 
C) both A and B 
D) both A and B,and cholesterol 
A) phospholipids 
B) true fats 
C) both A and B 
D) both A and B,and cholesterol

Exam 3:Some Basic Chemistry-Part C

Which statement is NOT true of pH and human body fluids?

A synonym for dissociation is:

A solution with a pH of 7.5 would be:

The element that provides strength in bones and teeth is:

If too much carbon dioxide accumulates in cells and tissues:

Which statement is NOT true of the pH scale?

Which of these is NOT a product of cell respiration?

The element that is part of some amino acids and forms bonds in proteins is:

The fact that water changes temperature slowly is important for:

The oligosaccharides are attached to:

Which statement is NOT true of amino acids?

A solution that has more hydrogen ions than hydroxyl ions is:

The purpose of a buffer system is to:

If the body fluids are becoming too alkaline,this means that there are not enough _________ ions in the fluid.

Which statement is NOT true of the elements in the human body?

A blood pH of 7.36 is:

The element that is part of the hormone thyroxine is:

A solution that has equal numbers of hydrogen and hydroxyl ions is:

On the pH scale,acids are indicated by numbers:

Fatty acids and glycerol are the subunits of:

Organization and General Plan of the Body-Part A

Organization and General Plan of the Body-Part B

Organization and General Plan of the Body-Part C

Some Basic Chemistry-Part A

Some Basic Chemistry-Part B

Cells-Part A

Cells-Part B

Cells-Part C

Tissues and Membranes-Part A

Tissues and Membranes-Part B

Tissues and Membranes-Part C

The Integumentary System-Part A

The Integumentary System-Part B

The Integumentary System-Part C

The Skeletal System-Part A

The Skeletal System-Part B

The Skeletal System-Part C

The Muscular System-Part A

The Muscular System-Part B

The Muscular System-Part C

The Nervous System-Part A

The Nervous System-Part B

The Nervous System-Part C

The Senses-Part A

The Senses-Part B

The Senses-Part C

The Endocrine System-Part A

The Endocrine System-Part B

The Endocrine System-Part C

Blood-Part A

Blood-Part B

Blood-Part C

The Heart-Part A

The Heart-Part B

The Heart-Part C

The Vascular System-Part A

The Vascular System-Part B

The Vascular System-Part C

The Lymphatic System and Immunity-Part A

The Lymphatic System and Immunity-Part B

The Lymphatic System and Immunity-Part C

The Respiratory System-Part A

The Respiratory System-Part B

The Respiratory System-Part C

The Digestive System-Part A

The Digestive System-Part B

The Digestive System-Part C

Body Temperature and Metabolism-Part A

Body Temperature and Metabolism-Part B

Body Temperature and Metabolism-Part C

The Urinary System-Part A

The Urinary System-Part B

The Urinary System-Part C

Fluid–Electrolyte and Acid–Base Balance-Part A

Fluid–Electrolyte and Acid–Base Balance-Part B

Fluid–Electrolyte and Acid–Base Balance-Part C

The Reproductive Systems-Part A

The Reproductive Systems-Part B

The Reproductive Systems-Part C