Question 1

The formation of sucrose involves the removal of a molecule of water. This is called:

Accepted Answer

A) hydrolysis. 
B) oxidation. 
C) decomposition. 
D) dehydration synthesis. 
A) hydrolysis. 
B) oxidation. 
C) decomposition. 
D) dehydration synthesis.

Question 2

Four elements are considered to be the major elements in the body.

Accepted Answer

A) True 
 B)False

Question 3

Match each term to its corresponding descriptive phrase.
-Bond that requires a polar molecule

Accepted Answer

A) Proton 
B) Neutron 
C) Electron 
D) Isotopes 
E) Ionic bonds
F)Covalent bonds
G)Octet rule
H)Atomic number
I)Atomic mass
J)Hydrogen bonds 
A) Proton 
B) Neutron 
C) Electron 
D) Isotopes 
E) Ionic bonds
F)Covalent bonds
G)Octet rule
H)Atomic number
I)Atomic mass
J)Hydrogen bonds

Question 4

Salts:

Accepted Answer

A) can form as the result of a chemical reaction between acids and bases. 
B) are electrolytes. 
C) will form crystals if the water is removed. 
D) All of the above are correct. 
A) can form as the result of a chemical reaction between acids and bases. 
B) are electrolytes. 
C) will form crystals if the water is removed. 
D) All of the above are correct.

Question 5

Fifty percent or more of a normal adult's body weight is water.

Accepted Answer

A) True 
 B)False

Question 6

The approximate pH of gastric fluid is:

Accepted Answer

A) 10. 
B) 8. 
C) 4. 
D) 2. 
A) 10. 
B) 8. 
C) 4. 
D) 2.

Question 7

Which of the following is not true of all isotopes of oxygen?

Accepted Answer

A) They can all react with two hydrogen atoms to form water. 
B) They have the same number of protons. 
C) They have the same atomic mass. 
D) All of the above are true of isotopes of oxygen. 
A) They can all react with two hydrogen atoms to form water. 
B) They have the same number of protons. 
C) They have the same atomic mass. 
D) All of the above are true of isotopes of oxygen.

Question 8

According to the general formula, in exchange reactions, the number of reactants and the number of products are usually equal.

Accepted Answer

A) True 
 B)False

Question 9

Which of the following represents a trace element in the body?

Accepted Answer

A) Sulfur 
B) Chlorine 
C) Iron 
D) Phosphorus 
A) Sulfur 
B) Chlorine 
C) Iron 
D) Phosphorus

Question 10

Which of the following is not a subatomic particle?

Accepted Answer

A) Proton 
B) Electron 
C) Radon 
D) Neutron 
A) Proton 
B) Electron 
C) Radon 
D) Neutron

Question 11

A solution with a pH of 3 has 100 times more hydrogen ions than a solution with a pH of 5.

Accepted Answer

A) True 
 B)False

Question 12

A solution containing the same number of H⁺ ions and OH- ions would have a pH of zero.

Accepted Answer

A) True 
 B)False

Question 13

The nucleus of the atom will always have a positive charge.

Accepted Answer

A) True 
 B)False

Question 14

Substances that accept hydrogen ions are called:

Accepted Answer

A) acids. 
B) bases. 
C) buffers. 
D) salts. 
A) acids. 
B) bases. 
C) buffers. 
D) salts.

Question 15

Turns blue litmus paper red

Accepted Answer

A)  Acid 
B)  Base 
A)  Acid 
B)  Base

Question 16

An isotope of an element contains different numbers of ____ from other atoms of the same element.

Accepted Answer

A) electrons 
B) protons 
C) neutrons 
D) both protons and neutrons 
A) electrons 
B) protons 
C) neutrons 
D) both protons and neutrons

Question 17

Explain what is meant by anabolism and catabolism, and name a process that is an example of each.

Accepted Answer

The answer of Explain what is meant by anabolism and...

Question 18

The type of reaction most likely to release energy is a(n) _____ reaction.

Accepted Answer

A) synthesis 
B) decomposition 
C) exchange 
D) All of the above reactions are equally likely to release energy. 
A) synthesis 
B) decomposition 
C) exchange 
D) All of the above reactions are equally likely to release energy.

Question 19

Ionic bonds are chemical bonds formed by the:

Accepted Answer

A) sharing of electrons between molecules. 
B) donation of protons from one atom to another. 
C) transfer of electrons from one atom to another. 
D) acceptance of neutrons from one atom by another. 
A) sharing of electrons between molecules. 
B) donation of protons from one atom to another. 
C) transfer of electrons from one atom to another. 
D) acceptance of neutrons from one atom by another.

Question 20

A few inorganic compounds contain both C-C bonds but no inorganic compound has a C-H bond.

Accepted Answer

A) True 
 B)False

Exam 3: Chemistry of Life

The formation of sucrose involves the removal of a molecule of water. This is called:

Four elements are considered to be the major elements in the body.

Match each term to its corresponding descriptive phrase. -Bond that requires a polar molecule

Salts:

Fifty percent or more of a normal adult's body weight is water.

The approximate pH of gastric fluid is:

Which of the following is not true of all isotopes of oxygen?

According to the general formula, in exchange reactions, the number of reactants and the number of products are usually equal.

Which of the following represents a trace element in the body?

Which of the following is not a subatomic particle?

A solution with a pH of 3 has 100 times more hydrogen ions than a solution with a pH of 5.

A solution containing the same number of H⁺ ions and OH- ions would have a pH of zero.

The nucleus of the atom will always have a positive charge.

Substances that accept hydrogen ions are called:

Turns blue litmus paper red

An isotope of an element contains different numbers of ____ from other atoms of the same element.

Explain what is meant by anabolism and catabolism, and name a process that is an example of each.

The type of reaction most likely to release energy is a(n) _____ reaction.

Ionic bonds are chemical bonds formed by the:

A few inorganic compounds contain both C-C bonds but no inorganic compound has a C-H bond.

Organization of the Body

Homeostasis

Biomolecules

Cell Structure

Cell Function

Cell Growth and Development

Introduction to Tissues

Tissue Types

Skin

Skeletal Tissues

Axial Skeleton

Appendicular Skeleton

Articulations

Axial Muscles

Appendicular Muscles

Muscle Contraction

Nervous System Cells

Nerve Signaling

Central Nervous System

Peripheral Nervous System

Autonomic Nervous System

General Senses

Special Senses

Endocrine Regulation

Endocrine Glands

Blood

Heart

Blood Vessels

Circulation of the Blood

Lymphatic System

Innate Immunity

Adaptive Immunity

Stress

Respiratory Tract

Ventilation

Gas Exchange Transport

Upper Digestive Tract

Lower Digestive Tract

Digestion and Absorption

Nutrition and Metabolism

Urinary System

Fluid and Electrolyte Balance

Acid-Base Balance

Male Reproductive System

Female Reproductive System

Growth, Development, and Aging

Genetics and Heredity

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