Question 1

Dalton named the atom after the Greek word for invisible.

Accepted Answer

A) True 
 B)False

Question 2

The hydrogen isotope tritium consists of:

Accepted Answer

A)  one proton. 
B)  one proton and one neutron. 
C)  two protons and one neutron. 
D)  one proton and two neutrons. 
A)  one proton. 
B)  one proton and one neutron. 
C)  two protons and one neutron. 
D)  one proton and two neutrons.

Question 3

A + B  AB is an example of a(n) _____ reaction.

Accepted Answer

A)  decomposition 
B)  reversible 
C)  exchange 
D)  Both A and B are correct. 
A)  decomposition 
B)  reversible 
C)  exchange 
D)  Both A and B are correct.

Question 4

pH is the negative logarithm of the hydrogen ion concentration.

Accepted Answer

A) True 
 B)False

Question 5

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 6

There cannot be an electrically neutral ion.

Accepted Answer

A) True 
 B)False

Question 7

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

Accepted Answer

A) True 
 B)False

Question 8

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 9

All of the following substances are organic except:

Accepted Answer

A)  lipids. 
B)  electrolytes. 
C)  carbohydrates. 
D)  proteins. 
A)  lipids. 
B)  electrolytes. 
C)  carbohydrates. 
D)  proteins.

Question 10

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

Accepted Answer

A) True 
 B)False

Question 11

According to the general formula, in decomposition reactions, the number of reactants is usually greater than the number of products.

Accepted Answer

A) True 
 B)False

Question 12

Name and briefly describe the types of chemical bonds discussed in this chapter.

Accepted Answer

The types of chemical bonds discussed in

Question 13

The digestion of food is an example of a synthesis reaction.

Accepted Answer

A) True 
 B)False

Question 14

Catabolism and anabolism are major types of metabolic activity.

Accepted Answer

A) True 
 B)False

Question 15

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 16

The element oxygen has an atomic number of 8, which means it contains:

Accepted Answer

A)  four protons and four neutrons. 
B)  eight protons. 
C)  eight neutrons. 
D)  four protons and four electrons. 
A)  four protons and four neutrons. 
B)  eight protons. 
C)  eight neutrons. 
D)  four protons and four electrons.

Question 17

Releases a hydrogen ion into a solution, which lowers the pH

Accepted Answer

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

Question 18

Hydrogen bonds between atoms do not form molecules or compounds.

Accepted Answer

A) True 
 B)False

Question 19

Litmus paper will turn red in the presence of a base.

Accepted Answer

A) True 
 B)False

Question 20

Explain the types of chemical reactions discussed in this chapter, and give the formula for each.

Accepted Answer

The answer of Explain the types of chemical reactions discussed...

Exam 3: Chemical Basis of Life

Dalton named the atom after the Greek word for invisible.

The hydrogen isotope tritium consists of:

A + B AB is an example of a(n) _____ reaction.

pH is the negative logarithm of the hydrogen ion concentration.

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

There cannot be an electrically neutral ion.

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

Substances that accept hydrogen ions are called:

All of the following substances are organic except:

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

According to the general formula, in decomposition reactions, the number of reactants is usually greater than the number of products.

Name and briefly describe the types of chemical bonds discussed in this chapter.

The digestion of food is an example of a synthesis reaction.

Catabolism and anabolism are major types of metabolic activity.

Salts:

The element oxygen has an atomic number of 8, which means it contains:

Releases a hydrogen ion into a solution, which lowers the pH

Hydrogen bonds between atoms do not form molecules or compounds.

Litmus paper will turn red in the presence of a base.

Explain the types of chemical reactions discussed in this chapter, and give the formula for each.

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 and Development

Genetics and Heredity

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