Question 1

If the pH of a person's blood is 7.4, it would be described as:

Accepted Answer

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

Question 2

Describe the Bohr model of the atom.

Accepted Answer

The Bohr model of the atom, proposed by

Question 3

The most abundant and important compound(s) in the body is(are):

Accepted Answer

A)  air. 
B)  water. 
C)  proteins. 
D)  nucleic acids. 
A)  air. 
B)  water. 
C)  proteins. 
D)  nucleic acids.

Question 4

If an atom with a total of nine electrons were to ionically bond with an atom with a total of three electrons, what would occur?

Accepted Answer

A)  The atom with nine electrons would share one of its electrons with the other atom. 
B)  The atom with nine electrons would lose one of its electrons, and the atom with three electrons would accept it. 
C)  The atom with nine electrons would accept one of the electrons from the atom with three electrons. 
D)  The atom with three electrons would share one of its electrons with the other atom. 
A)  The atom with nine electrons would share one of its electrons with the other atom. 
B)  The atom with nine electrons would lose one of its electrons, and the atom with three electrons would accept it. 
C)  The atom with nine electrons would accept one of the electrons from the atom with three electrons. 
D)  The atom with three electrons would share one of its electrons with the other atom.

Question 5

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

Accepted Answer

A) True 
 B)False

Question 6

Gamma radiation has less mass than alpha or beta radiation.

Accepted Answer

A) True 
 B)False

Question 7

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 8

The term atomic weight refers to the average mass number for a particular element based on the typical proportions of different isotopes found in nature.

Accepted Answer

A) True 
 B)False

Question 9

Match each term to its corresponding descriptive phrase.
-Value determined by adding the number of protons and neutrons in an atom

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 10

A substance that releases an OH- ion in solution is called a base.

Accepted Answer

A) True 
 B)False

Question 11

Chemistry can be defined as the science that deals with the structure, arrangement, and composition of substances and the reactions they undergo.

Accepted Answer

A) True 
 B)False

Question 12

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

Accepted Answer

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

Question 13

Tastes bitter

Accepted Answer

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

Question 14

Carbon has an atomic number of 6. The number of electrons found in the first shell is:

Accepted Answer

A)  two. 
B)  four. 
C)  six. 
D)  eight. 
A)  two. 
B)  four. 
C)  six. 
D)  eight.

Question 15

Releases a hydroxide ion into solution, which raises the pH

Accepted Answer

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

Question 16

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

Accepted Answer

A) True 
 B)False

Question 17

Hydrogen can form only when the hydrogen atom is covalently bonded to:

Accepted Answer

A)  an oxygen atom. 
B)  a nitrogen atom. 
C)  a fluorine. 
D)  any of the above. 
A)  an oxygen atom. 
B)  a nitrogen atom. 
C)  a fluorine. 
D)  any of the above.

Question 18

The type of reaction in which substances are combined to form more complex substances is called a(n) _____ reaction.

Accepted Answer

A)  reversible 
B)  exchange 
C)  synthesis 
D)  decomposition 
A)  reversible 
B)  exchange 
C)  synthesis 
D)  decomposition

Question 19

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 20

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

Exam 3: Chemical Basis of Life

If the pH of a person's blood is 7.4, it would be described as:

Describe the Bohr model of the atom.

The most abundant and important compound(s) in the body is(are):

If an atom with a total of nine electrons were to ionically bond with an atom with a total of three electrons, what would occur?

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

Gamma radiation has less mass than alpha or beta radiation.

Which of the following is not a subatomic particle?

The term atomic weight refers to the average mass number for a particular element based on the typical proportions of different isotopes found in nature.

Match each term to its corresponding descriptive phrase. -Value determined by adding the number of protons and neutrons in an atom

A substance that releases an OH- ion in solution is called a base.

Chemistry can be defined as the science that deals with the structure, arrangement, and composition of substances and the reactions they undergo.

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

Tastes bitter

Carbon has an atomic number of 6. The number of electrons found in the first shell is:

Releases a hydroxide ion into solution, which raises the pH

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

Hydrogen can form only when the hydrogen atom is covalently bonded to:

The type of reaction in which substances are combined to form more complex substances is called a(n) _____ reaction.

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

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

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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