Question 1

Polysaccharides:

Accepted Answer

A) include ribose, fructose and glucose. 
B) include cholesterol and vitamin D. 
C) are monosaccharides joined by glycosidic bonds. 
D) are found only in eukaryotic cells. 
A) include ribose, fructose and glucose. 
B) include cholesterol and vitamin D. 
C) are monosaccharides joined by glycosidic bonds. 
D) are found only in eukaryotic cells.

Question 2

Fatty acids that are _________ have ___________ .

Accepted Answer

A) saturated; lost their secondary structure 
B) unsaturated, a double bond between two carbons that have lost hydrogen atoms 
C) saturated, one or more double bonds 
D) denatured, all the hydrogen it can. 
A) saturated; lost their secondary structure 
B) unsaturated, a double bond between two carbons that have lost hydrogen atoms 
C) saturated, one or more double bonds 
D) denatured, all the hydrogen it can.

Question 3

In salt,a sodium atom loses an electron to a chlorine atom.What is true about the chloride ion found in salt?

Accepted Answer

A) It has one less electron than proton. 
B) It is less chemically stable than a chlorine atom. 
C) It is an anion. 
D) It is in a covalent bond. 
A) It has one less electron than proton. 
B) It is less chemically stable than a chlorine atom. 
C) It is an anion. 
D) It is in a covalent bond.

Question 4

Which of the following pH values would indicate the weakest acid?

Accepted Answer

A) 2 
B) 3 
C) 4 
D) 5 
A) 2 
B) 3 
C) 4 
D) 5

Question 5

Chemical bonds usually form between atoms through the interaction of:

Accepted Answer

A) protons 
B) neutrons 
C) electrons 
D) isotopes 
A) protons 
B) neutrons 
C) electrons 
D) isotopes

Question 6

When sodium hydroxide,a strong base,is added to water,the pH of the solution _____.

Accepted Answer

A) goes up. 
B) remains the same. 
C) goes down. 
D) cannot be determined. 
A) goes up. 
B) remains the same. 
C) goes down. 
D) cannot be determined.

Question 7

When glucose is dissolved in water,the water is the ________ and the glucose is the ________.

Accepted Answer

A) solvent, solute 
B) solvent, solution 
C) solute, solvent 
D) solute, solution 
A) solvent, solute 
B) solvent, solution 
C) solute, solvent 
D) solute, solution

Question 8

Which of the following pairs is mismatched?

Accepted Answer

A) Protein-amino acids 
B) Nucleic acids-nucleotides 
C) Polysaccharides - simple sugars 
D) Fats-aldehyde 
A) Protein-amino acids 
B) Nucleic acids-nucleotides 
C) Polysaccharides - simple sugars 
D) Fats-aldehyde

Question 9

Which statement is true for radioisotopes?

Accepted Answer

A) Radioisotopes have unstable nuclei that emit subatomic particles and radiation. 
B) All radioisotopes have gained electrons. 
C) Radioisotopes are useful to guard against radioactive elements. 
D) Radioisotopes contain particles too large to form true solutions. 
A) Radioisotopes have unstable nuclei that emit subatomic particles and radiation. 
B) All radioisotopes have gained electrons. 
C) Radioisotopes are useful to guard against radioactive elements. 
D) Radioisotopes contain particles too large to form true solutions.

Question 10

The double helix is a structure associated with:

Accepted Answer

A) disaccharides 
B) a compound with hydrogen bonds 
C) lipids 
D) DNA 
A) disaccharides 
B) a compound with hydrogen bonds 
C) lipids 
D) DNA

Question 11

Which is a false statement about water?

Accepted Answer

A) Water molecules are polar. 
B) Water has a high specific heat because of the extensive covalent bonding between molecules. 
C) Hydrogen atoms in water form dipoles with a partial positive charge. 
D) Water's polarity allows for many ionic compounds to be dissolved in it. 
A) Water molecules are polar. 
B) Water has a high specific heat because of the extensive covalent bonding between molecules. 
C) Hydrogen atoms in water form dipoles with a partial positive charge. 
D) Water's polarity allows for many ionic compounds to be dissolved in it.

Question 12

Water plays an important role in the chemical reactions in cells,including:

Accepted Answer

A) denaturing proteins 
B) stabilizing the primary structure of a protein 
C) forming covalent bonds with proteins 
D) breaking down large proteins into amino acids in hydrolysis reactions 
A) denaturing proteins 
B) stabilizing the primary structure of a protein 
C) forming covalent bonds with proteins 
D) breaking down large proteins into amino acids in hydrolysis reactions

Question 13

Which of the following is a three carbon sugar alcohol?

Accepted Answer

A) a 
B) b 
C) c 
D) d 
A) a 
B) b 
C) c 
D) d

Question 14

The atomic nucleus consists of:

Accepted Answer

A) cations and anions 
B) protons, electrons and neutrons 
C) protons and neutrons 
D) solutes and colloids 
A) cations and anions 
B) protons, electrons and neutrons 
C) protons and neutrons 
D) solutes and colloids

Question 15

Two or more atoms combine to form a/an:

Accepted Answer

A) cation. 
B) molecule. 
C) protein. 
D) ion. 
A) cation. 
B) molecule. 
C) protein. 
D) ion.

Question 16

Chemical reactions occur:

Accepted Answer

A) between elements that have magnetic repulsion. 
B) rarely as very few elements have electrons in their outer shell. 
C) during metabolism as they are necessary for making the substance of cells. 
D) only in eukaryotes as they require a nucleus. 
A) between elements that have magnetic repulsion. 
B) rarely as very few elements have electrons in their outer shell. 
C) during metabolism as they are necessary for making the substance of cells. 
D) only in eukaryotes as they require a nucleus.

Question 17

The three fundamental particles of the atom are _____.

Accepted Answer

A) elements, molecules, and compounds 
B) ions, cations, and anions. 
C) proteins, lipids, and sugars 
D) protons, neutrons, and electrons. 
A) elements, molecules, and compounds 
B) ions, cations, and anions. 
C) proteins, lipids, and sugars 
D) protons, neutrons, and electrons.

Question 18

How many electrons are in the first shell of the sodium atom?

Accepted Answer

A) one 
B) two 
C) four 
D) six 
A) one 
B) two 
C) four 
D) six

Question 19

When pairs of electrons are shared between two atoms,the result is a/an _______ bond.

Accepted Answer

A) ionic 
B) covalent 
C) hydrogen 
D) carbonic 
A) ionic 
B) covalent 
C) hydrogen 
D) carbonic

Question 20

The specific sequence of amino acids in a protein is known as its:

Accepted Answer

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

Exam 2: Fundamentals of Chemistry

Polysaccharides:

Fatty acids that are _________ have ___________ .

In salt,a sodium atom loses an electron to a chlorine atom.What is true about the chloride ion found in salt?

Which of the following pH values would indicate the weakest acid?

Chemical bonds usually form between atoms through the interaction of:

When sodium hydroxide,a strong base,is added to water,the pH of the solution _____.

When glucose is dissolved in water,the water is the ________ and the glucose is the ________.

Which of the following pairs is mismatched?

Which statement is true for radioisotopes?

The double helix is a structure associated with:

Which is a false statement about water?

Water plays an important role in the chemical reactions in cells,including:

Which of the following is a three carbon sugar alcohol?

The atomic nucleus consists of:

Two or more atoms combine to form a/an:

Chemical reactions occur:

The three fundamental particles of the atom are _____.

How many electrons are in the first shell of the sodium atom?

When pairs of electrons are shared between two atoms,the result is a/an _______ bond.

The specific sequence of amino acids in a protein is known as its:

Scope and History of Microbiology

Microscopy and Staining

Characteristics of Prokaryotic and Eukaryotic Cells

Essential Concepts of Metabolism

Growth and Culturing of Bacteria

Microbial Genetics

Gene Transfer and Genetic Engineering

An Introduction to Taxonomy: the Bacteria

Viruses

Eukaryotic Microorganisms and Parasites

Sterilization and Disinfection

Antimicrobial Therapy

Host-Microbe Relationships and Disease Processes

Epidemiology and Nosocomial Infections

Innate Host Defenses

Immunology I: Basic Principles of Adaptive Immunity and Immunization

Immunology Ii: Immunological Disorders and Tests

Diseases of the Skin and Eyes; Wounds and Bites

Urogenital and Sexually Transmitted Diseases

Diseases of the Respiratory System

Oral and Gastrointestinal Diseases

Cardiovascular, lymphatic and Systemic Disease

Diseases of the Nervous System

Environmental Microbiology

Applied Microbiology

Filters

Fatty acids that are _ have ___ .

When glucose is dissolved in water,the water is the and the glucose is the .