Question 1

Which is not true about enzymes?

Accepted Answer

A) found in all cells 
B) are catalysts 
C) participate in the cell's chemical reactions 
D) can be denaturated by heat and other agents 
E) have high-energy bonds between phosphates 
A) found in all cells 
B) are catalysts 
C) participate in the cell's chemical reactions 
D) can be denaturated by heat and other agents 
E) have high-energy bonds between phosphates E

Question 2

Which amino acid contains sulfur atoms that form covalent disulfide bonds in its tertiary structure?

Accepted Answer

A) valine 
B) cysteine 
C) serine 
D) alanine 
E) tyrosine 
A) valine 
B) cysteine 
C) serine 
D) alanine 
E) tyrosine B

Question 3

An amino acid contains all of the following except:

Accepted Answer

A) an amino grou. 
B) a carboxyl group 
C) a variable R group 
D) a carbon atom 
E) a nitrogenous base 
A) an amino grou. 
B) a carboxyl group 
C) a variable R group 
D) a carbon atom 
E) a nitrogenous base E

Question 4

Two or more atoms bonded together are called a/an

Accepted Answer

A) ion. 
B) isotope. 
C) element. 
D) electrolyte. 
E) molecule. 
A) ion. 
B) isotope. 
C) element. 
D) electrolyte. 
E) molecule.

Question 5

Which of the following represents a synthesis reaction?

Accepted Answer

A) AB $\rarr$ A + B 
B) A + B $\rarr$ AB 
C) AB + XY $\rarr$ AX + BY 
D) AB + XY $\leftrightarrow$ AX + BY 
E) None of the choices are correct. 
A) AB $\rarr$ A + B 
B) A + B $\rarr$ AB 
C) AB + XY $\rarr$ AX + BY 
D) AB + XY $\leftrightarrow$ AX + BY 
E) None of the choices are correct.

Question 6

What part of a phospholipid forms hydrophobic tails?

Accepted Answer

A) fatty acids 
B) glycerol 
C) phosphate 
D) alcohol 
E) All of the choices are correct. 
A) fatty acids 
B) glycerol 
C) phosphate 
D) alcohol 
E) All of the choices are correct.

Question 7

The neutrons of an atom are

Accepted Answer

A) always equal to the number of protons in an atom. 
B) found in the nucleus. 
C) used to determine atomic number. 
D) positively charged. 
E) moving in pathways called orbitals. 
A) always equal to the number of protons in an atom. 
B) found in the nucleus. 
C) used to determine atomic number. 
D) positively charged. 
E) moving in pathways called orbitals.

Question 8

All of the following are monosaccharides except

Accepted Answer

A) glucose. 
B) glycogen. 
C) fructose. 
D) ribose. 
E) deoxyribose. 
A) glucose. 
B) glycogen. 
C) fructose. 
D) ribose. 
E) deoxyribose.

Question 9

The type of chemical bond linking amino acids together is a(n):

Accepted Answer

A) glycosidic bond 
B) peptide bond 
C) ester bond 
D) ionic bond 
E) hydrogen bond 
A) glycosidic bond 
B) peptide bond 
C) ester bond 
D) ionic bond 
E) hydrogen bond

Question 10

Polar molecules are composed of covalently bonded

Accepted Answer

A) identical atoms. 
B) carbon atoms. 
C) ions. 
D) atoms of different electronegativity. 
E) atoms of identical electronegativity. 
A) identical atoms. 
B) carbon atoms. 
C) ions. 
D) atoms of different electronegativity. 
E) atoms of identical electronegativity.

Question 11

During protein synthesis, _____ RNA is made to be a copy of a gene from the DNA.

Accepted Answer

The answer of During protein synthesis, _____ RNA is made...

Question 12

Reactions involving electron release are called ______ reactions.

Accepted Answer

A) oxidation. 
B) reduction. 
C) ionization. 
D) decomposition. 
E) dissolution. 
A) oxidation. 
B) reduction. 
C) ionization. 
D) decomposition. 
E) dissolution.

Question 13

The building blocks of an enzyme are

Accepted Answer

A) nucleotides. 
B) glycerol and fatty acids. 
C) monosaccharides. 
D) phosphate, glycerol, fatty acids. 
E) amino acids. 
A) nucleotides. 
B) glycerol and fatty acids. 
C) monosaccharides. 
D) phosphate, glycerol, fatty acids. 
E) amino acids.

Question 14

What is the maximum number of electrons in the second energy shell of an atom?

Accepted Answer

A) 2 
B) 4 
C) 8 
D) 18 
E) 32 
A) 2 
B) 4 
C) 8 
D) 18 
E) 32

Question 15

Cations are

Accepted Answer

A) charged subatomic particles. 
B) atoms that have gained electrons. 
C) radioactive isotopes. 
D) capable of forming ionic bonds with anions. 
E) atoms without protons. 
A) charged subatomic particles. 
B) atoms that have gained electrons. 
C) radioactive isotopes. 
D) capable of forming ionic bonds with anions. 
E) atoms without protons.

Question 16

Polar molecules have more reactivity compared to nonpolar molecules.

Accepted Answer

A) True 
 B)False

Question 17

The subatomic particles that surround the nucleus are the

Accepted Answer

A) electrons. 
B) protons. 
C) neutrons. 
D) protons and neutrons. 
E) protons and electrons. 
A) electrons. 
B) protons. 
C) neutrons. 
D) protons and neutrons. 
E) protons and electrons.

Question 18

Which term does not belong in this list?

Accepted Answer

A) lactic acid 
B) vinegar 
C) hydrogen ion donor 
D) pH 8 
E) acidic 
A) lactic acid 
B) vinegar 
C) hydrogen ion donor 
D) pH 8 
E) acidic

Question 19

Elements have predictable chemical properties.

Accepted Answer

A) True 
 B)False

Question 20

The polynucleotide strands of DNA are linked along their length by __________ bonds between the bases.

Accepted Answer

A) covalent 
B) ionic 
C) Van der Waals 
D) double 
E) hydrogen 
A) covalent 
B) ionic 
C) Van der Waals 
D) double 
E) hydrogen

Exam 2: The Chemistry of Biology

Which is not true about enzymes?

Which amino acid contains sulfur atoms that form covalent disulfide bonds in its tertiary structure?

An amino acid contains all of the following except:

Two or more atoms bonded together are called a/an

Which of the following represents a synthesis reaction?

What part of a phospholipid forms hydrophobic tails?

The neutrons of an atom are

All of the following are monosaccharides except

The type of chemical bond linking amino acids together is a(n):

Polar molecules are composed of covalently bonded

During protein synthesis, _____ RNA is made to be a copy of a gene from the DNA.

Reactions involving electron release are called ______ reactions.

The building blocks of an enzyme are

What is the maximum number of electrons in the second energy shell of an atom?

Cations are

Polar molecules have more reactivity compared to nonpolar molecules.

The subatomic particles that surround the nucleus are the

Which term does not belong in this list?

Elements have predictable chemical properties.

The polynucleotide strands of DNA are linked along their length by __________ bonds between the bases.

The Main Themes of Microbiology

Tools of the Laboratory: Methods of Studying Microorganisms

A Survey of Prokaryotic Cells and Microorganisms

A Survey of Eukaryotic Cells and Microorganisms

An Introduction to Viruses

Microbial Nutrition, Ecology, and Growth

An Introduction to Microbial Metabolism: the Chemical Crossroads of Life

An Introduction to Microbial Genetics

Genetic Engineering: a Revolution in Molecular Biology

Physical and Chemical Agents for Microbial Control

Drugs, Microbes, Host-The Elements of Chemotherapy

Microbe-Human Interactions: Infection, Disease, and Epidemiology

An Introduction to Host Defenses and Innate Immunities

Adaptive, Specific Immunity and Immunization

Disorders in Immunity

Procedures for Identifying Pathogens and Diagnosing Infections

The Gram-Positive and Gram-Negative Cocci of Medical Importance

The Gram-Positive Bacilli of Medical Importance

The Gram-Negative Bacilli of Medical Importance

Miscellaneous Bacterial Agents of Disease

The Fungi of Medical Importance

The Parasites of Medical Importance

Introduction to Viruses That Infect Humans: the Dna Viruses

The Rna Viruses That Infect Humans

Environmental Microbiology

Applied and Industrial Microbiology

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