Textbook Question
The outermost electron shell of an atom is known as the _____________ shell.
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Ch. 2 - The Chemistry of Microbiology
Bauman6th EditionMicrobiology with Diseases by TaxonomyISBN: 9780134832302
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Table of contents
- Ch. 1 - A Brief History of Microbiology31
- Ch. 2 - The Chemistry of Microbiology28
- Ch. 3 - Cell Structure and Function39
- Ch. 4 - Microscopy, Staining, and Classification25
- Ch. 5 - Microbial Metabolism51
- Ch. 6 - Microbial Nutrition and Growth37
- Ch. 7 - Microbial Genetics51
- Ch. 8 - Recombinant DNA Technology21
- Ch. 9 - Controlling Microbial Growth in the Environment36
- Ch. 10 - Controlling Microbial Growth in the Body: Antimicrobial Drugs21
- Ch. 11 - Characterizing and Classifying Prokaryotes29
- Ch. 12 - Characterizing and Classifying Eukaryotes34
- Ch. 13 - Characterizing and Classifying Viruses, Viroids, and Prions23
- Ch. 14 - Infection, Infectious Diseases, and Epidemiology35
- Ch. 15 - Innate Immunity34
- Ch. 16 - Adaptive Immunity21
- Ch. 17 - Immunization and Immune Testing29
- Ch. 18 - Immune Disorders22
- Ch. 19 - Pathogenic Gram-Positive Bacteria25
- Ch. 20 - Pathogenic Gram-Negative Cocci and Bacilli28
- Ch. 21 - Rickettsias, Chlamydias, Spirochetes, and Vibrios25
- Ch. 22 - Pathogenic Fungi47
- Ch. 23 - Parasitic Protozoa, Helminths, and Arthropod Vectors44
- Ch. 24 - Pathogenic DNA Viruses23
- Ch. 25 - Pathogenic RNA Viruses30
- Ch. 26 - Applied and Industrial Microbiology29
- Ch. 27 - Microbial Ecology and Microbiomes22
Bauman6th EditionMicrobiology with Diseases by TaxonomyISBN: 9780134832302Not the one you use?Change textbook
Chapter 2, Problem 1
List three main types of chemical bonds, and give an example of each.
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Identify the three main types of chemical bonds commonly discussed in microbiology and chemistry: ionic bonds, covalent bonds, and hydrogen bonds.
Explain that an ionic bond is formed when one atom donates an electron to another, resulting in oppositely charged ions that attract each other. An example is the bond between sodium (Na⁺) and chloride (Cl⁻) ions in sodium chloride (NaCl).
Describe a covalent bond as a bond where atoms share one or more pairs of electrons to achieve stability. An example is the bond between two hydrogen atoms (H) in a hydrogen molecule (H₂).
Clarify that a hydrogen bond is a weaker interaction that occurs when a hydrogen atom covalently bonded to an electronegative atom (like oxygen or nitrogen) is attracted to another electronegative atom. An example is the hydrogen bonding between water molecules (H₂O).
Summarize by listing each bond type alongside its example to reinforce understanding.
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Ionic Bonds
Ionic bonds form when one atom transfers electrons to another, creating positively and negatively charged ions that attract each other. This bond typically occurs between metals and nonmetals. An example is sodium chloride (NaCl), where sodium donates an electron to chlorine.
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Ionic Bonds
Covalent Bonds
Covalent bonds involve the sharing of electron pairs between atoms, usually nonmetals, to achieve stability. These bonds can be single, double, or triple depending on the number of shared electron pairs. Water (H2O) is an example, where oxygen shares electrons with hydrogen atoms.
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Hydrogen Bonds
Hydrogen bonds are weak attractions between a hydrogen atom covalently bonded to an electronegative atom (like oxygen or nitrogen) and another electronegative atom. They are crucial in stabilizing structures like DNA and proteins. An example is the hydrogen bonding between water molecules.
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Related Practice
Textbook Question
Which of the following structures have no electrical charge?
a. Protons
b. Electrons
c. Neutrons
d. Ions
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Textbook Question
The atomic mass of an atom most closely approximates the sum of the masses of all its __________.
a. protons
b. isotopes
c. electrons
d protons and neutrons
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Textbook Question
In the following molecule, label a portion that shows only primary structure; label two types of secondary structure; circle the tertiary structure.
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Textbook Question
The type of chemical bond between atoms with nearly equal electronegativities is called a(n) _____________ bond.
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Textbook Question
Shown is the amino acid tryptophan. Put the letter “C” at the site of every carbon atom. Label the amino group, the carboxyl group, and the side group.
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