All Chapters
Ch. 1 - Introduction to Biology
Ch. 2 - Chemistry
Ch. 3 - Water
Ch. 4 - Biomolecules
Ch. 5 - Cell Components
Ch. 6 - The Membrane
Ch. 7 - Energy and Metabolism
Ch. 8 - Respiration
Ch. 9 - Photosynthesis
Ch. 10 - Cell Signaling
Ch. 11 - Cell Division
Ch. 12 - Meiosis
Ch. 13 - Mendelian Genetics
Ch. 14 - DNA Synthesis
Ch. 15 - Gene Expression
Ch. 16 - Regulation of Expression
Ch. 17 - Viruses
Ch. 18 - Biotechnology
Ch. 19 - Genomics
Ch. 20 - Development
Ch. 21 - Evolution by Natural Selection
Ch. 22 - Evolution of Populations
Ch. 23 - Speciation
Ch. 24 - History of Life on Earth
Ch. 25 - Phylogeny
Ch. 26 - Prokaryotes
Ch. 28 - Protists
Ch. 29 - Plants
Ch. 30 - Fungi
Ch. 31 - Overview of Animals
Ch. 32 - Invertebrates
Ch. 33 - Vertebrates
Ch. 34 - Plant Anatomy
Ch. 35 - Vascular Plant Transport
Ch. 36 - Soil
Ch. 37 - Plant Reproduction
Ch. 38 - Plant Sensation and Response
Ch. 39 - Animal Form and Function
Ch. 40 - Digestive System
Ch. 41 - Circulatory System
Ch. 42 - Immune System
Ch. 43 - Osmoregulation and Excretion
Ch. 44 - Endocrine System
Ch. 45 - Animal Reproduction
Ch. 46 - Nervous System
Ch. 47 - Sensory Systems
Ch. 48 - Muscle Systems
Ch. 49 - Ecology
Ch. 50 - Animal Behavior
Ch. 51 - Population Ecology
Ch. 52 - Community Ecology
Ch. 53 - Ecosystems
Ch. 54 - Conservation Biology
Sections
Introduction to Water
Properties of Water- Cohesion and Adhesion
Properties of Water- Density
Properties of Water- Thermal
Properties of Water- The Universal Solvent
Acids and Bases
pH Scale

Concept #1: Acids and Bases

Practice: Which of the following reactions is most consistent with that of a base?

a) NH4+ → NH3 + H+

b) H2CO3 → HCO3- + H+

c) NaOH → Na+ + OH-

d) HCl → H+ + Cl-

Practice: The addition of an acid like HCl to an aqueous solution (pure water) would result in:

a) An increase in pH only.

b) Both the release of H+ and an increase in pH.

c) Both the release of H+ and a decrease in pH.

d) The release of H+ into the solution only.

e) A decrease in pH only.

Practice: In what way(s) do bases work to increase the pH of a solution?

a) Increasing the concentration of hydroxide ions.

b) Decreasing the concentration of hydrogen ions.

c) Decreasing the concentration of hydroxide ions.

d) Increasing the concentration of hydrogen ions.

e) Both a & b.

f) Both c & d.