Guest Hollow’s Biology Textbook Table of Contents

Welcome to Guest Hollow’s Online High School Biology Curriculum Textbook!
Guest Hollow’s Biology textbook was designed to be used / read online and is formatted for online use. I recommend using the online textbook, but realize that some families would like a paper copy of the book.

This adapted PDF version is being provided as a courtesy and doesn’t provide the best viewing / formatting experience. This printable text may also contain some minor formatting errors. But, hey, it’s free! 😉

You can take the PDF file to your local print shop and have it printed and comb bound or hole punched, to place in a binder.

Click here for a printable PDF version of the textbook.

If you’d like to read the textbook online (which is recommended), click on the links below!

Table of Contents

  • Chapter 1

What is Biology?

This chapter provides an introduction to scientific investigations, methods, observations, and communication.

1.1 Science and the Natural World

1.2 Biology: The Study of Life

  • Chapter 2

The Chemistry of Life

This chapter covers matter, the significance of carbon, lipids, proteins, nucleic acids, amino acids, biochemical, and chemical properties and reactions.

2.1 Matter and Organic Compounds

2.2 Biochemical Reactions

2.3 Water, Acids, and Bases

  • Chapter 3

Cellular Structure and Function

This chapter introduces cell structure and function, features of prokaryotic, eukaryotic, plant, and animal cells. General structures and functions of DNA, RNA, protein, cell transport, and homeostasis.

3.1 Introduction to Cells

3.2 Cell Structures

3.3 Cell Transport and Homeostasis

  • Chapter 4

Photosynthesis and Cellular Respiration

This chapter introduces energy, glucose and ATP’s role, stages of photosynthesis, light reactions, the Calvin cycle, cellular respiration, glycolysis, the Krebs cycle, the electron transport chain, anaerobic and aerobic respiration, and fermentation.

4.1 Energy for Life

4.2 Photosynthesis: Sugar as Food

4.3 Powering the Cell: Cellular Respiration

4.4 Anaerobic Respiration

  • Chapter 5

The Cell Cycle, Mitosis, and Meiosis

This chapter covers cell division, the process of producing new cells, and sexual and asexual reproduction.

5.1 Cell Division and the Cell Cycle

5.2 Chromosomes and Mitosis

5.3 Reproduction and Meiosis

  • Chapter 6

Gregor Mendel and Genetics

This chapter covers Mendelian genetics, inheritance, probability, dominant, recessive, and sex-linked traits.

6.1 Mendel’s Investigations

6.2 Mendelian Inheritance

  • Chapter 7

Molecular Genetics: From DNA to Proteins

This chapter covers DNA, RNA, protein synthesis, mutation, and regulation of gene expression.

7.1 DNA and RNA

7.2 Protein Synthesis

7.3 Mutation

7.4 Regulation of Gene Expression

  • Chapter 8

Human Genetics and Biotechnology

This chapter covers the human genome and genetic diseases/disorders, including autosomal vs. sex-linked inheritance patterns, DNA technology, The Human Genome Project, and gene cloning.

8.1 Human Chromosomes and Genes

8.2 Human Inheritance

8.3 Biotechnology

  • Chapter 9


This chapter introduces Linnaean classification.

9.1 Classification

  • Chapter 10

Creationism vs. the Theory of Evolution

This chapter gives you a foundation to understand creationism vs. evolution.

10.1 Exposing the Flaws in Evolution

  • Chapter 11

The Principles of Ecology

This chapter covers ecology and its relationship to energy, ecosystems, and the water, carbon, and nitrogen cycles.

11.1 The Science of Ecology

11.2 Recycling Matter

11.3 Biomes

  • Chapter 12

Communities and Populations

This chapter covers communities as part of biotic ecosystems, populations: size, density, dispersion, and growth, biodiversity, natural resources, and climate change.

12.1 Community Interactions

12.2 Characteristics of Populations

  • Chapter 13

Microorganisms: Prokaryotes and Viruses

This chapter serves as an introduction to the specifics of prokaryotes and viruses, as well as the interactions between bacteria and other organisms.

13.1 Prokaryotes

13.2 Viruses

  • Chapter 14

Eukaryotes: Protists and Fungi

This chapter serves as an introduction to the Kingdom Protista, the three types of protists: animal-like, plant-like, and fungus-like protists, and the classification and ecology of fungi.

14.1 Introduction to Protists

14.2 Types of Protists

14.3 Introduction to Funji

14.4 Ecology of Funji

14.5 Protists, Fungi, and Human Disease

  • Chapter 15

Plant Classification

This chapter is an introduction to the plant kingdom and covers the four categories of plants: nonvascular plants, vascular plants, seed plants, and flowering plants.

15.1 Introduction to the Plant Kingdom

15.2 Four Types of Plants

  • Chapter 16

Plant Biology

This chapter discusses plant tissues, including roots, stems, leaves, and plant growth.

16.1 Plant Tissues and Growth

16.2 Plant Organs, Roots, Stems, and Leaves

16.3 Variation in Plant Life Cycles

16.4 Plant Features and Responses

  • Chapter 17

Introduction to Animals

This chapter gives an overview of animals, including invertebrates, discussing characteristics and classification.

17.1 Overview of Animals

17.2 Overview of Invertebrates

  • Chapter 18

From Sponges to Invertebrate Chordates

This chapter provides an overview of sponges, cnidarians, flatworms, and roundworms, discussing structure, function, reproduction, and ecology.

18.1 Sponges, Cnidarians, Flatworms, and Roundworms

18.2 Mollusks and Annelids

18.3 Arthropods and Insects

18.4 Echinoderms and Invertebrate Chordates

  • Chapter 19

From Fish to Birds

This chapter is an overview of vertebrates from fishes to birds covering their characteristics and classification.

19.1 Overview of Vertebrates

19.2 Fish

19.3 Amphibians

19.4 Reptiles

19.5 Birds

  • Chapter 20

Mammals and Animal Behavior

This chapter provides an overview of mammals covering mammalian traits, reproduction, and classification. Animal behavior is also discussed, including learning and communication, as well as migration, aggression, courtship, and mating.

20.1 Mammalian Traits

20.2 Reproduction in Mammals

20.3 Classification of Mammals

20.4 Overview of Animal Behavior

Changes/edits were made to the original ck12 biology text by Guest Hollow. Changes are not endorsed by ck12 in any way.