Biology Help - Learn by Concept

Learn by Concept

Concepts

• High School Biology

  • Cell Biology

    • Cell Division

      • Meiosis+4 topics

        • Understanding Crossing Over

        • Understanding Oogenesis

        • Understanding Spermatogenesis

        • Understanding Stages of Meiosis

      • Mitosis+2 topics

        • Understanding Stages of Mitosis

        • Understanding Structures of Mitosis

      • The Cell Cycle+2 topics

        • Understanding Cell Cycle Regulation

        • Understanding Stages of the Cell Cycle

    • Cell Functions

      • Cell Respiration+3 topics

        • Understanding Glycolysis

        • Understanding the Citric Acid Cycle

        • Understanding the Electron Transport Chain

      • Photosynthesis+2 topics

        • Understanding Light Reactions

        • Understanding the Calvin Cycle

      • Transport and Signaling+4 topics

        • Understanding Cytoplasmic Proteins

        • Understanding Endocytosis and Exocytosis

        • Understanding Receptors and Ligands

        • Understanding Second Messenger Systems

    • Cell Structures and Organelles

      • Cellular Differences+3 topics

        • Understanding Plant Cell Differences

        • Understanding Prokaryotic Cell Differences

        • Understanding Specialized Cell Structures

      • Common Cell Structures+6 topics

        • Understanding Mitochondria and Chloroplasts

        • Understanding Other Cell Structures

        • Understanding Ribosomes

        • Understanding the Cell Membrane and Cell Wall

        • Understanding the Endoplasmic Reticulum and Golgi Body

        • Understanding the Nucleus and Nucleolus

  • DNA, RNA, and Proteins

    • DNA

      • DNA Replication+3 topics

        • Understanding Replication Processes

        • Understanding Replication Proteins

        • Understanding Replication Regulation

      • DNA Structure+4 topics

        • Understanding Chromosomes and Genes

        • Understanding Nucleotides

        • Understanding the DNA Backbone

        • Understanding the Double Helix

    • Proteins

      • Protein Function+3 topics

        • Understanding Enzymes

        • Understanding Inhibitors

        • Understanding Specific Protein Functions

      • Protein Structure+3 topics

        • Understanding Active Sites

        • Understanding Protein Classifications

        • Understanding Protein Folding

      • Translation+1 topic

        • Understanding Translation Processes

    • RNA

      • RNA Structure+2 topics

        • Understanding Differences with DNA

        • Understanding RNA Backbone

      • Transcription+3 topics

        • Understanding Transcription Processes

        • Understanding Transcription Proteins

        • Understanding Transcription Regulation

  • Ecology

    • Chemical Cycles

      • Understanding the Carbon Cycle

      • Understanding the Nitrogen Cycle

      • Understanding the Water Cycle

    • Food Pyramids and Food Webs

      • Identifying Levels

      • Understanding Energy Flow

  • Genetics and Evolution

    • Evolutionary Principles

      • Identify evidence for evolution

      • Understanding Biological Fitness

      • Understanding Natural Selection

      • Understanding Other Evolution Principles

      • Understanding Phylogenetics

      • Understanding Speciation

    • Genetics Principles

      • Genes and DNA+3 topics

        • Understanding Gene Coding

        • Understanding Gene Regulation

        • Understanding Prokaryotic Genes

      • Hardy-Weinberg Equilibrium+2 topics

        • Understanding Hardy-Weinberg Calculations

        • Understanding Hardy-Weinberg Conditions

      • Inheritance Patterns+4 topics

        • Understanding Autosomal/Sex-Linked

        • Understanding Chromosomes

        • Understanding Codominance and Incomplete Dominance

        • Understanding Dominant/Recessive

      • Mutation+2 topics

        • Understanding Mutation and Evolution

        • Understanding Types of Mutation

  • Introductory Topics

    • Attributes of Life

      • Understanding Properties of Carbon

      • Understanding Properties of Water

      • Understanding Requirements for Life and Cell Theory

    • Feedback and Homeostasis

      • Understanding Biological Equilibrium

      • Understanding Negative Feedback

      • Understanding Positive Feedback

    • Macromolecules

      • Understanding Lipids and Carbohydrates

      • Understanding Proteins and Nucleic Acids

  • Tissues, Organs, and Organ Systems

    • Connective Tissue

      • Understanding Properties of Connective Tissue

      • Understanding Types of Connective Tissue

    • Epithelium and Endothelium

      • Understanding Endothelium

      • Understanding Properties of Epithelium

      • Understanding Types of Epithelial Cells

    • Muscle Tissue

      • Understanding Properties of Muscle Tissue

      • Understanding Types of Muscle Tissue

    • Nervous Tissue

      • Understanding Properties of Nervous Tissue

      • Understanding Types of Nervous Tissue

    • Organs and Organ Systems

      • Circulatory System+3 topics

        • Understanding Circulatory Function

        • Understanding Circulatory Vessels

        • Understanding the Heart

      • Digestive System+3 topics

        • Understanding Digestive Functions

        • Understanding Digestive Organs

        • Understanding Hormones and Digestion

      • Endocrine System+4 topics

        • Understanding Glands

        • Understanding Negative Feedback Loops

        • Understanding Specific Hormones

        • Understanding Types of Hormones

      • Excretory System+4 topics

        • Understanding Excretory Organs

        • Understanding Hormones and the Excretory System

        • Understanding Nephron Function

        • Understanding Nephron Structure

      • Immune System+3 topics

        • Understanding Adaptive Immunity

        • Understanding Cells of the Immune System

        • Understanding Innate Immunity

      • Musculoskeletal System+3 topics

        • Understanding Bones

        • Understanding Muscles

        • Understanding Sliding Filament Theory

      • Nervous System+4 topics

        • Understanding Action Potentials

        • Understanding Divisions of the Nervous System

        • Understanding Neurotransmitters

        • Understanding Structures of the Nervous System

      • Reproductive System+2 topics

        • Understanding Reproductive Functions

        • Understanding Reproductive Organs

      • Respiratory System+2 topics

        • Understanding Respiratory Functions

        • Understanding Respiratory Organs