Unit 2940: Comprehensive Introduction to Biology

1. Introduction to Biology

• Definition and scope of biology
• Importance of biology in science and everyday life
• Key biological concepts: life characteristics, levels of organization
• The scientific method in biological research
  • Observation, hypothesis, experimentation, analysis, conclusion

2. The Cell

• Cell theory and historical background
• Cell types: prokaryotic vs eukaryotic
  • Structural and functional differences
• Cell organelles and their functions
  • Nucleus, mitochondria, ribosomes, endoplasmic reticulum, Golgi apparatus, lysosomes, chloroplasts (in plants)
• Specialized cells and their roles

3. Biomolecules

• Overview of biomolecules and their significance
• Carbohydrates
  • Monosaccharides, disaccharides, polysaccharides
  • Functions: energy source and structural role
• Lipids
  • Types: fats, phospholipids, steroids
  • Functions: energy storage, membrane structure, signaling
• Proteins
  • Amino acids and peptide bonds
  • Levels of protein structure (primary to quaternary)
  • Functions: enzymes, structural components, transport
• Nucleic acids
  • DNA and RNA structure and function
  • Role in genetic information storage and transfer

4. Cell Membrane and Transport

• Structure of the cell membrane
  • Phospholipid bilayer, proteins, cholesterol, carbohydrates
• Membrane fluidity and selective permeability
• Types of transport mechanisms
  • Passive transport: diffusion, osmosis, facilitated diffusion
  • Active transport: pumps, endocytosis, exocytosis
• Maintaining cellular homeostasis

5. Cell Division

• Importance of cell division in growth and reproduction
• The cell cycle phases
  • Interphase (G1, S, G2), mitosis, cytokinesis
• Mitosis
  • Stages: prophase, metaphase, anaphase, telophase
  • Outcomes and biological significance
• Meiosis
  • Stages and differences from mitosis
  • Role in sexual reproduction and genetic diversity
• Regulation of the cell cycle
  • Checkpoints, cyclins, and cancer overview

6. Genetics and Heredity

• Basic principles of genetics
• Mendelian genetics
  • Laws of segregation and independent assortment
  • Punnett squares and inheritance patterns
• Genetic variations and mutations
• DNA replication and repair mechanisms
• Gene expression: transcription and translation

7. Evolution

• Overview of the theory of evolution
• Natural selection and adaptation
• Evidence supporting evolution
  • Fossil record, comparative anatomy, molecular biology
• Mechanisms of evolutionary change
  • Genetic drift, gene flow, mutation
• Impact of evolution on biodiversity

8. Ecology

• Interactions between organisms and their environment
• Ecosystem structure and function
• Energy flow in ecosystems
  • Food chains, food webs, trophic levels
• Nutrient cycling (carbon, nitrogen, water cycles)
• Population dynamics
• Human impacts on ecosystems
  • Pollution, habitat destruction, climate change

9. Classification of Living Organisms

• History and importance of biological classification
• Hierarchical classification system
  • Domain, kingdom, phylum, class, order, family, genus, species
• Taxonomy and binomial nomenclature
• Phylogenetic relationships and evolutionary trees
• Diversity of life forms on Earth

10. Human Biology

• Overview of human body systems
  • Circulatory, respiratory, digestive, nervous, endocrine, muscular, skeletal, immune, reproductive systems
• Physiological processes
• Health and disease
  • Common diseases, immune response
• Impact of lifestyle choices on health
  • Nutrition, exercise, substance use