Fundamentals of Biology and Genetics

From the study guide

Biology Revision Sheet

1. 📌 Essentials

  • Biology: Study of life, interactions, and cellular structures.
  • Characteristics of Life: Organization, metabolism, growth, reproduction, response.
  • Cell Theory: All organisms are made of cells; cells arise from pre-existing cells.
  • etic Material: DNA is the hereditary molecule, double helix structure.
  • Metabolic Processes: Cellular respiration (energy release) and photosynthesis (energy capture).
  • Levels of Organization: Cell → Tissue → Organ → Organ System → Organism.
  • Taxonomy Hierarchy: Kingdom, Phylum, Class, Order, Family, Genus, Species.
  • Macromolecules: Proteins, carbohydrates, lipids, nucleic acids.
  • Cell Membrane: Lipid bilayer with embedded proteins; controls substance entry/exit.
  • Cell Division: Mitosis for growth/repair; meiosis for reproduction and genetic diversity.
  • Genetic Code: Transcription (DNA to mRNA), translation (mRNA to protein).
  • Enzymes: Catalysts lowering activation energy; specific to substrates.
  • ATP: Main energy currency, produced in mitochondria.
  • Water: Cohesion, surface tension, essential for biological reactions.
  • Genetic Inheritance: Mendel’s laws, dominant/recessive, Punnett squares.
  • Genetic Technologies: PCR, cloning, gene editing.

2. 🧩 Key Structures & Components

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Practice quiz preview

1. What is the primary focus of biology as a scientific discipline?

2. Which level of biological organization includes organs such as the leaf?

3. Which enzyme is responsible for unzipping the DNA double helix during replication?

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Flashcard preview

Biology — definition?

Study of life and interactions

Cell — role?

Basic unit of life

Water — function?

Enables biological processes via hydrogen bonds

Biology — definition?

Study of life and living organisms.

Characteristics of Life — examples?

Organization, metabolism, growth, reproduction, response.

Cell Theory — principle?

All organisms made of cells; cells come from cells.

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What does the Fundamentals of Biology and Genetics study guide cover?

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The practice quiz has 9 multiple-choice questions, each with an explanation. Use it to check what you know and find your gaps.

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