Welcome to Section 2 of the Human Biology Masterclass.
In Lesson 7, we shift from the organization of the human body to the chemistry that makes life possible. Every heartbeat, thought, movement, and cellular process depends on chemical reactions involving biological molecules.
In this lesson, you'll learn:
• Why water is essential for life and human physiology
• The chemical properties of water, including polarity, hydrogen bonding, cohesion, and heat capacity
• The four major classes of biological molecules: carbohydrates, proteins, lipids, and nucleic acids
• How carbohydrates are structured and why glucose is an important fuel for cellular energy production
• The difference between monosaccharides, disaccharides, and polysaccharides
• How glycogen stores glucose in the liver and muscles
• The four levels of protein structure and how protein shape determines function
• The major functions of proteins, including enzymes, transport proteins, structural proteins, antibodies, and hormones
• How triglycerides, phospholipids, and steroids function in the human body
• How DNA, RNA, and ATP fit into the broader family of nucleotides and nucleic acids
• Why maintaining blood pH within a narrow range is essential for life
From water and glucose to proteins, fats, DNA, ATP, and pH regulation, this lesson introduces the chemical building blocks that support virtually every process in the human body.
Understanding these molecules provides the foundation for studying nutrition, metabolism, energy production, and human physiology in the lessons ahead.
Section 2 — Energy, Metabolism & Chemistry
Next lesson: Lesson 8 – What Happens to Food After You Eat?
Continue the complete Human Biology Masterclass through the playlist on Human Science Academy.
Subscribe for educational content covering human biology, anatomy, physiology, nutrition science, exercise science, metabolism, and human health.
#HumanBiology #Biochemistry #BiologicalMolecules #Carbohydrates #Proteins #Lipids #NucleicAcids #ATP #DNA #Metabolism #HumanPhysiology #ScienceEducation #HumanBiologyMasterclass
