Lesson Notes By Weeks and Term v4 - SHS 3
ANATOMY AND PHYSIOLOGY
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ANATOMY AND PHYSIOLOGY
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Subject: Biomedical Science
Class: SHS 3
Term: 2nd Term
Week: 11
Grade code: 3.2.1.LI.3
Strand code: 2
Sub-strand code: 1
Content standard code: 3.2.1.CS.1
Indicator code: 3.2.1.LI.3
Theme: HUMAN BODY SYSTEMS
Subtheme: ANATOMY AND PHYSIOLOGY
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This lesson explores one of the most fundamental processes in our bodies: how we get energy to live, work, and play. We will investigate how different body systems—like the ones that digest our food, help us breathe, and pump our blood—do not work in isolation. Instead, they function as a perfectly coordinated team to produce the energy (ATP) that powers every single cell. Understanding this interconnectedness is crucial for appreciating human health, the importance of a balanced diet (like eating our *waakye* or *banku*), and what happens when one part of the system is not working well.
The Core Process: Cellular Respiration
At the very heart of energy generation is a chemical process that occurs in the mitochondria of our cells. This process is called aerobic cellular respiration. It's how our cells convert the chemical energy stored in food into a usable form of energy called Adenosine Triphosphate (ATP).
The overall chemical equation is: C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O + ATP (Energy)
Let's break this down: C₆H₁₂O₆ (Glucose): This is the fuel. It comes from the carbohydrate-rich foods we eat, like yam, cassava, rice, and kenkey. 6O₂ (Oxygen): This is the reactant that helps "burn" the fuel. We get it from the air we breathe. 6CO₂ (Carbon Dioxide): A waste product that we breathe out. 6H₂O (Water): Another waste product. ATP (Energy): This is the main goal! ATP is the universal energy currency of the cell. It powers everything from muscle contraction to thinking.