O-Level Biology: The Human Body

Sec 4

Course Intro

The respiratory, circulatory, and digestive systems as well as other parts of the human body are the main topics of discussion in this course.

Course Description

Dive deep into the O-Level Biology syllabus as we explore the intricacies of the human body. From understanding the digestive system’s functions to unraveling the complexities of respiration, and excretion, this course will provide you with a comprehensive understanding of how our bodies function and maintain equilibrium.

Who is this Course for?

  • For O-Level students studying Biology who are eager to expand their knowledge of the human body.
  • Students who enjoy learning with an open discussion.
  • Students struggling to understand concepts/ key words in secondary 4
  • Students struggling to a answer open ended questions in these topics.
  •  It is ideal for those who seek a deeper understanding of topics such as nutrition, transport, respiration, excretion, homeostasis, and infectious diseases.

What you will Learn?

  • The intricate processes of human digestion and the role of enzymes in breaking down food.
  • How blood vessels function to transport essential substances throughout the body.
  • The mechanisms behind respiration and the exchange of gases in the alveoli.
  • The process of excretion, including ultrafiltration, selective reabsorption, and the importance of the kidneys.
  • The causes, transmission, prevention, and treatment of infectious diseases.

Key Takeaways

  • Possess a comprehensive understanding of the human body’s digestive, circulatory, respiratory, and excretory systems.
  • Be able to explain the intricate processes involved in maintaining homeostasis.
  • Understand the causes, transmission, and prevention of infectious diseases.
  • Develop a solid foundation in O-Level Biology, paving the way for further academic success.
  • Cultivate a sense of wonder and appreciation for the marvels of the human body.

Why Learn from doerdo Tuition Course?

Experienced Teachers: Benefit from the expertise of our experienced ex-MOE teachers who guide you through the complexities of the syllabus.

Student Performance Visibility: Parents can easily monitor their child’s progress and performance through Doerdo’s comprehensive tracking system.

After-Class Support: Receive dedicated support from our teaching team to clarify doubts and reinforce learning.

A.I. Based Tests and Homework: Access AI-powered tests and homework assignments that enhance understanding and practice.

Engaging Learning Experience: Enjoy interactive lessons, engaging multimedia resources, and a student-centric approach that makes learning enjoyable.

Course Curriculum

 Nutrition in Humans – This topic focuses on the human digestive system, covering functions of various digestive system parts, the role of enzymes in digestion, the structure of a villus, and absorption. Examples include understanding peristalsis, the functions of amylase, maltase, protease, and lipase, and how the structure of a villus facilitates absorption.
Transport in Humans – This topic explores the main blood vessels, such as arteries, veins, and capillaries, and their functions. It also covers the components of blood and their roles in transport and defense. Examples include understanding the structure and function of the heart, the significance of red and white blood cells, plasma, and platelets, as well as discussing coronary heart disease and preventative measures.
Human Respiration – The topic covers the process of breathing, the structure of an alveolus for gaseous exchange, and aerobic and anaerobic respiration in human cells. Examples include understanding the process of breathing, the structure of an alveolus, and differentiating between aerobic and anaerobic respiration.
Excretion – This topic covers excretion, including ultrafiltration, selective reabsorption, factors affecting urine composition, and the importance of the kidneys. Examples include understanding the process of ultrafiltration, the concept of selective reabsorption, factors influencing urine composition, and the significance of the kidneys in maintaining homeostasis.
Infectious Diseases – This topic addresses organisms affecting human health, such as influenza and pneumococcal diseases. It covers the transmission and prevention of these diseases, as well as the misuse and overuse of antibiotics. Examples include understanding how influenza and pneumococcus are transmitted, methods to reduce transmission, and the consequences of antibiotic misuse.

Course Type


Class Type

Small Group

Group Size



1.5 hrs

Num of Sessions




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Learn from doerTeachers


Young Wai Keong Vincent

Ex MOE Teacher
18+ Years Exp
Math & Science Subject Expert

Mary Lin An Chin

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Suriawati Binte Sulaimi

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Tan Qianru

Ex MOE Teacher
11+ Years Exp
Chinese Subject Expert

Yee Hong Ng

Ex MOE Teacher
12+ Years Exp
Chinese Subject Expert

Nur Aqilah Binte Mohammad Mazni

Ex MOE Teacher
4+ Years Exp
English Subject Expert