What SBI4U focuses on

SBI4U provides students with opportunities for in-depth study of biological systems and life processes. Students investigate concepts related to biochemistry, metabolic processes, molecular genetics, homeostasis, and population dynamics through scientific inquiry and research.

How students apply learning

Students develop laboratory, investigation, analysis, and communication skills while exploring biological systems and evaluating the impact of scientific and technological developments on society and the environment.

Biological molecules and cellular processes

• Investigate structures and functions of carbohydrates, proteins, lipids, and nucleic acids.
• Study enzymes and biochemical reactions required for cellular function.
• Examine technological applications of enzymes in industries and medicine.
• Analyse biochemical compounds and their importance in living organisms.
• Time: 24 Hours

Energy transformations in living systems

• Investigate cellular respiration and photosynthesis processes.
• Analyse energy conversions and chemical reactions in organisms.
• Study factors affecting metabolic processes and efficiency.
• Evaluate technological applications related to metabolism and energy use.
• Time: 22 Hours

DNA and genetic technologies

• Explore DNA structure, replication, and protein synthesis.
• Investigate genetic modification and biotechnology applications.
• Examine ethical, legal, and social issues related to genetics.
• Study cellular processes involved in molecular genetics.
• Time: 22 Hours

Maintaining internal balance

• Investigate feedback mechanisms that maintain homeostasis.
• Study anatomy and physiology of human body systems.
• Examine environmental factors affecting internal conditions.
• Analyse the effects of chemicals and human activities on body systems.
• Time: 22 Hours

Population growth and sustainability

• Study population growth models and ecological relationships.
• Analyse factors affecting species populations and ecosystems.
• Evaluate ecological footprints and resource consumption.
• Investigate technological developments related to sustainability.
• Time: 22 Hours

How marks are calculated

• 70% — Course work, labs, assignments, projects, and evaluations.
• 30% — Final evaluation, culminating activity, and examination.
• Achievement Categories: Knowledge & Understanding (25%), Thinking (25%), Communication (25%), Application (25%).

Main course resources

• Biology 12 – Nelson
• Laboratory investigations and scientific inquiry activities.
• Teacher-prepared notes, PowerPoints, and solved examples.
• Selected online biology and biotechnology resources.