Ontario Grade 12 Biology (SBI4U) curriculum and lessons

The course map includes Biochemistry, Metabolic Processes, Molecular Genetics, and 3 other sections. Follow the complete section list above for the full study path.

درس زیست‌شناسی پایه دوازدهم انتاریو (SBI4U) چه مباحثی دارد؟ از جمله مباحث این درس زیست‌شیمی، فرایندهای سوخت‌وسازی، ژنتیک مولکولی است. فهرست کامل بخش‌ها در بالای صفحه قرار دارد.

2 of 69 written lessons are currently published and free to read. Open a linked lesson in the section map above. Check the official Ontario curriculum for exact requirements.

درس‌ها و برنامهٔ درسی زیست‌شناسی پایه دوازدهم انتاریو را از کجا پیدا کنم؟ اکنون 2 درس از 69 درس نوشتاری منتشر شده و خواندن آن‌ها رایگان است. درس‌های دارای پیوند را در نقشهٔ بخش‌های بالا باز کنید. برای شرایط دقیق به برنامهٔ درسی رسمی انتاریو مراجعه کنید.

Biomolecules, enzymes, membrane transport, and cellular organelles.

Cellular respiration, photosynthesis, matter, and energy transfer.

DNA replication, protein synthesis, mutations, and biotechnology.

Feedback, hormones, nervous and excretory systems, and regulation.

Growth models, carrying capacity, species interactions, and human impact.

An enzyme is a biological catalyst. Its three-dimensional structure helps form an active site that can bind particular substrates.…

Homeostasis is the regulation of internal conditions within a workable range. A feedback model can help explain how an organism…

Plan, conduct, evaluate, and communicate safe biology investigations; explore life-science careers.

• A1.1 · Form research questions, predictions, and testable hypotheses (written lesson not published)
• A1.2 · Choose suitable instruments, materials, and inquiry procedures (written lesson not published)
• A1.3 · Locate relevant print and electronic research sources (written lesson not published)
• A1.4 · Plan investigations using safe laboratory practices (written lesson not published)
• A1.5 · Conduct safe inquiries while controlling relevant variables (written lesson not published)
• A1.6 · Record accurate observations and data in suitable formats (written lesson not published)
• A1.7 · Organize information and document research sources (written lesson not published)
• A1.8 · Analyse data against predictions and evaluate error or bias (written lesson not published)
• A1.9 · Evaluate research sources for logic, accuracy, and reliability (written lesson not published)
• A1.10 · Justify conclusions with inquiry results and scientific knowledge (written lesson not published)
• A1.11 · Communicate procedures, results, and conclusions clearly (written lesson not published)
• A1.12 · Use biological diagrams, symbols, graphs, and appropriate units (written lesson not published)
• A1.13 · Report calculations with suitable accuracy and precision (written lesson not published)
• A2.1 · Describe life-science careers and training pathways (written lesson not published)
• A2.2 · Describe scientists, including Canadians, and their contributions (written lesson not published)

Connect biomolecules, cell membranes, enzymes, and biochemical reactions.

• B1.1 · Analyse enzyme applications in food and pharmaceutical industries (written lesson not published)
• B1.2 · Evaluate advances in cell biology and their applications (written lesson not published)
• B2.1 · Use terminology for biomolecules, bonding, and transport (written lesson not published)
• B2.2 · Investigate movement of substances across a membrane (written lesson not published)
• B2.3 · Model carbohydrates, proteins, lipids, and nucleic acids (written lesson not published)
• B2.4 · Test food samples for biochemical compounds (written lesson not published)
• B2.5 · Investigate an enzyme or transport process in cells (written lesson not published)
• B3.1 · Explain roles of major cellular organelles (written lesson not published)
• B3.2 · Relate biomolecule structure to function (written lesson not published)
• B3.3 · Identify functional groups in biological molecules (written lesson not published)
• B3.4 · Explain enzyme structure and mechanism (published written lesson)
• B3.5 · Compare redox, hydrolysis, condensation, and neutralization (written lesson not published)
• B3.6 · Explain the fluid mosaic membrane and transport mechanisms (written lesson not published)

Trace matter and energy through cellular respiration and photosynthesis.

• C1.1 · Analyse metabolism in interactions between living and nonliving systems (written lesson not published)
• C1.2 · Assess relevance of cell biology and related technologies (written lesson not published)
• C2.1 · Use terminology for energy carriers, respiration, and photosynthesis (written lesson not published)
• C2.2 · Investigate products of cellular respiration (written lesson not published)
• C2.3 · Investigate products of photosynthesis (written lesson not published)
• C3.1 · Explain matter and energy changes in aerobic and anaerobic respiration (written lesson not published)
• C3.2 · Explain matter and energy changes in photosynthesis (written lesson not published)
• C3.3 · Apply thermodynamic laws to cellular energy transfer (written lesson not published)
• C3.4 · Compare matter and energy transformations in photosynthesis and respiration (written lesson not published)

Study DNA replication, expression, mutation, and biotechnology.

• D1.1 · Analyse social, ethical, and legal implications of biotechnology (written lesson not published)
• D1.2 · Research Canadian biotechnology regulations (written lesson not published)
• D2.1 · Use terminology for DNA replication, transcription, and translation (written lesson not published)
• D2.2 · Analyse DNA base pairing and simulated genetic codes (written lesson not published)
• D2.3 · Extract DNA in a supervised investigation (written lesson not published)
• D2.4 · Investigate cellular components of protein synthesis (written lesson not published)
• D3.1 · Explain DNA replication and repair (written lesson not published)
• D3.2 · Compare DNA and RNA in protein synthesis (written lesson not published)
• D3.3 · Explain protein synthesis and gene-expression control (written lesson not published)
• D3.4 · Explain how mutagens can alter genetic material (written lesson not published)
• D3.5 · Describe uses of genetic modification in industry and agriculture (written lesson not published)
• D3.6 · Describe plasmids, enzymes, and other biotechnology tools (written lesson not published)
• D3.7 · Describe discoveries that advanced molecular genetics (written lesson not published)

Understand feedback and how body systems regulate internal conditions.

• E1.1 · Assess effects of performance-enhancing substances on the body (written lesson not published)
• E1.2 · Evaluate health effects of human-caused environmental changes (written lesson not published)
• E2.1 · Use terminology for feedback and body regulation (written lesson not published)
• E2.2 · Build a model of the homeostatic feedback process (published written lesson)
• E2.3 · Investigate a feedback system (written lesson not published)
• E2.4 · Investigate an invertebrate response to a stimulus (written lesson not published)
• E3.1 · Explain how endocrine, excretory, and nervous systems interact (written lesson not published)
• E3.2 · Explain reproductive hormones in feedback mechanisms (written lesson not published)
• E3.3 · Explain regulation of water, ions, temperature, and acid–base balance (written lesson not published)

Model population growth, interactions, carrying capacity, and human impact.

• F1.1 · Analyse population growth and consumption in ecological footprints (written lesson not published)
• F1.2 · Evaluate Canadian technologies for feeding growing populations (written lesson not published)
• F2.1 · Use terminology for population size, growth, and carrying capacity (written lesson not published)
• F2.2 · Calculate population growth with conceptual and mathematical models (written lesson not published)
• F2.3 · Compare growth patterns of two populations (written lesson not published)
• F3.1 · Explain competition, predation, symbiosis, and other interactions (written lesson not published)
• F3.2 · Describe population growth, density, distribution, and viability (written lesson not published)
• F3.3 · Explain changes in population size using limiting factors (written lesson not published)
• F3.4 · Trace food-energy flow in human populations (written lesson not published)
• F3.5 · Explain ecosystem-wide effects of a population change (written lesson not published)

Why can an enzyme speed a reaction without being consumed?

Worked method: A substrate binds at the active site and products leave. The enzyme lowers the activation-energy barrier and can catalyse another cycle; it does not change the reaction equilibrium.

What complementary DNA strand pairs with 5′-ATGC-3′?

Worked method: A pairs with T and G with C; strands run antiparallel. The aligned complement is 3′-TACG-5′.

What happens when body temperature rises above its usual range?

Worked method: Receptors detect the rise; a control centre coordinates responses such as sweating and increased skin blood flow. Heat loss pushes temperature back toward its range.

A DNA strand reads 5′-ACGT-3′. Write the aligned complementary strand with directions.

Why is a population unlikely to grow exponentially forever?