https://soh-cah-toa.pages.dev/guides/biology/ Recent content in Biology on SOH-CAH-TOA Hugo en-us Mon, 27 Jul 2026 01:14:15 +0700 https://soh-cah-toa.pages.dev/guides/biology/coordination_and_response/ Mon, 27 Jul 2026 01:14:15 +0700 https://soh-cah-toa.pages.dev/guides/biology/coordination_and_response/ Covers biological coordination systems, contrasting quick electric signals (Nervous System) with sustained chemical messages (Hormones). Emphasis placed on mechanisms like negative feedback (glucose homeostasis) and comparison of coordination methods across animals and plants. https://soh-cah-toa.pages.dev/guides/biology/respiration/ Mon, 27 Jul 2026 01:12:06 +0700 https://soh-cah-toa.pages.dev/guides/biology/respiration/ Respiration is the process by which cells release energy from glucose. This energy is used for essential life processes. Respiration can occur with oxygen (aerobic) or without oxygen (anaerobic), with different energy yields and products. https://soh-cah-toa.pages.dev/guides/biology/gas_exchange_in_humans/ Mon, 27 Jul 2026 01:11:59 +0700 https://soh-cah-toa.pages.dev/guides/biology/gas_exchange_in_humans/ Gas exchange in humans is the process by which oxygen enters the body and carbon dioxide is removed. This occurs primarily in the lungs through a system of specialized structures optimized for efficient gas transfer. https://soh-cah-toa.pages.dev/guides/biology/disease_and_immunity/ Mon, 27 Jul 2026 01:10:51 +0700 https://soh-cah-toa.pages.dev/guides/biology/disease_and_immunity/ Diseases and immunity cover how pathogens cause disease, how the body defends itself, and how vaccines provide protection. This guide covers transmission, body defences, active and passive immunity, and specific examples like cholera according to IGCSE Biology syllabus (2026-2028). https://soh-cah-toa.pages.dev/guides/biology/transportation_in_humans/ Mon, 27 Jul 2026 01:09:36 +0700 https://soh-cah-toa.pages.dev/guides/biology/transportation_in_humans/ Transport in humans involves the movement of substances throughout the body via the circulatory system. Blood circulates through vessels driven by the heart, delivering oxygen and nutrients to cells while removing waste products. https://soh-cah-toa.pages.dev/guides/biology/transportation_in_plants/ Mon, 27 Jul 2026 01:08:27 +0700 https://soh-cah-toa.pages.dev/guides/biology/transportation_in_plants/ Transport in plants involves the movement of water, minerals and food substances throughout the plant. This guide covers xylem and phloem function, root hair structure, transpiration and translocation according to IGCSE Biology syllabus (2026-2028). https://soh-cah-toa.pages.dev/guides/biology/human_nutrition/ Mon, 27 Jul 2026 01:07:19 +0700 https://soh-cah-toa.pages.dev/guides/biology/human_nutrition/ Human nutrition covers the study of how humans obtain, process and use food for energy, growth and maintenance. This guide covers diet requirements, digestive system structure and the digestive process according to IGCSE Biology syllabus (2026-2028) https://soh-cah-toa.pages.dev/guides/biology/plant_nutrition/ Mon, 27 Jul 2026 01:06:10 +0700 https://soh-cah-toa.pages.dev/guides/biology/plant_nutrition/ Plant nutrition involves plants obtaining and processing raw materials to build organic molecules for growth, energy and cell structures. This guide covers photosynthesis, leaf structure and factors affecting photosynthesis according to IGCSE Biology syllabus (2026-2028). https://soh-cah-toa.pages.dev/guides/biology/enzymes/ Mon, 27 Jul 2026 01:05:57 +0700 https://soh-cah-toa.pages.dev/guides/biology/enzymes/ This study guide covers Chapter 5 of the IGCSE Biology (2026-2028) syllabus: Enzymes. It addresses both Core and Extended syllabus requirements covering enzymes as biological catalysts and factors affecting enzyme activity. https://soh-cah-toa.pages.dev/guides/biology/biological_molecules/ Mon, 27 Jul 2026 01:04:00 +0700 https://soh-cah-toa.pages.dev/guides/biology/biological_molecules/ This study guide covers Chapter 4 of the IGCSE Biology (2026-2028) syllabus: Biological molecules. It addresses both Core and Extended syllabus requirements for carbohydrates, fats, and proteins, organized by topic rather than syllabus level. https://soh-cah-toa.pages.dev/guides/biology/movement_in_and_out_of_cells/ Mon, 27 Jul 2026 01:01:00 +0700 https://soh-cah-toa.pages.dev/guides/biology/movement_in_and_out_of_cells/ This study guide covers Chapter 3 of the IGCSE Biology (2026-2028) syllabus: Movement into and out of cells. It addresses both Core and Extended (Supplement) syllabus requirements covering diffusion, osmosis, and active transport mechanisms. https://soh-cah-toa.pages.dev/guides/biology/cells_and_organisms/ Sun, 26 Jul 2026 22:28:09 +0700 https://soh-cah-toa.pages.dev/guides/biology/cells_and_organisms/ This study guide covers Chapter 1 and Chapter 2 of the IGCSE Biology (2026-2028) syllabus, focusing on characteristics of living organisms and the organisation of life at cellular level. It addresses both Core and Extended (Supplement) syllabus requirements.