Zoology

Order and scope follow the MEC syllabus, third revision (2026-04-28). Blueprint

1. 5.1

   Digestive system

   Alimentary canal and digestive glands · Physiology of digestion

   Digestive System: From Mouth to AbsorptionTrace food through the alimentary canal, name every gland, enzyme and hormone, and explain jaundice and protein-energy malnutrition.9 minPremiumLocked
2. 5.2

   Respiratory system

   Respiratory organs · Gas exchange and transport · Regulation of respiration · Concept of respiratory disorders

   Respiratory System: Volumes, Gas Transport and Breath ControlName the airway from nostril to alveolus, reproduce the lung-volume table, explain how oxygen and carbon dioxide travel and why a smoker's lungs stop emptying.9 minPremiumLocked
3. 5.3

   Circulatory system

   Heart · Cardiac cycle and cardiac output · Heartbeat · Arterial and venous system · Blood groups and blood pressure · Concept of cardiovascular disorders

   Circulatory System: The Heart, Its Cycle, Vessels and Blood GroupsWork through one 0.8-second heartbeat, read an ECG, tell an artery from a vein, match blood groups and explain what goes wrong in hypertension and a heart attack.9 minPremiumLocked
4. 5.4

   Excretory system

   Excretory organs · Urine formation · Concept of renal disorders

   Excretory System: Nephron, Urine Formation and the Failing KidneyMap the kidney and its nephron, follow filtrate through filtration, reabsorption and secretion to concentrated urine, and explain uraemia, stones, glomerulonephritis, dialysis and transplant.10 minPremiumLocked
5. 5.5

   Nervous system

   CNS, PNS and autonomic nervous system · Nerve impulse

   Nervous System: Brain, Nerves and the ImpulseMap the brain and spinal cord, count the cranial and spinal nerves, separate sympathetic from parasympathetic, and explain an action potential from resting potential to synapse.9 minPremiumLocked
6. 5.6

   Sense organs

   Eye · Ear

   Sense Organs: How the Eye and Ear Turn Light and Sound into ImpulsesName every layer, chamber and cell of the eye and ear, follow light to the occipital lobe and sound to the temporal lobe, and match each visual defect to its cause and its lens.10 minPremiumLocked
7. 5.7

   Endocrinology

   Glands · Hormones · Disorders

   Endocrinology: Glands, Hormones and What Goes WrongPlace every gland, match each hormone to its class, mechanism and action, and diagnose the classic hypo- and hyper-secretion disorders from their signs.10 minPremiumLocked
8. 5.8

   Reproductive system

   Organs · Gametogenesis · Ovarian and menstrual cycle

   Reproductive System: Gametes, Cycles and the Hormone TimelineTrace sperm and oocytes from germ cell to gamete, then follow FSH, LH, oestrogen and progesterone through the ovarian and menstrual cycles into fertilisation, implantation and birth.11 minPremiumLocked