Home › Courses › Mammalian Systems: Transport and Gas Exchange
Human Biology · Year 11 · Ready-made course
Seven Year 11 lessons in three modules. Module 1 covers the circulatory and lymphatic systems: circulation pathways, the heart, blood vessels, capillary exchange, blood, blood pressure and circulatory disorders. Module 2 covers gas exchange: diffusion, exchange surfaces, the respiratory system, ventilation, lung volumes, gas transport and respiratory disorders. An extension lesson covers homeostasis.
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Across 7 lessons: 8 interactive activities, 7 knowledge checks, 6 practice tasks, 7 reflections and 9 data tables, using 3 different TEU interactives. Every lesson opens with a real question or scenario, states its learning intention, lists its learning outcomes and checks understanding with instant feedback.
Distributing materials: mammalian transport systems
Oxygen diffusing from your lungs would take more than a year to reach your brain. Your circulatory system delivers it in less than 4 seconds, about four or five heartbeats.
Students learn why mammals need transport systems, how blood flows through the two circuits, and how the structure of the heart suits its job.
1 interactive activity · 1 knowledge check · 1 practice task · 1 reflection · 2 data tables
The heart supplies the pressure, but every exchange with your cells happens in vessels narrower than a single red blood cell.
Students learn how the structure of each blood vessel suits its job, how materials leave and return to capillaries, and what each part of the blood does.
1 interactive activity · 1 knowledge check · 2 practice tasks · 1 reflection · 2 data tables
A reading of 120 over 80 sounds simple. What do the two numbers mean, and what happens when they stay too high?
Students learn what blood pressure is, how disorders of the blood vessels affect the body, and how the lymphatic system returns fluid to the blood.
1 interactive activity · 1 knowledge check · 1 practice task · 1 reflection · 1 data table
Gas exchange: the respiratory system
Every cell in your body needs oxygen for cellular respiration. Your lungs fold a surface the size of a small apartment into your chest to collect it.
Students learn what makes a gas exchange surface efficient, how air reaches the alveoli, and how breathing moves air in and out of the lungs.
1 interactive activity · 1 knowledge check · 1 practice task · 1 reflection · 1 data table
Only 0.2 mL of oxygen dissolves in 100 mL of blood. So how does your blood carry enough oxygen to keep you running?
Students learn how to measure lung volumes, how blood carries oxygen and carbon dioxide, and how breathing and circulation respond together to exercise.
2 interactive activities · 1 knowledge check · 1 reflection · 2 data tables
Asthma, emphysema and pneumonia are unrelated diseases, yet all three leave people tired and unable to exercise. Why?
Students learn how three respiratory diseases each damage a different feature of efficient gas exchange.
1 interactive activity · 1 knowledge check · 1 practice task · 1 reflection · 1 data table
Extension: homeostasis
Exercise multiplies the heat your muscles release and the glucose they use. Your body temperature and blood glucose barely change. How?
Students learn how negative feedback keeps body temperature and blood glucose within narrow limits, using exercise as the disturbance.
1 interactive activity · 1 knowledge check · 1 reflection
Senior secondary: written to suit Year 11 transport and gas exchange content across Australian senior Biology and Human Biology courses.
Each one can also be used on its own or in your own lessons.
Every copy of a course is yours. Reorder or remove lessons, rewrite text, swap questions and add your own interactives, images and video. Students join with a class code (no student accounts needed) or from Canvas, Moodle, Schoolbox or Brightspace, and you see each student's answers and progress as they work.
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