How do dissolved substances move?

What is Osmosis?

What do soft drinks contain?

What do sports drinks contain? Why?

What happens if water and ions are not replaced?

What is active transport?

Why is active transport useful?

How are organ systems specialised to exchange materials?

What exchange surfaces are are adapted to maximise effectiveness

How are human lungs adapted?

How are small intestines adapted?

What does the breathing system do?

What happens when we inhale?

What happens when we exhale?

What is ventialtion?

What exchanges occur in plants?

How are these exchange surfaces adapted?

What do Stomata do?

Where does the majority of water loss in a plant occur?

What affects plant water loss?

What controls the stomata?

What does the circulatory system do?

What is the heart? What is it
made of?

List the parts of the heart

Describe how blood flows through the heart

What are artery walls made of?

What are Veins made of?

What does blood do in the organs?

What is blood made of?

What does blood plasma transport?

What do red blood cells do?

How are red blood cells adapted for this job?

How does haemoglobin work?

What are white blood cells?

What are platelets?

What are the transport systems in plants?

What are the types of breathing aids?

Advantages and disadvantages of negative pressure

Advantages and disadvantages of positive pressure

What waste needs to be removed from the body?

Water and Ion content balance

How does a kidney produce urine?

How can you treat kidney failure?

Dialysis treatment

Kidney transplants

Advantages and disadvantages of dialysis

Advantages and disadvantages of kidney transplants

Sweating

How is body temperature monitored and controlled?

If core body temperature is too high...

If core body temperature is too low...

Pancreas' role in sugar level control

Type 1 diabetes

Why is the amount of waste we produce increasing?

Waste can pollute...

Human use of land

Why does deforestation occur?

How does deforestation affect the environment?

Peat bogs

Global warming

Effects of global warming

Sequestering of carbon dioxide

Measuring concentrations of Co2

Production of biofuels

Advantaged of biofuels

Advantages and disadvantages of small biogas generators

Advantages and disadvantages of larger biogas generators

Loss of biomass in the food chain

Increasing efficiency of food production

Food Miles

Sustainable development

Dealing with overfishing

Fusarium

Providing food

Providing water