Lessons
Introduction to Water
Properties of Water
AS LEVEL - PAPER 1 2018 - QUESTION 2
A nice summary of the content on water that you need to know. Don't worry about drawing the full atomic structure - they're just looking for the symbols to show the charges in the correct places.
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Water as a Solvent
Properties of Water, Transport Across Cell Membranes, Data Analysis, Polymers of Carbohydrates
AS LEVEL - PAPER 1 2017 - QUESTION 3
For part c) remember to refer to pattern in the data and then explain why this is happening, using your knowledge.
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Mass Flow in Animals
Calculate Volume, Gas Exchange, Surface Area to Volume Ratio, Adaptations of the Lungs
AS LEVEL - PAPER 1 2017 - QUESTION 2
For part c) - read as carefully as you can from the graph. Always show your working! For part d) - look carefully at the images and think about how this might have an impact, given what you know about diffusion.
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Blood Vessels
Cardiac Cycle Graphs, Calculate Rate, Blood Vessels
AS LEVEL - PAPER 1 2018 - QUESTION 5
A lot of content on different aspects of the cardiac cycle covered, here. Good examples of cardiac cycle graphs that may come up.
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Structure of the Human Heart
Heart Structure, Cardiac Cycle, Fick's Law of Diffusion, Data Analysis
AS LEVEL - PAPER 1 2016 - QUESTION 8
You need to think outside of the box a bit with this one as holes in septums are not covered in the spec. Think logically about the situation and apply what you know to it. For biii) remember to refer back to the data - this is essential to get top marks.
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Cardiac Cycle Graphs
Cardiac Cycle Graphs, Calculate Rates, Heart Structure
AS LEVEL - PAPER 1 2015 - QUESTION 4
Great example of a cardiac cycle graph question.
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