Monthly Archives: March 2015

H6 Gas exchange

You need to get your head around this.  Gas Exchange     The effect of exercise on heart and lungs    And here’s a great presentation to help. Define partial pressure. Explain the oxygen dissociation curves of adult hemoglobin, fetal hemoglobin and myoglobin. … Continue reading

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H5 Transport system

Take another look at your notes on blood, blood vessels and the heart from topic 6.  Re-learn your heart diagram.  There is some new vocab to get your head around in this section.  I have highlighted these terms below.  Use … Continue reading

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H4 – Functions of the liver

Here are a couple of presentations for you. Functions of the liver  and this one.  You should be able to: Outline the circulation of blood through liver tissue, including the hepatic artery, hepatic portal vein, sinusoids and hepatic vein. Explain the role … Continue reading

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Digestion and absorption – OPTION H

H2 – digestion.  We’ve done the basics, and because you ask good questions, we’ve gone further, so much of this you will have some idea about already.  You have the background, now we need to fill in the details.  Click here. … Continue reading

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Option H – Hormonal control

As we delve into Option H, we’ll be reviewing human biology concepts at the same time.  This first section is about hormonal control.  Hormones are chemical messengers secreted by endocrine glands into the blood and transported to specific target cells.  They can … Continue reading

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