Monthly Archives: September 2013

Membranes – how stuff gets in and out of cells

We’ll use this presentation in class.  You’ll need to be able to: Draw and label a diagram to show the fluid mosaic model of membrane structure. Explain the terms hydrophobic and hydrophilic, and how these properties help to maintain membrane structure. List the many functions of membrane proteins. And for … Continue reading

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Gas exchange

Do you know the difference between respiration, breathing and gas exchange? You will, hopefully, by the end of the next topic.  Here are some resources to help you.  This one gives basic factual information.  This one is interactive.  And this one from Get Body Smart is also good. Watch this … Continue reading

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Plant cells

Plant cells are also eukaryotes, but there are some notable differences with animal cells.  State THREE important structural differences between them. Watch this video to help appreciate plant cells and their complexity and diversity. Outline two roles of extracellular components … Continue reading

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Eukaryotic cells

Now it is time to turn our attention to a far more interesting being – eukaryotic cells.  Animal and plant cells are both types of eukaryotes.  We’ll begin with animal. Watch this video from our friends at Crash Course. Draw … Continue reading

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Prokaryotic cells

You need to be able to draw, label and annotate a diagram of E.Coli (a prokaryote). In addition you should be able to recognize these structures on an electron micrograph like the one pictured. Finally you need to know how prokaryotic cells … Continue reading

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Crash course – digestive system

Watch and enjoy!  

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Surface area to volume ratio

This is a fundamental concept in Biology.  Make sure you know the difference between surface area, volume, and surface area to volume ratio.  To help consolidate your understanding of the ideas we’ll be conducting a lab.  Here is the instruction … Continue reading

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