Science

Year 12 Biology

Currently in Year 12 Biology we have been investigating the life sustaining processes of Photosynthesis and Cellular Respiration in plants and animals. We have focused on the structure and function of the plasma membrane to understand how different substances get in and out of our cells and the role proteins play in this process. We then explored the complex nature of biochemical pathways in all living things and how our bodies make sure that we are making the right substances in the right areas. You wouldn't want

stomach acid produced in your eye or saliva produced in your ear for example ;-)

Our first practical investigation surrounded the conversion of light energy into chemical energy through the process of photosynthesis in plants and the environmental factors that can affect this process. This involved creating mini isolated environments around leaves on a geranium and then testing for the presence of starch, an indication of photosynthetic processes. 

Our next two experiments looked at the optimum temperature range for an enzyme commonly found in the stomach and therefore involved in the breakdown and digestion of proteins. This was achieved by measuring the efficiency of the enzyme in a range of temperatures and drawing conclusions from these results. Finally we looked at respiration rates in crickets. This was slightly concerning for some students although I'm happy to report that all the crickets were released unharmed to live happily in the garden, following their contribution to science.

A very busy and informative week in the lab for our science students. Stay tuned for more fun in the weeks to come.

Ms Chloe Jackson

Year 10 Science

Over the past few weeks Year 10 science classes have been studying the Periodic Table.  This week they made crystal structures from lollies to demonstrate the amazing ways carbon bonds with itself.

Ms Camille O'Sullivan