Here are video tutorials for many assessment statements in topic 2 – and more are being added all the time. Thank you to Stephanie Castle (at UNIS, New York).
Carbohydrates and Sugars – a great video from Osmosis and here is IB 2.3 Carbohydrates & Lipidsin 12m 24s from Dan Rott.
A lovely site about polymers that includesstarch and cellulose (with a nice animation), and here is an excellent lesson from TED-Ed on what is fat?– in a bit more detail than we need.
Key terms as flashcards from Quizlet (you also can test yourself in a number of ways):
In Crash Course Biology #10 –DNA Structure & Replication, Hank introduces us to that wondrous molecule DNA and explains how it replicates itself in our cells.
PCR (the POLYMERASE CHAIN REACTION)
For the Polymerase Chain Reaction – click on ‘PCR’ to see an Interactive Animation from Wiley or here for two animated tutorials from McGraw Hill Education –PCR. Or why not use PCR yourself in a Virtual Lab from Learn.Genetics (labs on PCR & DNA extraction). Or there’s a 12m PCR for A level video; a 4m video on PCR here; and from the DNA Learning Center (1m 28s):
The PCR song:
MESELSON & STAHL experiment (proof of semi-conservative replication)
In Crash Course Biology #11 – Transcription & Translation, Hank imagines himself breaking into the Hot Pockets factory to steal their secret recipes and instruction manuals in order to help us understand how the processes known as DNA transcription and translation allow our cells to build proteins.
Find a video lesson on this sub-topic atDan Rott videos, or many assessment statements are covered by Stephanie Castle (with more being added all the time).
In Crash Course Biology #7 –ATP & Respiration, in which Hank does some push-ups for science and describes the “economy” of cellular respiration and the various processes whereby our bodies create energy in the form of ATP.