BBC Curriculum Bites: Mrs Gren (1m).
How about seeing some real cells in action? Here is a Trachelius ciliate feeding on a Campanella ciliate, and here is a Paramecium feeding:
For self-assessment questions, with exercises and discussions, just click on the correct topic at Biology GCSE & IGCSE Question Bank. Powerpoints can be downloaded from the same site here. The s-cool revision site lets you revise the topic, summarizes the topic & tests you on it. Skoool gives you a lesson, including progress questions, for each Biology topic but you’ll need sound on for it.
Just click to enlarge (thank you LadyofHats).
B2.1 CELL STRUCTURE
Science Bank 9 (Cells & Tissues): Part 1- Animal Cells (to 4m 25s); Part 2 – Plant Cells (to 9m 10s); you do not need Part 3.
A short video from The Virtual School about cells & specialized cells:
B2.2 MOVEMENT IN & OUT OF CELLS
You only need to know about the first two sections (diffusion):
Here are key terms and definitions: Key terms B3
For self-assessment questions, with exercises and discussions, just click on ‘The chemicals of living cells’ (qu.13 onwards) at Biology GCSE & IGCSE Question Bank. A powerpoint (the chemicals of living cells) can be downloaded from the same site here. The s-cool revision site lets you revise the topic, summarizes the topic and tests you on it. GCSE Bitesize has revision pages (that take you through the topic), a test and an activity.
Science Bank 8: you just need Part 3 (from 9m 55s) – Enzymes – biological catalysts & factors affecting their rate:
A simple animated tutorial from McGraw Hill Education on how enzymes work.
Mr W sings ‘Enzymes!’: