A Level Biology Revision Lesson 45: Binary Fission (How Bacteria Divide)

Task 1. Check Where this Lesson fits into your Exam Specification!

Task 2. Watch the Revision Notes Lesson in Full.

00:00 Intro Screen

00:16 Learning Outcomes

00:43 - Introduction - All cells "reproduce"

01:17 Binary Fission - the division of a prokaryote

01:39 Binary Fission - Step 1.

02:00 Binary Fission - Step 2.

02:17 Binary Fission - Step 3.

02:36 Binary Fission - Step 4.

Download, Print out & complete the accompanying A3 Poster


Check Your Spec!

★ AQA Specification Reference: - 3.2 Cells - 3.2.2 All cells arise from other cells. Binary fission in prokaryotic cells involves: Replication of the circular DNA and of plasmids. Division of the cytoplasm to produce two daughter cells, each with a single copy of the circular DNA and a variable number of copies of plasmids.


★ CIE: ★ Edexcel (Biology A – Salters-Nuffield): N/A


★ Edexcel (Biology B): N/A (However will be useful for Topic 6: Microbiology and Pathogens as basic introduction to bacterial cell division, before moving on to the different phases of a bacterial growth curve).


★ OCR (Biology A) N/A

★ OCR (Biology B): N/A


★ WJEC Specification Reference: - N/A (however will be useful as basic understanding of how bacterial cells divide, and therefore applied to growth conditions etc. covered section 4. Microbiology).


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