This lesson covers the structure of ribonucleic acid (RNA) with specific reference to the structure and role of messenger RNA (mRNA).

This lesson covers how proteins are made, including the role of RNA polymerase, messenger RNA, transfer RNA, ribosomes and the role of start and stop codons. The lesson progresses into the roles of the DNA template (antisense) strand in transcription, codons on messenger RNA and anticodons on transfer RNA. Fully resourced with video’s and practise exam questions.

This lesson covers the when and why DNA needs to replicate, and how DNA replicates. The lesson then looks at understanding the roles of DNA polymerase and ligase. Fully resourced.

This lesson starts with a quick review of chromosome structure and then the details of the structure of nucleotides. The lesson then moves onto base pairing, hydrogen bonding and phosphodiester bonding. Fully resourced with a lot of extra consolidation activities.

This is a lesson based on student research where they are give source material to: outline the role of telomeres during DNA replication; outline the role of stem cells in cell replacement and tissue repair, and explain how uncontrolled cell division can result in tumour formation. All source materials are included.

This lesson starts with recall of KS4 mitosis, the introduces the concept of the complete cell cycle including Interphase: Gap 1; Synthesis, and Gap 2. All stages of mitosis is covered including the roles of involved organelles. Lesson concludes with a quiz to identify the stages of mitosis from micrographs.

This lesson starts with a recall KS4 chromosome structure. The lesson then progresses into the structure and functions of: DNA; Histones; Chromatids; Centromeres, and Telomeres.

This lesson is the class practical outlined in the CIE specification. The lesson starts by recalling how to calculate surface area and volume, calculating surface area to volume ratios and then the Investigation into diffusion in different sized cells using agar blocks. The lesson concludes by explaining the relationship between cell size and diffusion rate.

This lesson starts by recalling the definition of osmosis and the structure of the cell membrane. The lesson then covers passive transport, active transport, endocytosis and exocytosis and explains the use of carrier and channel proteins in cell membranes.

This lesson outlines the main stages of cell signaling that can lead to: Secretion of ligands from cells; Transport of ligands to target cells, and binding of ligands to cell surface receptors on target cells.

This less starts with a recall the structure of cell membranes and then progresses into how the fluid mosaic model of membrane structure is used to explain the structure and properties of cell membranes. Later the lesson looks at how the components of the membrane contribute to it´s physical and chemical properties. All resources included.

This lesson covers the structure and properties of a phospholipids. The lesson also includes explanations as to how the structure and properties of phospholipids relate to their function in cell membranes.

This lesson is fully resourced with video links included.

This resource covers both competitive and non-competitive inhibition. Fully resourced with lots of exam practise.

Fully resourced lesson to teach how differing concentrations of enzymes and/or substrates affect enzyme action.

Fully resourced lesson which looks at pH as a factor of affecting reaction rates.

This lesson provides students descriptions and explanations on the effects of temperature on enzyme action. Fully resourced with worked examples.

This lesson guides students into how to conduct this practical by measuring the product formed and the reactant used up. Illustrations and instructions are provided in the PPT.

This lesson covers the type of protein that enzymes are categorised into and teaches students how to describe and explain how enzymes work in terms of: the active site; the enzyme–substrate complex; lowering of activation energy, and enzyme specificity. The lesson then progresses into the differences between the lock-and-key hypothesis and the induced-fit hypothesis. Fully resources and exam questions.

This lesson recalls Darwin’s Theory of Evolution and discusses how DNA sequences can be used to show evolutionary relationships between species. The lesson then looks at how speciation occurs as a result of Allopatric speciation and Sympatric speciation.