You need to know some maths for A level Biology, including to work out whether an experiment can be said to have shown an effect or not. Master this early on and it will not help you with exam questions, but also make it easier for you to learn the bits of the course that are explained using these statistical methods.

Weekly Group classes - for AQA Y13 A level BIology

Raise your exam grade with question focused masterclasses from a highly experienced A level Biology teacher.

Every week we go through a different topic from the specification and look at how to apply the content to exam questions. I show how to understand commonly occurring questions and how to answer them.

Example 2: Q3 Paper 2 2023

This next question is more complex, and there are two ‘suggest’ questions.

But first - I always recommend you don’t read the actual questions until you’ve looked at the background information, graph etc. Doing this will help you avoid getting overwhelmed and jumping to mistaken conclusions (which is very common in exam situations!).

So let’s keep the questions for later. First make sense of this:

Monoclonal antibodies are a relatively new treatment type, with huge importance for treating migraine, cancer, autoimmune diseases, and many other conditions.

So how do they work?

What is an Antibody? What is an Antigen?

Weekly Group classes - for AQA Y12 A level Biology

Raise your exam grade with question focused masterclasses from a highly experienced A level Biology teacher.

Every week we go through a different topic from the specification and look at how to apply the content to exam questions. I show how to understand commonly occurring questions and how to answer them.

Mastering AQA A Level Biology Section 3.4.3: Genetic Diversity via Mutation and Meiosis - Common Questions & Mark Scheme Insights

Prior Knowledge Essential for This Topic

Before tackling meiosis and genetic diversity questions, ensure you're confident with:

After analyzing past papers and mark schemes for AQA specification section 3.4.2 (DNA and Protein Synthesis), I've identified the question types that consistently challenge students. Understanding these patterns and the specific language that mark schemes reward is essential for maximizing your exam performance. Let me guide you through four of the most frequently tested question types with real AQA examples.

I've noticed that certain types of questions in AQA specification section 3.4.1 (DNA, Genes and Chromosomes) consistently challenge students. Understanding these patterns and knowing how to approach them can significantly boost your exam performance. Let me walk you through four of the most commonly asked question types, using actual AQA examples, and show you exactly how to earn those crucial marks.

3.1.5 - Nucleic Acids Structure and Replication

Can you

• Draw the formation and hydrolysis of a phosphodiester bond

• Name the parts of a nucleotide

• Explain the similarities and differences between RNA and DNA

• Explain why DNA is a good molecule for storing information ?

• Can you describe semi-conservative replication ?

As part of the fortnightly group tuition sessions running Mondays at 7.15pm for Alevel Biology - AQA and OCR A I am trying out these notes templates. Tonight we are covering Transpiration and the Light Dependent reactions

10% of the marks in Biology papers are for calculations. Here are some good practise questions and a great advice document from OCR (applicable to all boards)

Some terrific guidance and definitions here - from AQA but applies to all exam boards

A great glossary of vocabulary that applies to Biology questions and answers.

Powerpoints, videos and animations, a self marking quiz on lipids and carbohydrates.

Some tips

• Number the carbons and understand when and how a 1,4 glycosidic bond forms.

• Why it matters that you can form a 6,1 bond in order to branch a polysaccharide.

• Why does it matter that polysaccharides are insoluble and mono and di-saccharides are soluble.

• What is the consequence of Beta glucose forming cellulose

• Which molecules have a 5 carbon sugar in mammals ?

• Can you explain why fatty acids are non-polar and what is the consequence for the formation of cell membranes

Resources for learning the immune system. Powerpoints, animations, videos, self marking test and some rare immune sytem questions.

Multiple choice questions on cell organelles, all past paper questions, a good way to assess your understanding

Resources on viruses and prokaryotes

Oxygen is the final electron acceptor. It oxidises the final carrier in the ETC on the inner mitochondrial membrane and is reduced to water.

Hydrogen ions flow from the inter membrane space into the matrix via ATP synthase, this electrochemical gradient phosphorylates ADP.

Hydrogen ions are pumped from the matrix into the inter membrane space, using the energy from the electrons flowing along the ETC. The electrons come from the oxidation of food, transferred by coenzymes NAD and FAD.

Glycolysis occurs in the cytoplasm. Link and Krebs in the matrix. Link and Krebs produce carbon dioxide by the removal of a carboxyl group.

Fermentation is just glycolysis with a different way of regenerating NAD (from NADH) by the reduction of pyruvate (or ethanal).

Substrate level phosphorylation is the direct addition of phosphate to ADP, occurs in glycolysis (4 ATP) and Krebs (once per turn), chemiosmosis is H ions flowing through ATP synthase.

Cristae give a larger surface area for oxidative phosphorylation