Complete Lesson

AS: Biological Molecules

Lessons

Introduction to Water

Respiration, Data Analysis, Transport

A LEVEL - PAPER 1 2017 - QUESTION 18

A mark scheme definition of organ as well as a level of response question that will test your recall and understanding of aerobic and anaerobic respiration.

Walkthrough

Properties of Water

Properties of Water, Surface Area to Volume Ratio, Circulatory Systems

AS LEVEL - PAPER 1 2018 - QUESTION 21

The question tests you on a broad range of topics and skills.

Walkthrough

The Biological Molecules

Carbon Cycle, Nitrogen Cycle, Glucose

A LEVEL - PAPER 2 2020 - QUESTION 20

A rare example of a question on Carbon Cycle so a great one to try if you're revising this topic.

Walkthrough

Condensation & Hydrolysis Reactions

Amino Acids, Transcription, Fibrous & Globular Proteins, Chromatography

AS LEVEL - PAPER 2 2018 - QUESTION 1

A giant question covering a range of topics and skills. They are not that common but it is well worth practising long questions like this so you don't panic if they do set you one in the real exam.

Walkthrough

Monosaccharides & Disaccharides

Polymers of Carbohydrates, Gas Exchange in Insects

AS LEVEL - PAPER 2 2016 - QUESTION 3

As soon as you make the connection between chitin and the right carbohydrate polymer then this question becomes straightforward.

Walkthrough

DNA Structure, ATP vs. DNA

AS LEVEL - PAPER 1 2018 - QUESTION 24

Short and sweet. This is all AO1 factual recall, so easy... if your content knowledge is strong.

Walkthrough

Polymers of Carbohydrates

Carbohydrates, Organelles, Protein Secretion

AS LEVEL - PAPER 1 2017 - QUESTION 22

Lots of teachers don't cover the role of cell organelles in the production and secretion of proteins but it is one of the more common ways for the exam boards to test you... especially OCR.

Walkthrough

Triglyceride Structure & Function, Phospholipids, Cell Membranes

AS LEVEL - PAPER 1 2018 - QUESTION 22

A good question if you're looking to test your knowledge of lipids and phospholipids.

Walkthrough

Phospholipids & Cholesterol

Triglyceride Structure & Function, Phospholipids, Cell Membranes

AS LEVEL - PAPER 1 2018 - QUESTION 22

A good question if you're looking to test your knowledge of lipids and phospholipids.

Walkthrough

Introduction to Proteins

Amino Acids, Transcription, Fibrous & Globular Proteins, Chromatography

AS LEVEL - PAPER 2 2018 - QUESTION 1

A giant question covering a range of topics and skills. They are not that common but it is well worth practising long questions like this so you don't panic if they do set you one in the real exam.

Walkthrough

Protein Structure

Oxyhaemoglobin Dissociation Curve, Protein Structure, Fibrous & Globular Proteins

AS LEVEL - PAPER 2 2015 - QUESTION 4

This topic is often over complicated by the textbooks. It's not a simple one to understand but the good news is that if you practice a few questions you will see how similar the answers are each time.

Walkthrough

Fibrous & Globular Proteins

Amino Acids, Transcription, Fibrous & Globular Proteins, Chromatography

AS LEVEL - PAPER 2 2018 - QUESTION 1

A giant question covering a range of topics and skills. They are not that common but it is well worth practising long questions like this so you don't panic if they do set you one in the real exam.

Walkthrough

Cations & Anions

Inorganic Ions, Tissue Fluid, Enzyme Inhibition, Draw a Conclusion

AS LEVEL - PAPER 2 2018 - QUESTION 4

Lots of different topics are examined here but there is not much linking so it's not too tricky.

Walkthrough

Qualitative Tests for Molecules

Plant Hormones, Drawing Graphs, Tests for Substances

A LEVEL - PAPER 1 2019 - QUESTION 17

Some of these will really test your question analysis skills. When you mark your answers, try to make the links between the question and the mark scheme.

Walkthrough

Topic Revision

Recording from previous live classes on this topic:

All Topic Questions

Q & A

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