Tom Whitburn 18/06/2018 Tom Whitburn 18/06/2018

Reproduction in Humans - Resource and Questions

Oegenesis, Gametogenesis, Fertilization in Humans

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Tom Whitburn 13/06/2018 Tom Whitburn 13/06/2018

Plant transport Questions - Xylem/Phloem

Plant transport guide - videos, powerpoints, questions

Transport in Plants questions from OCR

Transport in plant slides from Alex Chiam

82 Transport in Flowering Plants_Page_1.jpg

82 Transport in Flowering Plants_Page_2.jpg

82 Transport in Flowering Plants_Page_3.jpg

82 Transport in Flowering Plants_Page_4.jpg

82 Transport in Flowering Plants_Page_5.jpg

If you found it useful then please ❤️ (at the bottom of the page) and share, you can follow me on instagram - alevelbiologytutor

Tuesday night group tutoring topics and Y13 & Y12 OCR A and AQA small group weekly class information

Tom Whitburn 12/05/2018 Tom Whitburn 12/05/2018

AQA June 2017 - Past Paper 7402/01 Guide with the Markscheme

AQA released the June 2017 Biology papers - they are all available at

http://www.aqa.org.uk/subjects/science/as-and-a-level/biology-7401-7402/assessment-resources

I combined the 7402/01 paper with the markscheme to make it easier to follow and interpret. If you find it useful then please like and share.

AQA released the June 2017 Biology papers - they are all available at

http://www.aqa.org.uk/subjects/science/as-and-a-level/biology-7401-7402/assessment-resources

I combined the 7402/01 paper with the mark-scheme to make it easier to follow and interpret. If you find it useful then please like and share.

Please like and share (and click on a advert to help with the hosting costs !)

More AQA resources

AQA Paper 3 Extended Essay: Tips, Mark Scheme and Past Paper Titles - Updated for 2026

How to answer the AQA A-level Biology Extended Essay, including past paper essay titles

Photosynthesis Tips - Notes, videos, powerpoints and a pack of long questions

Powerpoints and notes, a pack of long data analysis exam questions and a test on photosynthesis

Tips for Photosynthesis

LDR - occurs on the thylakoid membranes. Limiting factor is light intensity

Phosphorylates ADP (through chemiosmosis) - creates the Hydrogen ion gradient by the flow of electrons along the ETC in the thylakoid membrane. The flow of electrons is driven by the capturing of light by a range of different pigments which channel the energy to a chl a molecule at the reaction centre of the photosystem - which then loses an electron.
Reduces NADP with an electron from splitting water (photolysis) at PSII.

Light Independent Reaction (reduction of carbon dioxide) - occurs in the stroma (the cytoplasm of the chloroplast).

Limited by speed and quantity of RUBISCO enzyme (kinetic energy - temperature) and substrate concentration (Carbon dioxide)
Needs the products of the LDR - ATP and NADPH
NADPH and ATP are used to regenerate RUBP
Each time the Calvin cycle turns, a single Carbon is reduced. 3 turns - one extra Triose Phosphate. 6 turns - 2 extra TP = 1 extra glucose.
TP is the source of all of the carbon in all plants (and hence in all heterotrophes) - Amino acids, DNA, RNA, phospholipids etc

Tom Whitburn 12/05/2018 Tom Whitburn 12/05/2018

AQA June 2017 - Past Paper 7402/02 Guide with the Markscheme

AQA released the June 2017 Biology papers - they are all available at

http://www.aqa.org.uk/subjects/science/as-and-a-level/biology-7401-7402/assessment-resources

I combined the 7402/02 paper with the markscheme to make it easier to follow and interpret. If you find it useful then please like and share.

AQA released the June 2017 Biology papers - they are all available at

http://www.aqa.org.uk/subjects/science/as-and-a-level/biology-7401-7402/assessment-resources

I combined the 7402/02 paper with the markscheme to make it easier to follow and interpret. If you find it useful then please like and share.

Please like and share (and click on a advert to help with the hosting costs !)

Tom Whitburn 12/05/2018 Tom Whitburn 12/05/2018

AQA June 2017 - Past Paper 7402/03 Guide with the Markscheme

AQA released the June 2017 Biology papers

I combined the 7402/03 paper with the markscheme to make it easier to follow and interpret. If you find it useful then please like and share.

AQA released the June 2017 Biology papers - they are all available at

http://www.aqa.org.uk/subjects/science/as-and-a-level/biology-7401-7402/assessment-resources

I combined the 7402/03 paper with the markscheme to make it easier to follow and interpret. If you find it useful then please like and share.

Please like and share (and click on a advert to help with the hosting costs !)

Tom Whitburn 23/02/2018 Tom Whitburn 23/02/2018

Reproduction in Plants - Videos, Powerpoints and Questions

Plant reproduction - videos questions and resources

If you use then please like and share

Double fertilisation and Sporophyte/Gametophyte - a lot more interesting than many students think ...

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Plant reproduction from chduncan

Tom Whitburn 09/02/2018 Tom Whitburn 09/02/2018

Liver and Excretion Questions and Glucose Homeostasis

Question pack, powerpoint and videos on the liver

- if you use then like or share

Liver and Excretion Questions and Glucose Homeostasis - question pack

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You will find these resources useful

24 June 2025

How to approach and answer AQA A-level Biology Questions that need you to interpret Graphs- lots of AQA past paper questions

24 June 2025

How to approach and answer A-level Biology Questions that need you to Analyse Figures, Tables and Images - lots of example past paper questions with the markschemes

24 June 2025

7 November 2021

Improve your Exam Answers -Small changes that will get you more marks - UPDATED JAN 2023

7 November 2021

How to change the language you use in A level Biology Answers, and get better grades

7 November 2021

29 November 2019

OCR A and OCR B June 2019 - Summer highlights - Great tips from the board

29 November 2019

OCR A June 2019 summer highlights

29 November 2019

9 February 2018

Liver and Excretion Questions and Glucose Homeostasis

9 February 2018

Question pack, powerpoint and videos on the liver

- if you use then like or share

9 February 2018

18 January 2018

A-level Biology Questions by topic : Spirometer and Lung Volume Questions

18 January 2018

A-level Biology Questions by topic : Spirometer and Lung Volume Questions - powerpoints and Videos

- if you use then like and share

18 January 2018

A-level Biology Questions by Topic: Magnification Calculations and Graticules

18 January 2018

A-level Biology Questions by topic: Magnification Calculations and Graticules - how to do magnification questions

If you use then like and share

18 January 2018

5 January 2018

A-level Biology: Practical and Experimental Design - Top Tips and Question Pack

5 January 2018

Top Tips !

Never write "amount" you mean mass, volume or concentration.
Refer to "a control experiment" or "a variable that I will control (and then name the value and method of control)" but never to "a control variable"
Independent variable is what you change.
Dependent variable is what you actually measure in the experiment (not rate).
Organisms vary from each other unless they are clones !
When you suggest improvements think about improving the method rather than the equipment (e.g. control a variable that wasn't previously)

If you use then like and share

5 January 2018

Kidney Diseases, Dialysis and Transplant Questions - Questions by Topic

5 January 2018

A-level Biology Questions on Kidney Dialysis and Transplants - useful powerpoints/animations and videos

If you use then like and share

5 January 2018

6 November 2017

Answering Questions with lots of Maths in Biology - Data Analysis Questions in the new OCR Biology A Specification - updated Feb 2018 with the latest handbook

6 November 2017

Which maths skills you need to practise for the new specification A-level Biology - excellent resources from OCR - also applies to AQA and Eduqas, lots of great practice questions

The quantity of maths in the 2017 specification is a challenge to many students - so I put together a summary of all of the OCR A new spec questions with some element of data analysis.

if you use then please like and share

6 November 2017

4 October 2017

Some of the Questions asked last year at UK Medical School admissions Interviews

4 October 2017

if you use then like and share

4 October 2017

Tom Whitburn 18/01/2018 Tom Whitburn 18/01/2018

A-level Biology Questions by topic : Spirometer and Lung Volume Questions

A-level Biology Questions by topic : Spirometer and Lung Volume Questions - powerpoints and Videos

- if you use then like and share

Terrific pack of questions and markscheme

If you found it useful then please ❤️ (at the bottom of the page) and share, you can follow me on instagram - alevelbiologytutor

Tuesday night group tutoring topics and Y13 & Y12 OCR A and AQA small group weekly class information

You will find these resources useful

How to approach and answer AQA A-level Biology Questions that need you to interpret Graphs- lots of AQA past paper questions

How to approach and answer A-level Biology Questions that need you to Analyse Figures, Tables and Images - lots of example past paper questions with the markschemes

Improve your Exam Answers -Small changes that will get you more marks - UPDATED JAN 2023

How to change the language you use in A level Biology Answers, and get better grades

OCR A and OCR B June 2019 - Summer highlights - Great tips from the board

OCR A June 2019 summer highlights

Liver and Excretion Questions and Glucose Homeostasis

Question pack, powerpoint and videos on the liver

- if you use then like or share

A-level Biology Questions by topic : Spirometer and Lung Volume Questions

A-level Biology Questions by topic : Spirometer and Lung Volume Questions - powerpoints and Videos

- if you use then like and share

A-level Biology Questions by Topic: Magnification Calculations and Graticules

A-level Biology Questions by topic: Magnification Calculations and Graticules - how to do magnification questions

If you use then like and share

A-level Biology: Practical and Experimental Design - Top Tips and Question Pack

Top Tips !

Never write "amount" you mean mass, volume or concentration.
Refer to "a control experiment" or "a variable that I will control (and then name the value and method of control)" but never to "a control variable"
Independent variable is what you change.
Dependent variable is what you actually measure in the experiment (not rate).
Organisms vary from each other unless they are clones !
When you suggest improvements think about improving the method rather than the equipment (e.g. control a variable that wasn't previously)

If you use then like and share

Kidney Diseases, Dialysis and Transplant Questions - Questions by Topic

A-level Biology Questions on Kidney Dialysis and Transplants - useful powerpoints/animations and videos

If you use then like and share

Answering Questions with lots of Maths in Biology - Data Analysis Questions in the new OCR Biology A Specification - updated Feb 2018 with the latest handbook

Which maths skills you need to practise for the new specification A-level Biology - excellent resources from OCR - also applies to AQA and Eduqas, lots of great practice questions

The quantity of maths in the 2017 specification is a challenge to many students - so I put together a summary of all of the OCR A new spec questions with some element of data analysis.

if you use then please like and share

Some of the Questions asked last year at UK Medical School admissions Interviews

if you use then like and share

Tom Whitburn 30/01/2017 Tom Whitburn 30/01/2017

Tips and Practice Questions for the Practical component of the Theory papers - A-level Biology

How to improve your answers to questions about practicals in A-level Biology exam questions.

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15 % of the June 2017 A-level Biology examinations will be examining practical skills. Here are some excellent practical exam questions which will challenge you to think about the nature of experimental design, independent and dependent variables.

Statistical analysis and graph plotting are also in the questions.

Remember

Never write "amount" you mean mass, volume or concentration.
Refer to "a control experiment" or "a variable that I will control (and then name the value and method of control)" but never to "a control variable"
Independent variable is what you change.
Dependent variable is what you actually measure in the experiment (not rate).
Organisms vary from each other unless they are clones !
When you suggest improvements think about improving the method rather than the equipment (e.g. control a variable that wasn't previously)
Validity means does the experiment actually test what it set out to test
Reliable is an outdated term - Repeatable or Repeatablity is now preferred

Here is some advice on tables and graphs. And here on measurement and language.

Here are 13 pages of practical based questions in pdf form.

Please "like" and share with your friends if you find that this helped your improve your understanding

I regularly post new resources and videos - be the first to hear about them if you follow me on social media or join my mailing list

Useful Practical Resources

5 January 2018

A-level Biology: Practical and Experimental Design - Top Tips and Question Pack

5 January 2018

Top Tips !

Never write "amount" you mean mass, volume or concentration.
Refer to "a control experiment" or "a variable that I will control (and then name the value and method of control)" but never to "a control variable"
Independent variable is what you change.
Dependent variable is what you actually measure in the experiment (not rate).
Organisms vary from each other unless they are clones !
When you suggest improvements think about improving the method rather than the equipment (e.g. control a variable that wasn't previously)

If you use then like and share

5 January 2018

14 June 2017

How to Answer Hardy-Weinberg Questions - A-level Biology - with question pack

14 June 2017

How to understand and answer Hardy-Weinberg Questions - A-level Biology. Remember to look out for questions where they give you a dominant phenotype frequency -for instance Huntingdons disease, where the frequency of the sufferers is 1 in 100000 - therefore q squared (recessive allele phenotype) is 99999 in 100000.

if you use - then like and share

14 June 2017

6 June 2017

How to approach and answer A-level Biology Questions that need you to Analyse Figures, Tables and Images - lots of example past paper questions

6 June 2017

How to approach and answer A-level Biology Questions that need you to Analyse Figures, Tables and Images - lots of example past paper questions with the markschemes

DO NOT LOOK at the question and then look at the data to answer the question.

Look closely at the graph or table
look very carefully at the axes - have they plotted mean or rate or time, mass/volume or concentration ?
can you see range bars ?
In a table what range is in the replicates when you compare to the mean ?
what trends can you observe ? then think about what principle of biology is being shown by the the trends.
How would you explain the highest value, the lowest value, the point at which the line crosses the x axis, how would you explain the largest range, how would you change the experiment to reduce the spread in the data ?

Once you have a coherent understanding of the trends - only then look at the question.

6 June 2017

30 January 2017

Tips and Practice Questions for the Practical component of the Theory papers - A-level Biology

30 January 2017

How to improve your answers to questions about practicals in A-level Biology exam questions.

Please like and share

30 January 2017

29 December 2016

How to do Tables and Graphs - terrific guidance from Exam Boards for A-level Biology

29 December 2016

There is plenty of excellent guidance on how to plot graphs and draw tables in the OCR practical booklet ..... pdf

please like and share

29 December 2016

21 December 2016

Precise but not accurate ? Language of Measurement - crucial for Biology Practical Exam Questions

21 December 2016

Precision, control variables, independent variables ? Confusing for many students, however, particularly important now that this year practical skills are assessed in the exam paper.

Please like and share

21 December 2016

Tom Whitburn 19/01/2017 Tom Whitburn 19/01/2017

Kidney Questions with mark schemes -A level Biology Questions by topic

A level Biology Questions by topic - Kidney Questions with markschemes, useful for OCR, AQA, Eduqas

Here are lots of good questions on the kidney. I expect the kidney to appear frequently in the new style papers as they are very synoptic, give opportunities to require calculation and get students to analyse and explain data.

if you use then please like and share

If you found it useful then please ❤️ (at the bottom of the page) and share, you can follow me on instagram - alevelbiologytutor

Y13 & Y12 OCR A and AQA weekly Masterclass information

Going through past papers by topic often gives a useful insight into the thoughts of the examiners and how they see a topic and the emphasis they put on different parts of a specification. I have included all the markschemes and comments from the examiners reports. PDF below.

Link to pdf of questions with the markscheme

Biology A Level Revision Resources

Biology A level Answers

More resources

Key Concept: Averages, Range, and Standard Deviation, with A level Biology Past-Paper Questions

You need to know some maths for A level Biology. This includes knowing how to interpret averages (mean, median and mode), ranges, and standard deviations 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.

Transport in Animals: Haemoglobin, Oxygen Dissociation Curves, and the Bohr Effect

Multiple Choice Quiz - OCR A Animal Transport

Practising recall and doing questions is so important for long term retention of information. Try this self marked quiz. OCR A Animal Transport.

“Could you explain this to someone else ? ”Kidneys, nephrons, ultrafiltration, ADH - Revision and understanding through self explanation

Try using these cards with a partner to revise Kidneys, nephrons, ultrafiltration, ADH, loops of henle, and collecting ducts

Instructions

Print onto card. Cut out, place face down in a pack.
Pick up a card
Explain the concept with a whiteboard or paper.
Use all of the words on each card

Then look up the concept in a textbook and correct your mistakes.

Kidney Diseases, Dialysis and Transplant Questions - Questions by Topic

A-level Biology Questions on Kidney Dialysis and Transplants - useful powerpoints/animations and videos

If you use then like and share

Kidney Questions with mark schemes -A level Biology Questions by topic

A level Biology Questions by topic - Kidney Questions with markschemes, useful for OCR, AQA, Eduqas

if you use then please like and share

Tom Whitburn 16/01/2017 Tom Whitburn 16/01/2017

Autosomal linkage - Try with 3 Alleles ...- Genetics and A-level Biology

Students find autosomal linkage a challenge ... I suspect this is because they mentally disconnect Meiosis from gamete formation.

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Students find autosomal linkage a challenge ... I suspect this is because they mentally disconnect Meiosis from gamete formation.

Remember that the gametes in dihybrid inheritance result from the independent assortment of the chromosomes in metaphase I. Consequently, if alleles are on the SAME chromosome then they cannot assort independently and must be passed to the gamete together (linked)... unless they form chiasma in Prophase one and exchange parts of the maternal and paternal chromosome (crossing over).

Here is a pdf of the question and a markscheme