Self marking quiz for the OCR AS Biology A H020/01 Breadth in biology paper
Read moreCarbohydrates, lipids and Food tests - Resources to Test your understanding
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
Nerves and Synapses - Resources, videos, exam questions
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Immune System - Resources to help you improve and test your understanding
Resources for learning the immune system. Powerpoints, animations, videos, self marking test and some rare immune sytem questions.
Read moreOrganelles - Test your understanding
Multiple choice questions on cell organelles, all past paper questions, a good way to assess your understanding
Read moreViruses and Prokaryotes - resources
Resources on viruses and prokaryotes
Read moreOCR A H020/01 AS Biology Breadth in biology June 2017 - Self Marking Quiz
The new style linear A level Biology exams have a very different approach to assessment so I made recorded lessons of guides to the new specification sample and 2017 A level papers and to the 2016 AS Papers.
Read morePhotosynthesis 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
How things cross membranes - resources and exam questions (lots of application and data analysis)
Cell membranes, osmosis, diffusion , active transport, - lots of experimental and application questions
Read moreProtein Synthesis - Resources, Questions and a Quiz
Protein Synthesis - exam questions a quiz and powerpoints, videos and animations, please like and share
Read moreOCR June 2017 AS Breadth in biology H020/01 Multiple Choice Questions - self marking quiz
AS OCR Breadth in biology H020/01 June 2017 Multiple Choice Questions as an auto-marking online quiz
Read morePlant transport Questions - Xylem/Phloem
Plant transport guide - videos, powerpoints, questions
Read moreOCR A June 2017 Biological diversity (H420/02) - Self Marking Quiz
OCR released the OCR A June 2017 H420 papers. I combined the Biological DIversity 420/02 paper with the markscheme to make it easier to follow and interpret.
Read moreOCR A June 2017 Unified Biology 420/03 Guide to the Paper
OCR released the OCR A June 2017 H420 papers. I combined the Unified Biology 420/03 paper with the markscheme to make it easier to follow and interpret.
Read moreOCR A June 2017 Biological Processes 420/01 Guide to the Paper
OCR released the OCR A June 2017 H420 papers. I combined the Biological Processes 420/01 paper with the markscheme to make it easier to follow and interpret.
Read moreAnswering 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.
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Read moreChallenging Questions with lots of Data Analysis and Application - A-level Biology past paper questions
Good practice if you are struggling with data analysis questions
Pack of challenging past paper questions with lots of Data Analysis and application - A-level Biology past paper questions - good for OCR and AQA specifications
Read moreOsmosis A-level Biology Past Paper Exam Questions
Pack of past paper questions on Osmosis and Water potential - I have tried to include one question of each type
Read moreHow to do Tables and Graphs - terrific guidance from Exam Boards for A-level Biology
There is plenty of excellent guidance on how to plot graphs and draw tables in the OCR practical booklet ..... pdf
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Read morePrompting some festive recapping ? - Looking back at first year A-level Biology topics
Prompting some festive recapping ? - Looking back at first year A-level Biology topics
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