Photosynthesis - OCR A MCQs Self Marking Quiz
Self-marking multiple choice quiz for Photosynthesis. Using OCR A past paper exam questions.
“Could you explain this to someone else ? ” Photosynthesis and Respiration - Revision and understanding through self explanation
Recent research shows the effectiveness of self explanation
Try using these cards with a partner to revise respiration and photosynthesis
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.
Work your way through the pack.
Recent research shows the effectiveness of self explanation ie could you explain this to someone else
Try using these cards with a partner to revise respiration and photosynthesis
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.
Work your way through the pack.
Please like and share (and click on a advert to help with the hosting costs !)
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
Powerpoints and notes, a pack of long data analysis exam questions and a test on photosynthesis
Please like and share
Tips for Photosynthesis
Light Dependent Reactions - 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
Understanding Photosynthesis - Tips, Videos, PowerPoints and Pack of Exam Questions with Markscheme
Understanding Photosynthesis - Tips, Videos, PowerPoints and Pack of Exam Questions with Markscheme
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Photosynthesis is a challenge - I suggest you start with Calvin cycle and then think about the purpose of the LDR in producing the NADPH and the ATP required to regenerate the RuBP.
Calvin Cycle amazing animation
Light Dependent Reactions - amazing animation
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Find the mistakes ... Surprisingly popular Photosynthesis revision for A-level Biology
Surprisingly popular Photosynthesis revision
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This exercise of find the errors then correct them goes down extremely well with my students as an excellent way of going over photosynthesis
Respiration Photosynthesis and AS knowledge - a terrific synoptic A-level Biology question
One from the OCR Unifying concepts paper, combines respiration and photosynthesis.
(a) think photolysis and Oxygen accepting electrons ...
(b) is about phosphorylation and diffusion gradients
(c) is about the nature of passive transport and using proteins
(d) is about endosymbionts and prokaryotes
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One from the OCR Unifying concepts paper, combines respiration and photosynthesis.
(a) think photolysis and Oxygen accepting electrons ...
(b) is about phosphorylation and diffusion gradients
(c) is about the nature of passive transport and using proteins
(d) is about endosymbionts and prokaryotes
Linking Photosynthesis and Respiration - a wonderful synoptic exercise for A-level Biology
Try this, a terrific exercise to link Photosynthesis and Respiration. Excellent end of term revision.
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