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Exam (elaborations)

a level biology aqa markscheme
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10

May 2025

2024/2025

A+
adaptations that maintain high rate of photosynthesis - correct answerlots of chloroplast=absorb light light senstive eyespot=detect light flagellum=enables movement to light advantage of using natural fertiliser rather than artificial - correct answeracts as soil conditioner/increases organic content of soil wider range of elements production of artificial fertiliser energy consuming less leaching advantages of using chemical pesticides to control pests of crops - correct answeracts...
innostan
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Exam (elaborations)

A-level Biology AQA paper 1 2019 Correct 100%
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3

June 2024

2023/2024

A+
Describe how a non-competitive inhibitor can reduce the rate of an enzyme controlled reaction - ANSWERBinds away from active site Changes shape of active site So no longer complementary so less substrate can bind How to identify a competitive inhibitor - ANSWERWith the inhibitor, it increases substrate conc + doesent change rate of reaction No large lipid droplets are visible with the optical microscope in the samples from suspension A. Explain why - ANSWEREmulsification Cant be seen...
papersbyjol
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AQA A-Level Biology Paper 1; A+ GRADED
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5

March 2023
AQA A-level Biology paper 1; 100% CORRECT SOLUTIONS AQA A-Level Biology Paper 1; A+ GRADED QA A Level Biology Unit 1 (Questions with correct answers)
ProPerfomer
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Exam (elaborations)

A-level biology AQA (Questions with 100% correct answers)
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3

March 2023

2022/2023

A+
give the two types of molecule from which a ribosome is made correct answers - protein - RNA describe the role of a ribosome in the production of a polypeptide correct answers - mRNA binds to ribosome - idea of two codons/ binding sites - allows tRNA with anti-codons to bind/associate - catalyses formation of peptide bonds between amino acids held by tRNa molecules - moves along mRNA to the next codon - polypeptide produced describe the structure of glucose correct answers - polysa...
ProPerfomer
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