AQA A LEVEL BIOLOGY PAPER 1
AQA A LEVEL BIOLOGY Paper 1
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AQA A-level Biology paper 1
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AQA A-level Biology paper 1 Rated A 
large molecules often contain carbon. why? Ans- they can readily form bonds with other carbon atoms. 
this forms a 'backbone'. other atoms can then attach. 
describe benedicts test for reducing sugars Ans- add equal volumes of the sugar sample and benedicts 
reagent. 
heat the mixture in a water bath for 5 minutes. 
brick red precipitate will form. 
what is a reducing sugar? Ans- a sugar that can reduce (give electrons to) another chemical. 
describe the ...
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AQA A-Level Biology Paper 1
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AQA A-Level Biology Paper 1 
Describe the role of a ribosome in the production of a polypeptide. /3 Ans- 1. mRNA binds to ribosome; 
2. Idea of TWO codons/binding sites; 
3. tRNA with ANTICODONS binds; 
4. (Catalyses) formation of PEPTIDE bond between AMINO ACIDS (held by tRNA molecules); 
5. Moves along (mRNA to the next 
codon); 
Describe the structure of glycogen. /2 Ans- 1. Polysaccharide of α-glucose; 
OR 
polymer of α-glucose; 
2. (Joined by) glycosidic bonds 
OR 
Branched structure; 
NH...
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AQA A-Level Biology Paper 1
- Exam (elaborations) • 10 pages • 2023
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AQA A-Level Biology Paper 1 2023 
Describe the role of a ribosome in the production of a polypeptide. /3 Ans- 1. mRNA binds to ribosome; 
2. Idea of TWO codons/binding sites; 
3. tRNA with ANTICODONS binds; 
4. (Catalyses) formation of PEPTIDE bond between AMINO ACIDS (held by tRNA molecules); 
5. Moves along (mRNA to the next 
codon); 
Describe the structure of glycogen. /2 Ans- 1. Polysaccharide of α-glucose; 
OR 
polymer of α-glucose; 
2. (Joined by) glycosidic bonds 
OR 
Branched structure...
-
AQA A-Level Biology Paper 1
- Exam (elaborations) • 10 pages • 2023
- Available in package deal
-
- $9.89
- + learn more
AQA A-Level Biology Paper 1 2023 
Describe the role of a ribosome in the production of a polypeptide. /3 Ans- 1. mRNA binds to ribosome; 
2. Idea of TWO codons/binding sites; 
3. tRNA with ANTICODONS binds; 
4. (Catalyses) formation of PEPTIDE bond between AMINO ACIDS (held by tRNA molecules); 
5. Moves along (mRNA to the next 
codon); 
Describe the structure of glycogen. /2 Ans- 1. Polysaccharide of α-glucose; 
OR 
polymer of α-glucose; 
2. (Joined by) glycosidic bonds 
OR 
Branched structure...
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AQA A LEVEL BIOLOGY PAPER 1 7402-1 2021 MARK SCHEME MS
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AQA A LEVEL BIOLOGY PAPER 1 
7402-1 2021 MARK SCHEME MSA-level 
BIOLOGY 
7402/1 
Paper 1 
Mark scheme 
June 2021 
Version: 1.0 Final 
A+ 
*216a7402/1/MS* 
A+ 
MARK SCHEME – A-LEVEL BIOLOGY – 7402/1 – JUNE 2021 
Mark schemes are prepared by the Lead Assessment Writer and considered, together with the relevant 
questions, by a panel of subject teachers. This mark scheme includes any amendments made at the 
standardisation events which all associates participate in and is the scheme which was...
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AQA A-LEVEL BIOLOGY PAPER 1 MARKING SCHEME 2022
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AQA A-LEVEL BIOLOGY PAPER 1 MARKING SCHEME 2022
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AQA A LEVEL BIOLOGY PAPER 1 Exam (elaborations)
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AQA A LEVEL BIOLOGY PAPER 1 Exam (elaborations)
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AQA A LEVEL BIOLOGY PAPER 1 MARKING SCHEME 2022
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A-level BIOLOGY 7402/1 
Paper 1 Mark scheme June 2020 
Version: 1.0 Final 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
*206A7402/1/MS* 
@gatuso 
 
 
 
 
 
Mark schemes are prepared by the Lead Assessment Writer and considered, together with the relevant questions, by a panel of subject teachers. This mark scheme includes any amendments made at the standardisation events which all associates participate in and is the scheme which was used by them in this examination. The standar...
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AQA A-LEVEL BIOLOGY PAPER 1 2021
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AQA A-LEVEL BIOLOGY PAPER 1 2021
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AQA A-LEVEL BIOLOGY PAPER 1
- Exam (elaborations) • 41 pages • 2022
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AQA A LEVEL BIOLOGY PAPER 1
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