As biology Study guides, Revision notes & Summaries
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AQA AS BIOLOGY Paper 1 FOR MAY 2023
- Exam (elaborations) • 34 pages • 2023
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AQA 
 
 
 
 
AS 
BIOLOGY 
Paper 1 
 
Monday 15 May 2023	Morning	Time allowed: 1 hour 30 minutes 
Materials 
For this paper you must have: 
•	a ruler with millimetre measurements 
•	a scientific calculator. 
 
Instructions 
•	Use black ink or black ball-point pen. 
•	Fill in the boxes at the top of this page. 
•	Answer all questions. 
•	You must answer the questions in the spaces provided. Do not write outside the box around each page or on blank pages. 
•	If you need extra space fo...
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2024 AQA AS BIOLOGY 7401/1 Paper 1 Question Paper & Mark scheme (Merged) June 2023 VERIFIED / Biology AQA AS level 7401/1 Paper 1
- Exam (elaborations) • 7 pages • 2024
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2024 AQA AS BIOLOGY 7401/1 
Paper 1 Question Paper & 
Mark scheme (Merged) June 
2023 VERIFIED / Biology AQA 
AS level 7401/1 Paper 1 
Describe the induced-fit model of enzyme action - ANSWER-- 
active site not complementary to/does not fit substrate 
- Shape of active site changes as enzyme- substrate complex forms 
- Distorting bonds (in substrate leading to reaction) 
• The human cell then makes a complementary strand to the HIV DNA. 
The complementary strand is made in the same way as a ne...
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AQA AS BIOLOGY 7401/1 Paper 1 Version: 1.0 Final *JUN237401101* IB/M/Jun23/E8 7401/1/ QUESTION PAPER & MARKING SCHEME/ [MERGED] Marl( scheme June 2023
- Exam (elaborations) • 47 pages • 2024
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AQA 
AS 
BIOLOGY 
7401/1 
Paper 1 
Version: 1.0 Final 
*JUN* 
IB/M/Jun23/E8 7401/1 
For Examiner’s Use 
Question Mark 
1 
2 
3 
4 
5 
6 
7 
8 
9 
TOTAL 
Monday 15 May 2023 Morning Time allowed: 1 hour 30 minutes 
Materials 
For this paper you must have: 
• a ruler with millimetre measurements 
• a scientific calculator. 
Instructions 
• Use black ink or black ball-point pen. 
• Fill in the boxes at the top of this page. 
• Answer all questions. 
• You must answer the questions in t...
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AQA AS LEVEL BIOLOGY PAPER 2 MARK SCHEME JUNE 2023 (7401/2)
- Exam (elaborations) • 17 pages • 2023
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AQA AS LEVEL BIOLOGY PAPER 2 MARK SCHEME JUNE 2023 (7401/2)
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IAL Biology Unit 5 - Potential Questions and Answers for the Scientific Article - JUNE 2024
- Exam (elaborations) • 52 pages • 2024
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Potential questions for Pearson Edexcel International Advanced Level for use with Question 8 – Unit 5, June 2024 
 
In unit 5, the last question (question 8) is based on a pre-released scientific article a total of 30 marks. 
 
In this document, you will find potential questions and answers for the Scientific Article for question 8 for Biology IAL (International Advanced Level) WBI15/01. 
 
(The article is provided by Pearson Edexcel Examination – June 2024) 
 
This document consists of 
o A...
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AQA AS BIOLOGY Paper 1 June 2023 Official Question paper
- Exam (elaborations) • 34 pages • 2023
- Available in package deal
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AS 
BIOLOGY 
Paper 1 
June 2023 
Official Question paper
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AQA AS BIOLOGY Paper 2 June 2023 official question paper
- Exam (elaborations) • 40 pages • 2023
- Available in package deal
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AS 
BIOLOGY 
Paper 2 
June 2023 
official question paper
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aqa AS BIOLOGY Paper 1 (7401/1) May 2023 Question Paper.
- Exam (elaborations) • 34 pages • 2023
- Available in package deal
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aqa AS BIOLOGY Paper 1 (7401/1) May 2023 Question Paper. 
1. Describe the primary structure of all proteins. 2. This question is about the genetic code. Define universal, non-overlapping and degenerate. 3. Describe how the appearance of the area containing DNA in a TEM image of a eukaryotic cell would differ from that shown in Figure 1. 4. Describe one difference between the structure of DNA in a prokaryotic cell and in a eukaryotic cell. 5. Streptococcus bacteria can infect the lungs when air i...
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2023 AQA AS BIOLOGY 7401/2 Paper 2 Question Paper & Mark scheme (Merged) June 2023 [VERIFIED]
- Exam (elaborations) • 49 pages • 2024
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2023 AQA AS BIOLOGY 7401/2 Paper 2 
Question Paper & Mark scheme (Merged) June 
2023 [VERIFIED]
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