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AQA AS BIOLOGY 7401/1 Paper 1 June 2022 Question Paper

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AQA AS BIOLOGY 7401/1 Paper 1 June 2022 Question Paper. Describe the mechanism for the absorption of amino acids in the ileum. Give the two types of molecule from which a ribosome is made. The resolution of an image obtained using an electron microscope is higher than the resolution of an image obtained using an optical microscope. Explain why. [1 mark] Question 3 continues on the next page S - The Marketplace for Revision Notes & Study Guides Downloaded by: tamimi | Distribution of this document is illegal Want to earn £756 extra per year? S - The Marketplace for Revision Notes & Study Guides 6 *06* IB/M/Jun22/7401/1 Do not write outside the 0 3 box . 4 A student determined the size of a cell structure from a photograph obtained using a microscope. He used a ruler and a calculator and gave the answer in μm Describe how the student determined the size of the structure. [2 marks] 0 3 . 5 Name two structures found in all bacteria that are not found in plant cells. [2 marks] 1 2 0 3 . 6 Name two features of HIV particles that are not found in bacteria. Do not include attachment protein in your answer.

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Uploaded on
June 24, 2023
Number of pages
29
Written in
2022/2023
Type
Exam (elaborations)
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  • aqa as biology

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AQA AS BIOLOGY 7401/1 Paper
1 Question Paper June 2022

, Stuvia.co.uk - The Marketplace for Revision Notes & Study Guides




Please write clearly in block capitals.

Centre number Candidate number


Surname

Forename(s)

Candidate signature
I declare this is my own work.



AS
BIOLOGY
Paper 1

Time allowed: 1 hour 30 minutes
Materials For Examiner’s Use
For this paper you must have:
• a ruler with millimetre measurements Question Mark
• a scientific calculator. 1
2
Instructions
• Use black ink or black ball-point pen. 3
• Fill in the boxes at the top of this page. 4
• Answer all questions. 5
• You must answer the questions in the spaces provided. Do not write
6
outside the box around each page or on blank pages.
• If you need extra space for your answer(s), use the lined pages at the end of 7
this book. Write the question number against your answer(s). 8
• Show all your working.
9
• Do all rough work in this book. Cross through any work you do not want
to be marked. TOTAL

Information
• The marks for the questions are shown in brackets.
• The maximum mark for this paper is 75.




*JUN227401101*
IB/M/Jun22/E9 7401/1

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2
Do not write
outside the
Answer all questions in the spaces provided. box




0 1 . 1 Figure 1 shows the structure of some biological molecules.

Figure 1




*02*

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