BIOLOGY A LEVEL 2024/2025 MOCK QUESTIONS WITH VERIFIED ANSWERS

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BIOLOGY A LEVEL 2024/2025 MOCK QUESTIONS WITH VERIFIED ANSWERS

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2024/2025

Institution AQA A LEVEL BIOLOGY

Course AQA A LEVEL BIOLOGY

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BIOLOGY A LEVEL 2024/2025 MOCK QUESTIONS WITH VERIFIED ANSWERS

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BIOLOGY A LEVEL 2024/2025 MOCK QUESTIONS
WITH VERIFIED ANSWERS.

1) Give three structural features found in all virus particles and describe the function of
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one of these features -- Answer ✔✔ genetic material - codes for viral protein
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Capsid - protects the genetic material
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Attachment protein - binds to complementary receptors on cell t t t t t t t t

2) Explain why viruses are described as acellular and non-living -- Answer ✔✔ acellular
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- no cell-surface membrane
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Non-living - have no metabolic reactions and cannot independently
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move/respire/replicate

3) Give one reason why antibiotics are not effective against viruses -- Answer ✔✔ -do
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not have bacterial structures/enzymes
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-do not have metabolic processes
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-do not have a cell wall
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4) Explain the importance of one adaptation of the gas exchange surface in the tracheal
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system of an insect -- Answer ✔✔ -tracheole wall one cell think so short diffusion
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pathway
-tracheoles supply tissues, so diffusion directly into cells t t t t t t t

-tracheoles are highly branched, so large surface are for rapid diffusion
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5) Explain the importance of the xylem being kept open as a continuous tube -- Answer
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✔✔ -allows unbroken water column
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-cohesion from H bonds between all water molecules t t t t t t t

-evaporation creates tension in column t t t t

6) Describe two functions of the Golgi apparatus in a eukaryotic cell -- Answer ✔✔ -
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modify/transports/packages proteins t

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Uploaded on: January 23, 2025
Number of pages: 4
Written in: 2024/2025
Type: Exam (elaborations)
Contains: Questions & answers

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