A Level Biology A H420/01 | 2025/2026 Exam Q&A on Biological Processes with Diagrams

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A Level Biology A H420/01 | 2025/2026 Exam Q&A on Biological Processes with Diagrams

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Institution A Level Biology

Course A Level Biology

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This document presents a full set of updated and correctly solved questions for the A Level Biology A H420/01 Biological Processes exam for 2025/2026. It includes multiple-choice and structured questions on microscopy, plant transport, respiration, neural transmission, ATP, and spirometry, with some answers supported by calculations and diagram-based analysis. Ideal for students seeking a complete and reliable revision resource aligned with current AQA exam standards.

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A Level Biology A H420/01 Biological
processes 2025/2026 Exam Questions
and Correct Answers | New Update

Which of the following statements, A to D, about differential staining is not

true?

A Differential staining can distinguish between different organelles. B

Differential staining can distinguish between types of cell.

C Differential staining can distinguish between types of organism. D

Differential staining is a common feature of electron microscopy - 🧠

ANSWER ✔✔D-Differential staining is a common feature of electron

microscopy

Which of the following statements, A to D, about microscopes is correct?

A A light microscope with an eyepiece lens magnification of ×10 and an

objective lens magnification of ×50 will have an overall magnification of

×60.

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, B Scanning electron microscopes and laser scanning confocal microscopes

can both produce three dimensional images.

C The maximum resolution of a scanning electron microscope is lower than

that of a light microscope.

D Transmission electron microscopes and laser scanning confocal

microscopes can both produce three dimensional images - 🧠 ANSWER

✔✔B-Scanning electron microscopes and laser scanning confocal

microscopes can both produce three dimensional images

Which of the rows, A to D, correctly identifies the name of the tissue

labelled E and the functions of tissue F and tissue G? Name of tissue E

Function of tissue F Function of tissue G

A cambium, transport of assimilates, transport of water

B cambium, transport of water, transport of assimilates

C palisade cells, transport of assimilates, transport of water

D palisade cells, transport of water ,transport of assimilates - 🧠 ANSWER

✔✔A cambium, transport of assimilates, transport of water

Which of the following statements, A to D, does not correctly describe the

structure or formation of plant vascular tissues?

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Uploaded on: June 15, 2025
Number of pages: 13
Written in: 2024/2025
Type: Exam (elaborations)
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