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AQA A LEVEL BIOLOGY TOPIC 3 WITH COMPLETE SOLUTIONS

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14 pages

Written in 2023/2024

Grade A+

BESTEXAMINER1

Smaller organisms have a ........... surface area to volume ratio Higher How do single called organisms exchange substances? Diffuse directly into or out of the cell across the cell surface membrane Give 2 reasons why in multicellular organisms, diffusion across outer membrane would be too slow? 1. Some cells deep within body- big distance between them and outside 2. Larger animals have low surface area to volume ratio- difficult to exchange enough substances to supply large volume What 2...

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23 pages

Written in 2023/2024

Grade A+

ProfessorFrancis

AQA A Level Biology Topic 3 Exam Questions with complete solutions

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18 pages

Written in 2024/2025

Grade A+

Lectphilip

this sis collection quality documents with good questions and verified answers about AQA A-Level Biology with different topics. i guarantee it will will a big deal on your quest for success. grab it now

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10 items

ProfessorFrancis

Why are Microorganisms able to perform exchange via their surface? • have a large surface area to volume ratio • have a short diffusion distance • have low demand How do Microorganisms Obtain Nutrients & Remove Waste? • by exchange via their surface • nutrients (e.g. glucose, oxygen) move in by diffusion via their surface • waste (e.g. carbon dioxide) move out by diffusion via their surface Why can't Animals/Plants perform exchange via their surface? • have a small surface ...

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30 pages

Written in 2023/2024

Grade A+

ProfessorFrancis

AQA A-Level Biology - Topic 3 All Answers Correct Smaller organisms have a ........... surface area to volume ratio How do single called organisms exchange substances? Higher Diffuse directly into or out of the cell across the cell surface membrane Give 2 reasons why in multicellular organisms, diffusion across outer membrane would be too slow? 1. Some cells deep within body- big distance between them and outside 2. Larger animals have low surface area to volume ratio- difficul...

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13 pages

Written in 2023/2024

Grade A+

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