Textbook: Observing Exchange Surfaces

£3.99

Master Observing Exchange Surfaces fast ⚡ – clear explanations, supportive visuals, OCR-aligned.

Master Observing Exchange Surfaces fast ⚡ – clear explanations, supportive visuals, OCR-aligned.

You’ll cover
• How to identify specialised exchange surfaces in animals and plants from photomicrographs.
• Recognition of alveoli and capillary networks in lung tissue.
• Identification of villi, epithelial lining and brush border in the small intestine.
• Recognition of glomeruli and Bowman’s capsule in kidney tissue.
• Identification of root hair cells in plant roots and how they increase surface area.
• How structural features visible in images relate to exchange efficiency.

What’s included
• A wide range of labelled photomicrographs showing animal and plant exchange surfaces.
• Clear annotated images of alveoli, villi, brush border, glomeruli and root hair cells.
• Side-by-side visual comparisons linking structure to exchange function.
• Guidance on interpreting unfamiliar photomicrographs using visible features.
• Concise spec reminders embedded alongside images to reinforce key OCR wording and expectations.

Format
Web-based textbook topic. Mobile/desktop friendly. Access with no time limit, updates included.

FAQs

What's included in my purchase?

Full details are listed in the product description above. For digital resources, you'll get instant access after checkout. For services, we will aim to deliver the service in 5 working days.

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Which exam boards are digital resources for?

All resources are written specifically for OCR A Level Biology A (H420). We do not currently offer resources for other exam boards.

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For digital resources, there's no time limit - access starts the moment you purchase.

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