Transport in Animals

Transport in Animals Quiz

Spec 8.1–2 · Edexcel GCSE Biology: Quiz

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5 questions, one answer each

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  1. 1. Which is NOT normally transported by blood?

    • A. Oxygen
    • B. Urea
    • C. Oxygen from plant photosynthesis in leaves
    • D. Dissolved glucose

  2. 2. Effect of increasing size on SA:volume ratio?

    • A. Increases
    • B. Decreases
    • C. Stays same
    • D. Becomes negative

  3. 3. Which cell produces antibodies?

    • A. Phagocytes
    • B. Platelets
    • C. Lymphocytes
    • D. Red blood cells

  4. 4. Why do veins contain valves but arteries don't?

    • A. Veins carry low pressure blood, need valves to prevent backflow
    • B. Veins carry more blood
    • C. Valves speed up flow
    • D. Arteries too narrow for valves

  5. 5. Single-celled organism relies on diffusion; multicellular animal cannot. Why?

    • A. Animals don't need oxygen
    • B. Single cell has larger SA:vol ratio; animal's lower ratio makes diffusion too slow
    • C. Thicker membranes block diffusion
    • D. Diffusion only works in single cells

Quiz