Edexcel GCSE Biology

Specialised animal cells

Edexcel GCSE Biology revision on Specialised animal cells. Aligned to the Pearson Edexcel GCSE Biology 1BI0 specification. This bank has 25 practice questions on this topic.

Sample questions (3 of 25)

  1. Question 1

    Which structural feature allows a sperm cell to achieve the energy required to reach the egg?

    • A) The haploid nucleus
    • B) Many mitochondria
    • C) An acrosome head
    • D) A long flagellum
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    Answer: Many mitochondria

    Mitochondria are the sites of aerobic respiration, which releases energy from glucose. A high concentration of mitochondria in the mid-piece of the sperm cell provides the ATP required for the tail to beat and propel the cell toward the egg.

  2. Question 2

    What is the primary function of the root hair cell extension?

    • A) To increase surface area
    • B) To store more starch
    • C) To provide structure
    • D) To transport water
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    Answer: To increase surface area

    Root hair cells have long, finger-like projections that extend into the soil. This significantly increases the surface area available for the uptake of water via osmosis and mineral ions via active transport.

  3. Question 3

    Which specific organelle is notably absent in mature red blood cells to maximise space for oxygen carriage?

    Show answer

    Answer: nucleus

    Mature red blood cells are specialised to carry oxygen efficiently throughout the body. By losing their nucleus during maturation, they gain more internal volume to pack in haemoglobin, the protein that binds to oxygen.

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