Exchange surfaces and gas exchange

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Question 15
Easy

Three microscopic organisms found in a soil sample. Organism X is a small, spherical bacterium with a flagellum. Organism Y is an elongated, rod-shaped bacterium showing a cell wall and an inner nucleoid region. Organism Z is a larger, branched protozoan with multiple pseudopodia.

Organism Y has a surface area of 15 000 μm215\,000\ \mu\text{m}^215000 μm2 and a volume of 6 000 μm36\,000\ \mu\text{m}^36000 μm3.

Calculate the surface area to volume ratio (SA:VSA:VSA:V) for Organism Y. Show your working.

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Exchange surfaces and gas exchange Questions

  1. GCSE
  2. /Biology
  3. /Exchange surfaces and gas exchange