Biology 9700 · AS & A Level · Cells as the basic units of living organisms

Cells as the basic units of living organisms — practice question

Which row gives the correct description of the features of two heart chambers?

  • Aleft atrium: large force of contraction to allow blood to travel a long distance; left ventricle: large force of contraction to allow blood to travel a long distance
  • Bleft atrium: small force of contraction as blood only needs to travel a short distance; left ventricle: large force of contraction to allow blood to travel a long distance
  • Cleft atrium: small force of contraction as blood only needs to travel a short distance; left ventricle: small force of contraction as blood only needs to travel a short distance
  • Dleft atrium: large force of contraction to allow blood to travel a long distance; left ventricle: small force of contraction as blood only needs to travel a short distance

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