[Campbell Biology P.970] Which statement accurately describes the primary function of differ... | Practice Question

Which statement accurately describes the primary function of different types of blood vessels as depicted in the provided diagram?

  • A: Wide, thick-walled vessels are optimized for gas exchange due to their large surface area.
  • B: Networks of highly branched, thin-walled vessels minimize resistance to fluid flow.
  • C: Highly branched, thin-walled vessels maximize exchange efficiency by slowing fluid flow and maximizing surface area.
  • D: Both types of vessels primarily function in pumping blood through the system.

Explanation

The diagram annotation explicitly states: 'Networks of highly branched, thin-walled vessels maximize exchange efficiency by slowing fluid flow and maximizing surface area.' This refers to capillaries, which are crucial for gas exchange. Wide, thick-walled vessels arteries and veins minimize resistance and transport blood efficiently, while the heart acts as the pump.