By signing in you confirm you are 18 or older, or have your parent’s or guardian’s consent.

NDA 2 2025 GAT, question 135

Topic: Biology

Q135

Which one among the following statements about arteries and veins in humans is NOT correct ?

  1. (a) Arteries carry blood away from heart while veins bring blood towards the heart
  2. (b) Pulmonary arteries always carry oxygenated blood while Pulmonary veins always carry deoxygenated bloodCorrect answer
  3. (c) Arteries have thicker and more elastic walls compared to veins in general
  4. (d) Arteries do not have valves but veins do have valves

Solution.

Answer: (b) Pulmonary arteries always carry oxygenated blood while Pulmonary veins always carry deoxygenated blood

  1. Pulmonary arteries normally carry deoxygenated blood from the right ventricle to the lungs, while pulmonary veins return oxygenated blood to the left atrium.
  2. Option (b) reverses these.
  3. Arteries and veins are defined by direction relative to the heart, not by oxygen content.