Question

Name the process by which plant parts like roots, stems, and leaves get oxygen required for respiration.

Answer 1

Diffusion.

• In roots, the oxygen present in the air in the soil diffuses into the root hair cells and is then transported to all the cells of the root for respiration.
• In young stems and leaves oxygen from the air diffuses in through stomata and reaches all the cells for respiration.
• In woody stems, the diffusion occurs through lenticels instead of the stomata.