riana lalwani 10 Questions 0 Answers 0 Best Answers 37 Points View Profile 3 riana lalwani Asked: October 21, 2020In: Class 10 How are the lungs designed in human beings to maximise the area for exchange of gases? 3 NCERT Solution for Class 10 Science Chapter 6 Life Processes NCERT Books for Session 2020-2021 CBSE Board and UP Board Intext Questions Page No-105 Questions No-4 2020-2021cbsechapter 6class10life processesncertscience Share Facebook 3 Answers Voted Oldest Recent Tulika 0 Questions 193 Answers 2 Best Answers 624 Points View Profile Tulika Added an answer on February 11, 2021 at 7:48 am The bronchioles in lungs are finely branched and end up in air sacs. The structure of air sac increases the surface area inside lungs. This helps in making a larger area for exchange of gases. 1 Reply Share Share Share on Facebook Share on Twitter Share on LinkedIn Share on WhatsApp Consult From Biology 0 Questions 21 Answers 6 Best Answers 132 Points View Profile Consult From Biology Added an answer on December 6, 2020 at 5:19 am The exchange of gases takes place between the blood capillaries that surround the alveoli and the gases present in the alveoli. Thus, alveoli are the site for exchange of gases. The lungs get filled up with air during the process of inhalation as ribs are lifted up and diaphragm is flattened. The air that is rushed inside the lungs fills the numerous alveoli present in the lungs. Each lung contains 300-350 million alveoli. These numerous alveoli increase the surface area for gaseous exchange making the process of respiration more efficient. For more answers visit to website: https://www.tiwariacademy.com/ncert-solutions/class-10/science/chapter-6/ 1 Reply Share Share Share on Facebook Share on Twitter Share on LinkedIn Share on WhatsApp yogeshsharma 0 Questions 91 Answers 21 Best Answers 398 Points View Profile yogeshsharma Added an answer on June 16, 2021 at 6:48 am In lungs, the bronchioles terminate in balloon-like structures called alveoli. The alveoli provide extensive surface where the exchange of gases can take place. The thin, moist, permeable walls of alveoli facilitate quick diffusion and exchange of gases. Moreover it is richly supplied with blood capillaries. ( the alveolar area, if spread out, covers about 80 m2 which is more than our body surface area). 0 Reply Share Share Share on Facebook Share on Twitter Share on LinkedIn Share on WhatsApp Leave an answerLeave an answerCancel reply Click on image to update the captcha. Save my name, email, and website in this browser for the next time I comment.