Sentences of a paragraph are given below in jumbled order. Arrange the sentences in the correct order to form a meaningful and coherent paragraph.
1. This essential gas then diffuses into the bloodstream, binding with haemoglobin in red blood cells. 2. Respiration is a complex physiological process vital for sustaining human life. 3. Simultaneously, carbon dioxide, a waste product, moves from the blood into the alveoli to be exhaled. 4. It begins with the inhalation of air, where oxygen travels through the airways to tiny air sacs called alveoli in the lungs.
Show answerAnswer & explanation
Correct option: A — 2, 4, 1, 3
2, 4, 1, 3 Sentence 2 will be the starting line as it introduces the main idea of the parajumble, i.e. respiration is a vital physiological process. Sentence 4 then describes the initial step of this process: inhalation and oxygen reaching the alveoli. So, sentence 4 will follow sentence 2. Further, sentence 1 explains what happens next with the oxygen, i.e. diffusion into the bloodstream. Finally, sentence 3 details the concurrent process of carbon dioxide removal. Going through the options, option (a) has the correct sequence.
