There are two lungs in the thoracic cavity i.e. This article provides you with a quick revision of the circulatory system. Take this multiple-choice quiz on the human respiratory system and share with your friends too. The last product of anaerobic respiration is pyruvic acid. The terminal bronchioles are the smallest airways without alveoli c. Anatomic dead space = 150 ml d. Alveoli are about 0.3 mm in diameter e. All of the above are true 2. 6. Jan 19,2021 - MCQ (Practice) - Respiratory System (Level 1) | 90 Questions MCQ Test has questions of Class 11 preparation. Introduction: Circulatory systems are of two types Open Circulatory system and Close Circulatory System. Required fields are marked *. 1. Do you know all there is to this specific system? Stay tuned with BYJU’S Biology for more MCQs on Respiratory system and other Biology related topics. In all mammals, a pair of spongy lungs are present and air inhale and exhale at a definite rate which is called as breathing. If you get a question right the next one will appear automatically, but if you get it wrong we'll tell you the correct answer. (d) It is controlled by the neurons, located in the medulla and pons. right lung and left lung. The respiratory system is responsible for the exchange of gases in the living organisms. This test will be forwarded to your supervisor only if he/she has contacted the training and education group. Thus in this process low pressure is developed inside the lungs and that’s why atmospheric air enters. Choose your answers to the questions and click 'Next' to see the next set of questions. 10. Explanation are given for understanding. The exchange of gases between the external environment and the lungs______. Each lung is surrounded by a membrane which is called, The exchange of gases takes place inside the. Circulatory system. All the PYQ asked in SSC Exams are also covered in this course (b) It prevents the invading pathogens into the trachea, (c) It is an organ made of cartilage and connects the pharynx to the trachea. Respiration involves one of the following sets of processes Inspiration, exchange of gases, Expiration Aspiration, Inspiration, Expiration External, Internal and Expiration None of the above Answer: 1 Q2. Lungs are sponge-like cylindrical in structure and its colour is. In which part of the respiratory system, gaseous exchange takes place? (a) Alveoli. Email. through the oesophagus and gullet. Check the below NCERT MCQ Questions for Class 11 Biology Chapter 17 Breathing and Exchange of Gases with Answers Pdf free download. Share: Answer : 3. 14. The body's system of nerves. Explanation are given for understanding. 3. It helps in breathing, ingestion of food and speech. A pair of holes is present above mouth and in human beings, it is called as a nostril. The solved questions answers in this Test: Respiratory Organs, Human Respiratory System quiz give you a good mix of easy questions and tough questions. Oxygenated blood from lungs is carried to heart by Pulmonary artery Pulmonary vein Coronary vein Pre-cavals Answer: 2 Q3. The total number of alveoli present in the human lungs is estimated to be around ______. 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