NCERT Exemplar Class 11 Biology Chapter 17 Solutions: Breathing and Exchange of Gases
NCERT Exemplar Solutions for Class 11 Biology Chapter 17 ‘Breathing and Exchange of Gases’ will make you understand the function of the human respiratory system in detail. During the procedure of respiration, cells consume oxygen for metabolism and generate energy along with carbon dioxide. During the first step in respiration, we grasp atmospheric air and blow out alveolar air.
Chapter 17 of NCERT Exemplar Class 11 Biology– ‘Breathing and Exchange of Gases’ has 4 exercises with 32 exemplar problems. Major topics covered in this chapter of Biology include respiratory organs, mechanism of breathing, exchange of gases, transport of gases, regulation of respiration, and disorders of the respiratory system. Our subject matter experts have created clear and concise solutions for NCERT Exemplar Problems and Solutions for chapter 17 to help you find all the answers instantly.
The NCERT Exemplar Solutions for Class 11 Biology will help you get a better understanding of the difficult concepts. Referring to the solutions you will get step by step solutions to the important exemplar problems in an accurate manner. Also, this will help you score good marks in the Physics exam. Get NCERT Exemplar Class 11 Biology Solutions today and solve all your doubts related to the chapter.
Important Topics for NCERT Biology Exemplar Solutions Class 11 Chapter 17 – Breathing and Exchange of Gases
Respiration is a metabolic procedure, which is supported by all living organisms counting plants, animals, and humans for the production of energy and to stay alive. Except for required anaerobes, every other organism from amoeba to humans need oxygen to live. And development has projected a number of systems that assist the exchange of gases in organisms.
Types of Respiration
Generally, there are two types of respiration available including:
- Aerobic Respiration — it occurs in the presence of oxygen to generate energy.
- Anaerobic Respiration — it occurs in the absence of oxygen to generate energy.
For illustration, insects respire over a network of tubes known as tracheae, fishes respire through their gills, and earthworms respire through their moist skin by retaining diffusion. Humans and nearly all other vertebrates respire through their lungs or gills.
Fascinatingly, there are even more unusual procedures by which definite organisms breathe. Take the example of Labyrinth fish, apart from the gills, this fish has an organ known as the labyrinth. This allows it to respire the air from above the surface of the water.
Human Respiratory System
The human respiratory system is a set of organs and structures that help enable the interchange of gases in humans. It consists of the following:
- Nose and Mouth
- Bronchi and the Bronchioles
The actual interchange of gases occurs in tiny, innumerable structures known as the alveoli and the capillaries in the lungs. Now, de-oxygenated blood develops re-oxygenated and sent to the heart, where it is pumped to all the other parts of the body. Usually, most illness and disease of the respiratory system happens when the alveoli or bronchial tubes are spoiled or inflamed. For example, asthma is a disease where the airways get swollen and it tempts difficulties while breathing.
Exercise-wise Discussion of NCERT Biology Exemplar Solutions Class 11 Chapter 17 – Breathing and Exchange of Gases
Exercise 1 –Multiple Choice Questions (MCQs)
The first exercise of the chapter has around 15 exemplar problems which are multiple-choice questions. These problems are based on the function of the human respiratory system.
Exercise 2 – Very Short Answer Type Questions
This exercise has around 10 exemplar problems which are completely related to the main topics of this chapter including the respiratory organs, mechanism of breathing, exchange of gases, transport of gases, regulation of respiration, and disorders of the respiratory system. This exercise consists of different types of questions including fill in the blanks, state true and false, etc.
Exercise 3 –Short Answer Type Questions
Exercise 3 has around 4 short answer type exemplar problems. Practice well to make your concepts stronger.
Exercise 4 –Long Answer Type Questions
This exercise set has a total of 3 exemplar problems in which you need to give a proper explanation of the situation mentioned.
Why Use NCERT Biology Exemplar Solutions Class 11 Chapter 17 – Breathing and Exchange of Gases by Instasolv?
Biology is an important subject in Class 11 Biology that needs to be prepared thoroughly in order to score good marks in the exam.
However, if you are not able to understand the main topics in the NCERT Exemplar Class 11 Biology Text Book, then it can get difficult for you to complete the whole syllabus and perform well in your CBSE exams.
So, if you want to score well in the Biology exam then it is essential that you consider learning using NCERT Exemplar Class 11 Biology Solutions for Chapter 17 ‘Breathing and Exchange of Gases’. It can help you cover the maximum syllabus with minimum efforts. So, it is suggested to follow the exemplar solutions provided by Instasolv now.