NCERT Exemplar Class 11 Biology Chapter 18 Solutions: Body Fluids and Circulation
NCERT Exemplar Solutions for Class 11 Biology Chapter 18 deals with the concepts of Body Fluids and Circulation. There are three types of cells found in blood – red blood cells, white blood cells, and platelets. In this chapter of NCERT Exemplar Class 11 Biology, Blood groups in humans are categorized into A, B, AB, and O systems based on the appearance or non-appearance of two surface antigens. The other main topics of the chapter of NCERT Exemplar Class 11 Biology Solutions include Lymph, Circulatory pathways, double pathways, regulation of cardiac activity, and disorders of the circulatory system.
There are 4 exercises with a total of 42 questions in NCERT Exemplar Problems and Solutions for Class 11 Biology Chapter 18. All these solutions are prepared by expert Biology teachers who have great years of experience. So, if you are facing difficulty while answering the exemplar problems of Chapter 18 – Body Fluids and Circulation, then these solutions are sure to help you.
You can refer to these solutions for CBSE exam preparation as well as for competitive exam preparation. Additionally, scoring more marks will become easy for you using our comprehensive solutions. You can follow these solutions online to clear your doubts and make your concepts stronger.
Important Topics for NCERT Biology Exemplar Solutions Class 11 Chapter 18 – Body Fluids and Circulation
Blood is also called connective tissue. It is responsible for carrying oxygen, nutrients, respiratory gases, and hormones to the body, and waste materials of the body away from it. The total volume of the blood in the human body is about seven per cent of the total body’s weight which will be between 5 to 5.5 litres of blood. Human blood consists of 4 constituents that offer precise tasks, including:
- Red Blood Cells
- White Blood Cells
- Lymphocytes include T-lymphocyte and B-lymphocytes.
Lymph is a pale fluid existing in the interstitial tissues of the human body. It flows throughout the lymphatic system. It can be described as the blood without the RBCs. The interchange of nutrients, hormones, and gases happens through this fluid. It comprises lymphocytes that play a key function in the immune responses of the human body.
Human Circulatory System
The human circulatory system comprises four main organs, which function together and each of them has definite roles and functions that support in smooth circulation of blood to various parts of the body. The vibrant circulatory system organs consist of the following:
- Blood Vessels
- Lymphatic system
Structurally, humans have a sealed circulatory system, signifying that the blood flows through barred loops, which is methodically pumped by the heart. The human heart is a four-chambered organ that is prepared for a distinct kind of muscle known as the cardiac muscle. This is rather exclusive as the cardiac muscle is highly unaffected by tiredness and fatigue due to the large numbers of mitochondria existing within it.
Exercise-wise Discussion of NCERT Biology Exemplar Solutions Class 11 Chapter 18 – Body Fluids and Circulation
Exercise 1 –Multiple Choice Questions (MCQs)
In this exercise of Chapter 18 – Body Fluids and Circulation there are a total of 16 multiple choice questions that are based on the concepts of are three types of cells found in blood – red blood cells, white blood cells, and platelets. In these questions, you will be provided with the four options, out of those options you have to choose the right answer.
Exercise 2 – Very Short Answer Type Questions
This exercise consists of a total of 12 questions which are very short answer type questions. Practising these questions will provide you with an in-depth understanding of the chapter.
Exercise 3 –Short Answer Type Questions
This is the last exercise of the chapter and there are a total of 9 questions in total. Practice well to understand the concepts better.
Exercise 4 –Long Answer Type Questions
This is the last exercise of the chapter with 5 exemplar problems. These are long answer type questions based on the important topics of the chapter.
Why Use NCERT Biology Exemplar Solutions Class 11 Chapter 18 – Body Fluids and Circulation by Instasolv?
NCERT Exemplar Class 11 Problems and Solutions for Biology Chapter 18 prepared by Instasolv are aimed at helping you prepare the subject by clearing your concepts and making your concepts stronger. Moreover, these solutions explain each topic within the chapters to provide you with a better understanding of the chapter.
So, if you are solving the NCERT Exemplar Solutions for Class 11th Biology Chapter 18 – Body Fluids and Circulation then you can definitely score better marks in the CBSE exams as well as the entrance exams. You can access these solutions provided by Instasolv at any time and from anywhere for free. Follow now!