NCERT Solutions Class 11 Biology Chapter 18 Body Fluids And Circulation– Here are all the NCERT solutions for Class 11 Biology Chapter 18. This solution contains questions, answers, images, explanations of the complete chapter 18 titled Body Fluids And Circulation Biology taught in Class 11. If you are a student of Class 11 who is using NCERT Textbook to study Biology, then you must come across chapter 18 Body Fluids And Circulation after you have studied the lesson, you must be looking for answers of its questions. Here you can get complete NCERT Solutions for Class 11 Biology Chapter 18 Body Fluids And Circulation in one place.
NCERT Solutions Class 11 Biology Chapter 18 Body Fluids And Circulation
Here on AglaSem Schools, you can access to NCERT Book Solutions in free pdf for Biology for Class 11 so that you can refer them as and when required. The NCERT Solutions to the questions after every unit of NCERT textbooks aimed at helping students solving difficult questions.
For a better understanding of this chapter, you should also see summary of Chapter 18 Body Fluids And Circulation , Biology, Class 11.
Body Fluids And Circulation
NCERT Solutions Class 11 Biology chapter 18 Body Fluids And Circulation
Class 11, Biology chapter 18, Body Fluids And Circulation solutions are given below in PDF format. You can view them online or download PDF file for future use.
Body Fluids And Circulation
Did you find NCERT Solutions Class 11 Biology chapter 18 Body Fluids And Circulation helpful? If yes, please comment below. Also please like, and share it with your friends!
NCERT Solutions Class 11 Biology chapter 18 Body Fluids And Circulation- Video
You can also watch the video solutions of NCERT Class11 Biology chapter 18 Body Fluids And Circulation here.
Video – will be available soon.
If you liked the video, please subscribe to our YouTube channel so that you can get more such interesting and useful study resources.
Download NCERT Solutions Class 11 Biology chapter 18 Body Fluids And Circulation In PDF Format
You can also download here the NCERT Solutions Class 11 Biology chapter 18 Body Fluids And Circulation in PDF format.
Click Here to download NCERT Solutions for Class 11 Biology chapter 18 Body Fluids And Circulation
Question & Answer
Q.1: Name the components of the formed elements in the blood and mention one major function of each of them.
Ans : The component elements in the blood are: (1) Erythrocytes: They are the most abundant cells and contain the red pigment called haemoglobin. They carry oxygen to all parts of the body. Red blood cells are produced continuously in some parts of the body such as the marrow of long bones, ribs, etc. There are about 4 — 6 million RBCs per cubic millimetre of blood. (2) Leukocytes Leucocytes are colourless cells. These cells do not contain haemoglobin. They are the largest cells of the body and are divided into two main categories. (a) Granulocytes These leucocytes have granules in their cytoplasm and include neutrophils, eosinophils, and basophiles. Neutrophils are phagocytic cells that protect the body against various infecting agents. Eosinophils are associated with allergic reactions, while basophiles are involved in inflammatory responses. (b) Agranulocytes Lymphocytes and monocytes are agranulocytes. Lymphocytes generate immune responses against infecting agents, while monocytes are phagocytic in nature. (3) Platelets Platelets are small irregular bodies present in blood. They contain essential chemicals that help in clotting. The main function of platelets is to promote clotting.
Q.2: What is the importance of plasma proteins?
Ans : Plasma is the colourless fluid of blood which helps in the transport of food, C02, waste products, and salts. It constitutes about 55% of blood. About 6.8% of the plasma is constituted by proteins such as fibrinogens, globulins, and albumins. Fibrinogen is a plasma glycoprotein synthesised by the liver. It plays a role in the clotting of blood. Globulin is a major protein of the plasma. It protects the body against infecting agents. Albumin is a major protein of the plasma. It helps in maintaining the fluid volume within the vascular space.
Q.3: Why do we consider blood as a connective tissue?
Ans : Connective tissues have cells scattered throughout an extra-cellular matrix. They connect different body systems. Blood is considered as a type of connective tissue because of two reasons. (i) Like the other connective tissues, blood is mesodermal in origin. (ii) It connects the body systems, transports oxygen and nutrients to all the parts of the body, and removes the waste products. Blood has an extra-cellular matrix called plasma, with red blood cells, white blood cells, and platelets floating in it.
Q.4: What is meant by double circulation? What is its significance?
Ans : Double circulation is a process during which blood passes twice through the heart during one complete cycle. This type of circulation is found in amphibians, reptiles, birds, and mammals. However, it is more prominent in birds and mammals as in them the heart is completely divided into four chambers — the right atrium, the right ventricle, the left atrium, and the left ventricle. The movement of blood in an organism is divided into two parts: (i) Systemic circulation (ii) Pulmonary circulation Systemic circulation involves the movement of oxygenated blood from the left ventricle of the heart to the aorta. It is then carried by blood through a network of arteries, arterioles, and capillaries to the tissues. From the tissues, the deoxygenated blood is collected by the venules, veins, and vena cava, and is emptied into the left auricle. Pulmonary circulation involves the movement of deoxygenated blood from the right ventricle to the ulmon arte which then carries blood to the lungs for oxygenation. From the lungs, the oxygenated blood is carried by the pulmonary veins into the left atrium. Hence, in double circulation, blood has to pass alternately through the lungs and the tissues. Significance of double circulation: The separation of oxygenated and deoxygenated blood allows a more efficient supply of oxygen to the body cells. Blood is circulated to the body tissues through systemic circulation and to the lungs through pulmonary circulation.
Q.5: Write the differences between: (a) Blood and Lymph (b) Open and Closed system of circulation (c) Systole and Diastole (d) P-wave and T-wave
Ans : (a) Blood and Lymph (b) Open and Closed system of circulation (c) Systole and Diastole (d) P-wave and T-wave
NCERT / CBSE Book for Class 11 Biology
You can download the NCERT Book for Class 11 Biology in PDF format for free. Otherwise you can also buy it easily online.
- Click here for NCERT Book for Class 11 Biology
- Click here to buy NCERT Book for Class 11 Biology
All NCERT Solutions Class 11
- NCERT Solutions for Class 11 Accountancy
- NCERT Solutions for Class 11 Biology
- NCERT Solutions for Class 11 Chemistry
- NCERT Solutions for Class 11 Maths
- NCERT Solutions for Class 11 Economics
- NCERT Solutions for Class 11 History
- NCERT Solutions for Class 11 Geography
- NCERT Solutions for Class 11 Political Science
- NCERT Solutions for Class 11 Sociology
- NCERT Solutions for Class 11 Psychology
- NCERT Solutions for Class 11 English
- NCERT Solutions for Class 11 Hindi
- NCERT Solutions for Class 11 Physics
- NCERT Solutions for Class 11 Business Studies
- NCERT Solutions for Class 11 Statistics
All NCERT Solutions
You can also check out NCERT Solutions of other classes here. Click on the class number below to go to relevant NCERT Solutions of Class 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12.
|Class 1||Class 2||Class 3|
|Class 4||Class 5||Class 6|
|Class 7||Class 8||Class 9|
|Class 10||Class 11||Class 12|
Download the NCERT Solutions app for quick access to NCERT Solutions Class 11 Biology Chapter 18 Body Fluids And Circulation. It will help you stay updated with relevant study material to help you top your class!
To get fastest exam alerts and government job alerts in India, join our Telegram channel.