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Chapters
2: Biological Classification
3: Plant Kingdom
4: Animal Kingdom
5: Morphology of Flowering Plants
6: Anatomy of Flowering Plants
7: Structural Organisation in Animals
8: Cell : the Unit of Life
9: Biomolecules
10: Cell Cycle and Cell Division
11: Transport in Plants
12: Mineral Nutrition
13: Photosynthesis in Higher Plants
14: Respiration in Plants
15: Plant Growth and Development
16: Digestion and Absorption
17: Breathing and Exchange of Gases
▶ 18: Body Fluids and Circulation
19: Excretory Products and Their Elimination
20: Locomotion and Movement
21: Neural Control and Coordination
22: Chemical Coordination and Integration
![NCERT Exemplar solutions for Biology [English] Class 11 chapter 18 - Body Fluids and Circulation - Shaalaa.com](/images/biology-english-class-11_6:5f2b1b2038084cf381bfa42c826a928c.jpg "NCERT Exemplar solutions for Biology [English] Class 11 chapter 18 - Body Fluids and Circulation")
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Solutions for Chapter 18: Body Fluids and Circulation
Below listed, you can find solutions for Chapter 18 of CBSE NCERT Exemplar for Biology [English] Class 11.
NCERT Exemplar solutions for Biology [English] Class 11 18 Body Fluids and Circulation Exercises [Pages 101 - 107]
MULTIPLE CHOICE QUESTIONS
Which of the following cells does not exhibit phagocytotic activity?
Monocyte
Neutrophil
Basophil
Macrophage
One of the common symptoms observed in people infected with Dengue fever is ______.
Significant decrease in RBC count
Significant decrease in WBC count
Significant decrease in platelets count
Significant increase in platelets count
Which among the followings is correct during each cardiac cycle?
The volume of blood pumped out by the Rt and Lt ventricles is same
The volume of blood pumped out by the Rt and Lt ventricles is different
The volume of blood received by each atrium is different
The volume of blood received by the aorta and pulmonary artery is different
Cardiac activity could be moderated by the autonomous neural system. Tick the correct answer:
The parasympathetic system stimulates the heart rate and stroke volume.
The sympathetic system stimulates the heart rate and stroke volume.
The parasympathetic system decreases the heart rate but increases stroke volume.
The sympathetic system decreases the heart rate but increases stroke volume.
Mark the pair of substances among the following which is essential for coagulation of blood.
Heparin and calcium ions
Calcium ions and platelet factors
Oxalates and citrates
Platelet factors and heparin
ECG depicts the depolarisation and repolarisation processes during the cardiac cycle. In the ECG of a normal healthy individual one of the following waves is not represented.
Depolarisation of atria
Repolarisation of atria
Depolarisation of ventricles
Repolarisation of ventricles
Which one of the following types of cells lack nucleus in humans?
Erythrocytes
Neutrophils
Eosinophils
Monocytes
Which one of the following blood cells is involved in antibody production?
B-Lymphocytes
T-Lymphocytes
RBC
Neutrophils
The cardiac impulse is initiated and conducted further upto ventricle. The correct sequence of conduction of impulse is ______.
S A Node, A V Node, Purkinje fiber, A V Bundle
S A Node, Purkinje fiber, A V Node, A V Bundle
S A Node, A V Node, A V Bundle, Purkinje fiber
S A Node, Purkinje fiber, A V Bundle, A V Node
The cells involved in inflammatory reactions are ______.
Basophils
Neutrophils
Eosinophils
Lymphocytes
The second heart sound (dubb) is associated with the closure of ______.
Tricuspid valve
Semilunar valves
Bicuspid valve
Tricuspid and bicuspid valves
Which of the following correctly explains a phase/ event in cardiac cycle in a standard electrocardiogram?
QRS complex indicates atrial contraction.
QRS complex indicates ventricular contraction.
Time between S and T represents atrial systole.
P-wave indicates beginning of ventricular contraction.
Which of the following statements is incorrect?
A person of ‘O’ blood group has anti ‘A’ and anti ‘B’ antibodies in his blood plasma.
A person of ‘B’ blood group can’t donate blood to a person of ‘A’ blood group.
Blood group is designated on the basis of the presence of antibodies in the blood plasma.
A person of AB blood group is universal recipient.
What would be the cardiac output of a person having 72 heart beats per minute and a stroke volume of 50 ml?
360 mL
3600 mL
7200 mL
5000 mL
Match the terms given under Column ‘A’ with their functions given under Column ‘B’ and select the answer from the options given below:
| Column I | Column II |
| A. Lymphatic System | i. Carries oxygenated blood |
| B. Pulmonary vein | ii. Immune Response |
| C. Thrombocytes | iii. To drain back the tissue fluid to the circulatory system |
| D. Lymphocytes | iv. Coagulation of blood |
A - ii, B - i, C - iii, D - iv
A - iii, B - i, C - iv, D - ii
A - iii, B - i, C - iii, D - iv
A - ii, B - i, C - iii, D - iv
Read the following statements and choose the correct option
Statement 1: Atria receive blood from all parts of the body which subsequently flows to ventricles.
Statement 2: Action potential generated at sino-atrial node passes from atria to ventricles.
Action mentioned in Statement 1 is dependent on action mentioned in Statement 2
Action mentioned in Statement 2 is dependent on action mentioned in Statement 1
Action mentioned in Statements 1 and 2 are independent of each other
Action mentioned in Statements 1 and 2 are synchronous
VERY SHORT ANSWER TYPE QUESTIONS
Name the blood component which is viscous and straw-coloured fluid.
Complete the missing word in the statement given below:
Plasma without ______ factors is called serum.
Complete the missing word in the statement given below:
______ and monocytes are phagocytic cells.
Complete the missing word in the statement given below:
Eosinophils are associated with ______ reactions.
Complete the missing word in the statement given below:
______ ions play a significant role in clotting.
Complete the missing word in the statement given below:
One can determine the heart beat rate by counting the number of ______ in an ECG.
Given below is the diagrammatic representation of a standard ECG. Label its different peaks.
Name the vascular connection that exists between the digestive tract and liver.
Given below are the abnormal conditions related to blood circulation. Name the disorders.
Acute chest pain due to failure of O2 supply to heart muscles
Given below are the abnormal conditions related to blood circulation. Name the disorders.
Increased systolic pressure
Which coronary artery diseases is caused due to narrowing of the lumen of arteries?
Define the following terms and give their location?
Purkinje fibre
Define the following terms and give their location?
Bundle of His
State the functions of the following in blood.
Fibrinogen
State the functions of the following in blood
Globulin
State the functions of the following in blood.
Neutrophils
State the functions of the following in blood.
Lymphocytes
What physiological circumstances lead to erythroblastosis foetalis?
Explain the consequences of a situation in which blood does not coagulate.
What is the significance of time gap in the passage of action potential from sino-atrial node to the ventricle?
How will you interpret an electrocardiogram (ECG) in which time taken in QRS complex is higher.
SHORT ANSWER TYPE QUESTIONS
The walls of ventricles are much thicker than atria. Explain.
Distinguish between Blood and lymph.
Differentiate between basophils and eosinophils
Differentiate between tricuspid and bicuspid valve
Briefly describe the following:
Anaemia
Briefly describe the following:
Angina Pectoris
Briefly describe the following:
Atherosclerosis
Briefly describe the following:
Hypertension
Briefly describe the following:
Heart failure
Briefly describe the following:
Erythroblastosis foetalis
Explain the advantage of the complete partition of ventricle among birds and mammals and hence leading to double circulation.
What is the significance of hepatic portal system in the circulatory system?
Explain the functional significance of lymphatic system?
Write the features that distinguish between the two.
Plasma and Serum
Write the features that distinguish between the two.
Open and Closed circulatory system
Write the features that distinguish between the two.
Sino-atrial node and Atrio-ventricular node
Thrombocytes are essential for coagulation of blood. Comment.
Answer the following:
Name the major site where RBCs are formed.
Answer the following:
Which part of heart is responsible for initating and maintaining its rhythmic activity?
Answer the following:
What is specific in the heart of crocodiles among reptilians?
LONG ANSWER TYPE QUESTIONS
Explain Rh-incompatibility in humans.
Describe the events in cardiac cycle. Explain “double circulation”.
Explain different types of blood groups and donor compatibility by making a table.
Write short note on the following:
Hypertension
Write short note on the following:
Coronary Artery Disease
In the diagrammatic presentation of heart given below, mark and label, SAN, AVN, AV bundles, bundle of His and Purkinje fibres.
Solutions for 18: Body Fluids and Circulation
NCERT Exemplar solutions for Biology [English] Class 11 chapter 18 - Body Fluids and Circulation
Shaalaa.com has the CBSE Mathematics Biology [English] Class 11 CBSE solutions in a manner that help students grasp basic concepts better and faster. The detailed, step-by-step solutions will help you understand the concepts better and clarify any confusion. NCERT Exemplar solutions for Mathematics Biology [English] Class 11 CBSE 18 (Body Fluids and Circulation) include all questions with answers and detailed explanations. This will clear students' doubts about questions and improve their application skills while preparing for board exams.
Further, we at Shaalaa.com provide such solutions so students can prepare for written exams. NCERT Exemplar textbook solutions can be a core help for self-study and provide excellent self-help guidance for students.
Concepts covered in Biology [English] Class 11 chapter 18 Body Fluids and Circulation are Introduction of Body Fluids and Circulation, Composition of Blood: Plasma (The Liquid Portion of Blood), Blood Transfusion and Blood Groups (ABO and Rh system), Function of Platelets - Clotting of Blood (Coagulation), Lymph and Lymphatic System, Human Circulatory System, Cardiac Cycle, Electrocardiograph (ECG), Regulation of Cardiac Activity, Disorders of Circulatory System, Cardiac Output, Compatibility of Antigen, Body Fluids and Circulation (Questions), Types of Closed Circulation.
Using NCERT Exemplar Biology [English] Class 11 solutions Body Fluids and Circulation exercise by students is an easy way to prepare for the exams, as they involve solutions arranged chapter-wise and also page-wise. The questions involved in NCERT Exemplar Solutions are essential questions that can be asked in the final exam. Maximum CBSE Biology [English] Class 11 students prefer NCERT Exemplar Textbook Solutions to score more in exams.
Get the free view of Chapter 18, Body Fluids and Circulation Biology [English] Class 11 additional questions for Mathematics Biology [English] Class 11 CBSE, and you can use Shaalaa.com to keep it handy for your exam preparation.
