Write the differences between:
(a) Bloo | Class 11 Biology Chapter Body Fluids and Circulation, Body Fluids and Circulation NCERT Solutions
Current NCERT chapter
Academic session 2026-27,
Chapter 15 in the current curriculum.
Welcome to the NCERT Solutions for Class 11 Biology - Chapter Body Fluids and Circulation. This page offers a step-by-step solution to the specific question from Exercise 1, Question 7:
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
.
With detailed answers and explanations for each chapter, students can strengthen their understanding and prepare confidently for exams. Ideal for CBSE and other board students, this resource will simplify your study experience.
Question 7: 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
Answer:
(a) Blood and lymph
|
|
Blood
|
|
Lymph
|
|
1.
|
Blood is a red-coloured fluid that contains RBCs.
|
1.
|
Lymph is a colourless fluid that lacks RBCs.
|
|
2.
|
It contains plasma, RBCs, WBCs, and platelets. It also contains proteins.
|
2.
|
It contains plasma and lesser number of WBCs and platelets. It lacks proteins.
|
|
3.
|
Blood transports nutrients and oxygen from one organ to another.
|
3.
|
Lymph plays a role in the defensive system of the body. It is a part of the immune system.
|
(b) Open and closed systems of circulation
|
|
Open system of circulation
|
|
Closed system of circulation
|
|
1.
|
In this system, blood is pumped by the heart, through large vessels, into body cavities called sinuses.
|
1.
|
In this system, blood is pumped by the heart, through a closed network of vessels.
|
|
2.
|
The body tissues are in direct contact with blood.
|
2.
|
The body tissues are not in direct contact with blood.
|
|
3.
|
Blood flows at low pressure. Hence, it is a slower and less efficient system of circulation.
|
3.
|
Blood flows at high pressure. Hence, it is a faster and more efficient system of circulation.
|
|
4.
|
The flow of blood is not regulated through the tissues and organs.
|
4.
|
The flow of blood can be regulated by valves.
|
|
5.
|
This system is present in arthropods and molluscs except cephalopods
|
5.
|
This system is present in annelids, echinoderms, and vertebrates.
|
(c) Systole and diastole
|
|
Systole
|
|
Diastole
|
|
1.
|
It is the contraction of the heart chambers to drive blood into the aorta and the pulmonary artery.
|
1.
|
It is the relaxation of the heart chambers between two contractions. During diastole, the chambers are filled with blood.
|
|
2.
|
Systole decreases the volume of the heart chambers and forces the blood out of them.
|
2.
|
Diastole brings the heart chambers back into their original sizes to receive more blood.
|
(d) P-wave and T-wave
|
|
P-wave
|
|
T-wave
|
|
1.
|
In an electrocardiogram (ECG), the P-wave indicates the activation of the SA node.
|
1.
|
In an electrocardiogram (ECG), the T-wave represents ventricular relaxation.
|
|
2.
|
During this phase, the impulse of contraction is generated by the SA node, causing atrial depolarisation.
|
2.
|
During this phase, the ventricles relax and return to their normal state.
|
|
3.
|
It is of atrial origin.
|
3.
|
It is of ventricular origin.
|
-
Other Questions of Chapter Body Fluids and Circulation
-
Popular questions of class 11 Biology
-
Recently Viewed Questions of Class 11 Biology
Study Tips for Answering NCERT Questions:
NCERT questions are designed to test your understanding of the concepts and theories discussed in the chapter. Here are some tips to help you answer NCERT questions effectively:
- Read the question carefully and focus on the core concept being asked.
- Reference examples and data from the chapter when answering questions about Body Fluids and Circulation.
- Review previous year question papers to get an idea of how such questions may be framed in exams.
- Practice answering questions within the time limit to improve your speed and accuracy.
- Discuss your answers with your teachers or peers to get feedback and improve your understanding.
All businesses are gathering information on customers, products, employees, and expenditures, and someone must make decisions based on the data. That individual is the data analyst. Unlike many career changers imagine, the job is open to a broader cross-section of the population than a typical career change. A lot of working analysts trained in commerce, … Read more
Read More
Are often purchased, talked and planned as being a replacement for another. They aren’t. One safeguards your family’s income in your absence and the other safeguards your family’s savings in the event that someone becomes ill. An examination of what they do, what they do not do, and why they are missing it when one … Read more
Read More
Pay upfront, or pay off less and over time? The truth depends on four factors most consumers will never compare at the same time: the interest rate on the house loan, the interest rate on the savings account, the rate of home price appreciation, and the cost of renting the home until you actually buy … Read more
Read More
Thirty is when the question starts to get raised and you’re able to do something because you know you have the experience—you know you have the responsibility. Here are some ways to consider the choice based on a realistic assessment without idealizing either aspect. Restlessness is one of those things that appears in your early … Read more
Read More
Welcome to the NCERT Solutions for Class 11 Biology - Chapter . This page offers a step-by-step solution to the specific question from Excercise 1 , Question 7: Write the differences between:
(a) Blood and Lymph
(b) Open and Closed system of circulation
(c) ....
Comments
It helps me a lot