Class 7 Transportation in Animals and Plants Notes for exams

Read and download the Class 7 Transportation in Animals and Plants Notes for exams. Designed for 2025-26, this advanced study material provides Class 7 Science students with detailed revision notes, sure-shot questions, and detailed answers. Prepared by expert teachers and they follow the latest CBSE, NCERT, and KVS guidelines to ensure you get best scores.

Advanced Study Material for Class 7 Science Chapter 11 Transportation in Animals and Plants

To achieve a high score in Science, students must go beyond standard textbooks. This Class 7 Chapter 11 Transportation in Animals and Plants study material includes conceptual summaries and solved practice questions to improve you understanding.

Class 7 Science Chapter 11 Transportation in Animals and Plants Notes and Questions

 

Class 7 Transportation in Animals and Plants Notes for exams. There are many more useful educational material which the students can download in pdf format and use them for studies. Study material like concept maps, important and sure shot question banks, quick to learn flash cards, flow charts, mind maps, teacher notes, important formulas, past examinations question bank, important concepts taught by teachers. Students can download these useful educational material free and use them to get better marks in examinations.  Also refer to other worksheets for the same chapter and other subjects too. Use them for better understanding of the subjects.

HUMAN CIRCULATORY SYSTEM

What is the job of the Circulatory System?

The Circulatory System is responsible for transporting materials throughout the entire body. It transports nutrients, water, and oxygen to your billions of body cells and carries away wastes such as carbon dioxide that body cells produce.It is an amazing highway that travels through your entire body connecting all your body cells.

Parts of the Circulatory System

The circulatory System is divided into three major parts:

1. The Heart

2. The Blood

3. The Blood Vessels

The Heart

The Heart is an amazing organ. The heart beats about 3 BILLION times during an average lifetime. It is a muscle about the size of your fist. The heart is located in the centre of your chest slightly to the left. Its job is to pump your blood and keep the blood moving throughout your body.

The Blood

It consists of fluid part the plasma and solid part consists of three types of cells.

Plasma

· Fluid part of blood which is straw colored

· 90-92%of plasma is water

· Carries carbon dioxide, hormones, waste, digested food, antibodies, some mineral ions, and

enzymes.

Blood Cells

Red Blood Cells are responsible for carrying oxygen. Red Blood Cells pick up oxygen in the lungs and transport it to all the body cells. There are about 4.5-5million red blood cells in one  cubic millimeter of blood. The RBC’s contain an iron containing pigment called hemoglobin.

Hemoglobin carries oxygen. They are biconcave disc shaped and live for 120 days.
 
White Blood Cells help the body fight off germs. White Blood Cells attack and destroy germs when they enter the body. When you have an infection your body will produce more White Blood Cells to help fight an infection. They are amoeboid in shape or may be oval in outline.
Their number is 6,000-10,000 per cubic mm of blood. They survive from few hours to few days. They are called soldiers of the body as they fight disease and provide immunity to the
body.
Platelets are blood cells that help stop bleeding. When we cut ourselves we have broken a blood vessel and the blood leaks out. They help in clotting of blood. There are 250,000 platelets per cubic mm of blood. Their life span is about 25-29 days.
 
The Blood Vessels
 
There are three types of blood vessels in human body
 
1. Arteries
 
2. Capillaries
 
3. Veins
 
Arteries
 
• Carry blood away from the heart (always oxygenated other than the pulmonary artery which goes to the lungs)
 
• Have thick muscular walls
 
• Have small passageways for blood (internal lumen)
 
• Contain blood under high pressure
 
• No valves present and are close to skin
 
Veins
 
• Carry blood to the heart (always de-oxygenated other than pulmonary vein which goes from the lungs to the heart)
 
• Have thin walls
 
• Have larger internal lumen
 
• Contain blood under low pressure
 
• Have valves to prevent blood flowing backwards and are close to skin
 
Capillaries
 
• Found in the muscles and lungs
 
• Microscopic – one cell thick
 
• Very low blood pressure
 
• Where gas exchange takes place. Oxygen passes through the capillary wall and into the tissues, carbon dioxide passes from the tissues into the blood
 
STRUCTURE and FUNCTION OF HUMAN HEART
 
The heart is a muscular organ about the size of a closed fist that functions as the body’s circulatory pump. It takes in deoxygenated blood through the veins and delivers it to the lungs for oxygenation before pumping it into the various arteries (which provide oxygen and nutrients to body tissues by transporting the blood throughout the body). A double-walled sac called the pericardium encases the heart, which serves to protect the heart and anchor it inside the chest. The muscles that make up the human heart are called cardiac muscles.
 
Chambers of the Heart
 
• The heart contains 4 chambers: the right atrium, left atrium, right ventricle, and left ventricle.
 
• The atria are chambers on top, are smaller than the ventricles and have thinner, less muscular walls than the ventricles.
 
• The atria act as receiving chambers for blood, so they are connected to the veins that carry blood to the heart.
 
• The ventricles are the larger, stronger pumping chambers that send blood out of the heart.
The ventricles are connected to the arteries that carry blood away from the heart.
 
• A wall of muscle called the septum separates the two sides of the heart.
 
• Each atria open into the respective ventricle through an aperture or hole which is guarded by a valve. ( Tricuspid and Bicuspid Valves)
 
• The heart pumps oxygenated blood into the main artery called Aorta that leaves the left ventricle.
 
• Aorta carries oxygen rich blood to all organs of the body.
 
• The main vein called Vena Cava brings CO2 rich blood back to the right atrium.
 
• From right atrium blood goes to right ventricle
 
• The contraction of the right ventricle pushes the blood into the pulmonary artery that carries CO2 rich blood to the lungs for oxygenation.
 
• The oxygenated blood from the lungs is brought back to the left atrium by the pulmonary vein.
 
• The oxygenated blood from the left atrium is sent to the left ventricle and then to all parts of the body through the Aorta.
 
• At the base of Aorta and Pulmonary artery semi lunar valves are present that prevent the backflow of blood.
 
• Thus there is double circulation of blood in humans
 
• Between heart and body organs- systemic circulation
 
• Between heart and lungs- pulmonary circulation
 

Please click the link below to download Class 7 Transportation in Animals and Plants Notes for exams.

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CBSE Class 7 Science Chapter 11 Transportation in Animals and Plants Study Material

Students can find all the important study material for Chapter 11 Transportation in Animals and Plants on this page. This collection includes detailed notes, Mind Maps for quick revision, and Sure Shot Questions that will come in your CBSE exams. This material has been strictly prepared on the latest 2026 syllabus for Class 7 Science. Our expert teachers always suggest you to use these tools daily to make your learning easier and faster.

Chapter 11 Transportation in Animals and Plants Expert Notes & Solved Exam Questions

Our teachers have used the latest official NCERT book for Class 7 Science to prepare these study material. We have included previous year examination questions and also step-by-step solutions to help you understand the marking scheme too. After reading the above chapter notes and solved questions also solve the practice problems and then compare your work with our NCERT solutions for Class 7 Science.

Complete Revision for Science

To get the best marks in your Class 7 exams you should use Science Sample Papers along with these chapter notes. Daily practicing with our online MCQ Tests for Chapter 11 Transportation in Animals and Plants will also help you improve your speed and accuracy. All the study material provided on studiestoday.com is free and updated regularly to help Class 7 students stay ahead in their studies and feel confident during their school tests.

What is included in the advanced study material for Class 7 Science Chapter Chapter 11 Transportation in Animals and Plants?

Our advanced study package for Chapter Chapter 11 Transportation in Animals and Plants includes detailed concepts, diagrams, Mind Maps, and explanation of complex topics to ensure Class 7 students learn as per syllabus for 2026 exams.

How do Mind Maps for Science Chapter Chapter 11 Transportation in Animals and Plants help in revision?

The Mind Maps provided for Chapter Chapter 11 Transportation in Animals and Plants act as visual anchors which will help faster recall during high-pressure exams.

Are these Science resources suitable for both classroom teaching and self-study?

Yes, teachers use our Class 7 Science resources for lesson planning as they are in simple language and have lot of solved examples.

Is this advanced study material for Chapter Chapter 11 Transportation in Animals and Plants free to download in PDF?

Yes, You can download the complete, mobile-friendly PDF of the Science Chapter Chapter 11 Transportation in Animals and Plants advanced resources for free.

Does this material cover rationalized content for the 2025-26 CBSE session?

Yes, our subject matter experts have updated the Chapter Chapter 11 Transportation in Animals and Plants material to align with the rationalized NCERT textbooks and have removed deleted topics and added new competency-based questions.