Class 7 Exam > Class 7 Videos > Summary Video: रक्त और हमारा शरीर
Summary Video: रक्त और हमारा शरीर Video Lecture - Class 7
FAQs on Summary Video: रक्त और हमारा शरीर Video Lecture - Class 7
| 1. What is the function of blood in our body? |  |
Ans. Blood performs various functions in our body like supplying oxygen and nutrients to the body cells, carrying waste materials away from the cells, regulating body temperature, fighting infections, and maintaining the pH balance of the body.
| 2. What is the composition of blood? | |
Ans. Blood is composed of plasma, red blood cells, white blood cells, and platelets. Plasma is a yellowish liquid that carries dissolved nutrients, waste products, and hormones. Red blood cells carry oxygen to the body cells while white blood cells fight infections. Platelets help in blood clotting.
| 3. How is blood circulated in our body? | |
Ans. Blood is circulated in our body through a network of blood vessels that includes arteries, veins, and capillaries. The heart pumps blood into the arteries, which carry oxygen-rich blood to the body cells. The veins carry oxygen-poor blood back to the heart, which pumps it to the lungs for oxygenation.
| 4. What is the role of hemoglobin in red blood cells? | |
Ans. Hemoglobin is a protein present in red blood cells that helps in carrying oxygen from the lungs to the body cells. It binds with oxygen in the lungs and releases it in the body cells where it is needed for various metabolic activities.
| 5. How can we maintain the health of our blood? | |
Ans. We can maintain the health of our blood by consuming a healthy and balanced diet rich in iron, vitamins, and minerals, staying hydrated, exercising regularly, avoiding smoking and excessive alcohol consumption, and getting regular check-ups to detect any blood-related disorders early.
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Summary Video: रक्त और हमारा शरीर for Class 72024 is part of Class 7 preparation. The notes and questions for Summary Video: रक्त और हमारा शरीर
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