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प्रश्न
Differentiate between:
Red blood cells and White blood cells
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उत्तर
| Red blood cells | White blood cells. |
| These are minute biconcave disc like structures, flat in centre, thick and round at the periphery and nuclei are absent in mature RBCs. | These collect blood from different organs of the body. |
| These contain a respiratory pigment haemoglobin. | Haemoglobin is not present. |
| RBCs help in the transport of oxygen and CO2. | WBCs help in the protection of the body against infections from the germs. |
| The number of RBCs in an adult male is 5 million per cu. millimeter. | Their number is usually about 4000-8000 per cubic millimeter. |
| Their average life span is about 120 days. | Their average life span is about two weeks. |
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संबंधित प्रश्न
Explain Diapedesis.
With which human organ system (or human systems) is vena cava associated?
The nearest organ to which the heart supplies oxygenated blood is:
Name the following:
The phase of the cardiac cycle in which the auricles contract.
Find out my partner.
| Group 'A' | Group 'B' |
| 1. Heart beats | a. 350 ml |
| 2. RBC | b. 7.4 |
| 3. WBC | c. 37∘C |
| 4. Blood donation | d. 72 |
| 5. Normal body Temperature | e. 50-60 lakh/mm3 |
| 6. pH of oxygenated blood | f. 5000-6000 per mm3 |
Production of RBCs occurs in ______.
Why does the left ventricle possess a thicker wall than the right ventricle?
Given below is a schematic representation of the circulatory system in man. Study the same and answer the questions that follow:
(i) Label the parts 1 to 4 indicated in the diagram.
(ii) Give one difference between parts 1 and 2 based on:
(a) their structure
(b) the nature of blood flowing through them.
(iii) What is the specific name of the type of blood circulation that takes place between the heart and the lungs?
(iv) Name the valve found at the beginning of the part labeled 3.
Use your brain power!
How is the air that we inhale purified in our body?
Which of the following is a major part of the plasma?
