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प्रश्न
The cells in our blood which destroy disease-causing germs are:
विकल्प
Platelets
Skin cells
RBCs
WBCs
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उत्तर
WBCs
White blood cells or WBCs destroy the disease-causing germs. They are like soldiers that protect the body from various infections.
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संबंधित प्रश्न
Explain Pulse
Give appropriate biological or technical terms for the following :
The complex consisting of a DNA strand and a core of histones
Match the statements in Column A with those in Column B:
Note the relationship between the first two words and suggest a suitable word/words for the fourth place:
Coronary artery : Heart :: Hepatic artery : ______
Match the items in Column ‘A’ with those in column ‘B’ Rewrite the correct matching pairs.
| Column A | Column B | ||
| (a) | SA Node | (i) | Plasma |
| (b) | Defective haemoglobin in RBC | (ii) | Serum |
| (c) | Muscle fibres located in heart | (iii) | Pacemaker |
| (d) | The liquid squeezed out of blood during clotting | (iv) | Sickle cell anaemia |
| (e) | Never tires, keep on contracting and relaxing | (v) | Purkinje fibres |
| (f) | Cardiac cycle | (vi) | Cardiac muscle |
| (g) | Liquid part of the blood without corpuscles | (vii) | 0·85 sec |
How do you account for the following difference?
The walls of the right ventricle are thicker than those of the right auricle.
Give reason for the following:
The arteries are deep seated in the body
Find the odd one out.
Why does the left ventricle possess a thicker wall than the right ventricle?
Fill in the blanks with suitable words given below:
The ______ artery takes the blood from the ventricles to the lungs.
In which organ of our body does blood get oxygenated?
Multiple choice questions. Tick ( ✓ ) the correct choice:
The blood vessels in which blood goes away from the heart to different body parts are
True or false:
People with blood group ‘O’ are called universal recipients
What are seen as greenish blue lines in our hands and legs?
Name the Following
The blood plasma from which fibrinogen has been removed.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
The walls of auricles are thicker than those of ventricles.
Analogy
Arteries : Carry blood from the heart:: _________ :carry blood to the heart.
The nodal tissue located in the lower left corner of right atrium is ______.
Mention the phase of heart beat in which both the atrio-ventricular valves are closed.
