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प्रश्न
Put a tick mark (✓) against the correct alternative in the following statement.
The blood tastes saltish due to the dissolved.
विकल्प
Sodium chloride
Potassium chloride
Ammonium nitrate
Sodium nitrate
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उत्तर
Sodium chloride
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संबंधित प्रश्न
The blood from the heart is transported to all parts of the body by the ______.
Given below is a diagram of a human blood smear.
Study the diagram and answer the questions that follow:
a) Name the components numbered ‘1’ to ‘4’
b) Mention two structural differences between the parts ‘1’ and ‘2’.
c) Name the soluble protein found in part ‘4’ which forms insoluble threads during clotting of blood.
d) What is the average lifespan of the component numbered ‘1’ ?
e) Component numbered ‘1’ do not have certain organelles but are very efficient in their function. Explain
Explain the following:
Why is the closed circulatory system more efficient than the open system?
During surgical operations or during accidents, the patient may be given blood from outside to save his life. What is the technical name of this process? Briefly explain the precautions to be taken in this process.
Multiple choice questions. Tick ( ✓ ) the correct choice:
The four blood groups in humans are
True or false:
Impure blood is received by the right auricle.
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.
Complete the following sentence with appropriate word:
The membranous covering of the heart is _______.
From the following identify the normal haemoglobin count in adult male.
Identify the function of the erythropoietin hormone produced by kidney cells.
