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Question
What is lymph? State two major functions of lymph.
Solution
Lymph is a clear, yellowish, slightly alkaline fluid, containing white blood cells in a liquid that resembles blood plasma.
Functions of lymph:
- It helps in the defensive mechanism of the body by killing the foreign body with the help of lymphocytes and making antibodies.
- It transports nutrients from the tissue cells to the blood, through lymphatic vessels.
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Describe agranulocytes with the help of diagrams.
The diagram below shows part of the capillary bed in an organ of the human body. Some of the blood arriving at the capillaries at points labeled A, moves out into the spaces between the tissue cells. Study the diagram and answer the questions that follow:
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Give reason:
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