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प्रश्न
Name the type of T-lymphocyte which secretes perforins.
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उत्तर
Killer-T cells secrete perforins.
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संबंधित प्रश्न
What is lymphatic system? What are its function?
A liquid X of colour Y circulates in the human body only in one direction: from body tissues to the heart. Among other things, liquid X contains germs from cells and dead cells. The liquid X is cleaned of germs and dead cells by a special type of white blood cells called Z. This cleaned liquid is then put into the blood circulatory system in subclavian veins.
- What is (i) liquid X, and (ii) colour Y?
- What is Z?
- The liquid X is somewhat similar to a component of blood. Name this component.
- Why is liquid X not red?
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:
Some of the liquid surrounding the cells does not pass directly back into the blood but eventually reaches it by another route through vessel X. name the fluid present in vessel X.
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:
State two important functions performed in our body by the fluid present in vessel X.
Differentiate between:
Blood and Lymph.
Distinguish between Blood capillary and lymph capillary
For which of the following reason it is much easier for a small animal to run uphill than for a large animal?
All of the following are the functions of lymph, EXCEPT
Select the INCORRECT statement.
What is the other name of 'tissue fluid'? Write its two functions.
