How is the lymphatic system a support to blood circulation?
Answer and explanation
Correct answer: It helps return extra tissue fluid to the blood
Some fluid leaves blood capillaries and enters the spaces around cells. If this excess tissue fluid were not collected, swelling would occur and blood volume would gradually fall. Lymphatic vessels collect the fluid as lymph and return it to the bloodstream; lymph nodes also contribute to defence. Hence option A correctly describes its supportive role. The remaining options assign impossible digestive, respiratory, or plant functions.
Frequently asked questions
What is the correct answer to this question?
It helps return extra tissue fluid to the blood
Why is this the correct answer?
Some fluid leaves blood capillaries and enters the spaces around cells. If this excess tissue fluid were not collected, swelling would occur and blood volume would gradually fall. Lymphatic vessels collect the fluid as lymph and return it to the bloodstream; lymph nodes also contribute to defence. Hence option A correctly describes its supportive role. The remaining options assign impossible digestive, respiratory, or plant functions.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: World of Living. Topic: Life Processes.
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