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Question
The chief function of lymph nodes is to
Options
produce WBCs
produce hormones
destroy old RBCs
destroy pathogens
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Solution
destroy pathogens
RELATED QUESTIONS
Describe the function of the heart.
Name the following:
Any one vein which starts from an organ and ends in another organ besides the heart
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 |
what is Lymph nodes?
Explain the following:
Why is the closed circulatory system more efficient than the open system?
Put a tick mark (✓) against the correct alternative in the following statement.
The blood tastes saltish due to the dissolved.
Label the diagram given below to show the four main parts of the urinary system and answer the following questions.
- Which organ removes extra salts and water from the blood?
- Where is the urine stored?
- What is the tube through which urine is excreted out of the body?
- What are the tubes that transfer urine from the kidneys to the urinary bladder called?
Name the following :-
The cell organelle where photosynthesis occurs
Which component of the haemoglobin molecule combines with the oxygen molecule to form oxyhaemoglobin?
Name these:
Three components of circulatory system.
