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IB BIOLOGY HL

Question. 1 :

 What is the difference between superior vena cava and inferior vena cava?

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Question. 2 :

 How does the blood pressure inside glomerulus helps in the renal function of nephron?

 
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Question. 3 :

What is the function of Calcium ion in the synaptic space in a nerve cell?

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Question. 4 :

 Where is Keratin find in the human body?

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Question. 5 :

Explain the process of phagocytosis?

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Question. 6 :

Dark pigmentation of the skin is caused by which pigment? What is the mechanism of pigmentation?

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Question. 7 :

What is the fluid that is found in pericardium? What is it’s function?

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Question. 8 :

 How does simple goitre differs from expothalamic goitre?

 
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Question. 9 :

What is the destructive enzyme present in Lysosomes that makes them very dangerous for any cell organelle?

 
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Question. 10 :

 What is agglutination in antibody-antigen reaction?

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Question. 11 :

 What is agglutination in antibody-antigen reaction?

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Question. 12 :

How does the chemical property of heparin make it a natural anticoagulant? 

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