enzymes
(a)Describe the lock and key mechanism of enzymes action. (B)Which properties of enzymes are represented by the lock and key mechanism?
State what is dicoumarol and how does this substance act within the clotting process and also give some examples stating its toxicity?
Explain the embryonic sac? Specify the cells which form the embryonic sac? Specify their ploidies?
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Explain the term clitellum of earthworms and where it is situated?
Explain the phenomenom of plasmolysis and how it can be used to determine osmotic pressure of cell sap
State the functions of spleen? Why total splenectomy, surgical removal of the spleen is compatible with life?
Name the substance from which chromatin is made? Answer: Chromatin is made up of DNA molecules related to proteins termed as histones.
Provide an illustration for electrophilic substitution reaction?
Write some of functions of cartilages in the human body?
What do you mean by haemoglobin F? Explain why does the foetus require different haemoglobin?
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