Q3 of 95 Page 83

Differentiate between members of each of the following pairs with reference to phrases in brackets:

(a) Antibodies and antibiotics (Source)


(b) RBC and WBC (Structure)


(c) Serum and vaccine (Composition)

(a)












Antibodies



Antibiotics



Antibodies are produced by lymphocytes which are a type of white blood cells.



Antibiotics are produced by certain bacteria & fungi.



(b)




















White Blood Cells



Red Blood Cells



a) White blood cells have a nucleus.



a) Red blood cells do not contain a nucleus.



b) White blood cells do not contain haemoglobin.



b) Red blood cells contain haemoglobin.



c) White blood cells are irregular in shape with lots of extensions.



c) Red blood cells are circular and biconcave in shape.



(c)












Serum



Vaccine



The serum is the blood plasma which does not contain protein fibrinogen and the blood corpuscles.



The vaccine is a preparation containing dead, weakened or living germs or germ substances of a particular disease or diseases, which is introduced into the body of a healthy person for developing resistance to that particular disease or diseases.



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