HL 2 Biology

6.2A: THE TRANSPORT SYSTEM

DBQ: 225, #1

1) a (i) I is erythrocyte, II is lymphocyte

(ii) Their size and also the inside structure enables the erythrocyte and lymphocyte to be distinguished.

b) THe II is a lymphocyte where as the III is a phagocyte. This can  be distinguished as the lymphocyte consists of a rounded nucleus in contrast to the phagocyte with many small divided nucleus.

c) i) (7mm*1000)/7µm =1000x

ii) (9mm*1000)/1000= 9µm

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