Explain how oxygen in the capillaries reaches the cells in the eye. ....................................................................................................................................... . ....................................................................................................................................... . ....................................................................................................................................... . ....................................................................................................................................... . .................................................................................................................................

Biology

IGCSE&ALevel

CAIE

Exam No：0610_s21_qp_42 Year：2021 Question No：1(c)(iii)

Answer:

any two from:
diffusion (across cell membranes) ;
down concentration gradient / AW ;
passive process / (use of) kinetic energy / random movement of
molecules ;
through a thin capillary wall ;

Knowledge points:

9.4.8 Describe the transfer of materials between capillaries and tissue fluid (details of the roles of water potential and hydrostatic pressure are not required)

Answer:

Knowledge points:

Solution:

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