2019 Paper 1 Video Solutions - A/L Biology: Introduction Topics
Introduction
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Solutions To GCE A/L 2019
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1ST YEAR MEDICAL STUDENT IN THE FACULTY OF MEDECINE AND BIOMEDICAL SCIENCES OF THE UNIVERSITY OF YAOUNDE 1

1ST YEAR MEDICAL STUDENT IN THE FACULTY OF MEDECINE AND BIOMEDICAL SCIENCES OF THE UNIVERSITY OF YAOUNDE 1
A good respiratory surface should be moist inorder for respiratory gases to dissolve in it
It should be highly vascularised so that the respiratory gases should be distributed all round the body
It should have a thin membrane to reduce the diffusion distance . This is because rate of diffusion is invesely propôrtional to distance
a)State the characteristics of a respiratory surface