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Exchange of Materials

Lesley Coppin

Key words for AQA B3 Exchange of materials

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Across
1.Name of the strong muscle at he base of the lungs
6.Smallest type of blood vesssel
10.The type of pressure used by some breathing aids to force air into the lungs
14.The process of passing Oxygen into the blood and removing Carbon Dioxide
15.The process by which plants show they have lost too much water.
17.Name given to the system that contains the lungs
18.The large cavity that holds your digestive system
20.Muscles between the ribs
21.This maintains a steep diffusion gradient in the lungs
Down
2.These cells open and close the stomata
3.The type of cell that increases the uptake of water from the soil
4.Movement of materials against a diffusion gradient
5.The movement of water through the plant
7.large thin area that allows materials to pass through it
8.Getting air in and out of your lungs
9.An iron lung creates this to suck air into the lungs
11.The solid part of a solution
12.The process by which plants lose water through the stomata
13.The type of pressure created to a vacuum
16.The diffusion of water
18.Small sacs in the lungs
19.The finger like projections lining the small intestines

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