BIOS1170 Study Guide - Final Guide: Horse Length, Circulatory System, Blood Plasma
1 Sep 2018
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A substance that flows readily e. g. liquids and gases: deforms continuously when a force is applied (easily deformed by a small force, a force is a push or pull. Roles played by fluid in biological systems include: acts as a solvent (dissolving, carries nutrients and waste products, e. g. blood carries nutrients around the body and removes toxic waste products (co2) Define the terms and give the si units and commonly used units for each (i) mass. Mass of an object is the amount of matter in it (ii) volume. Volume of an object is the space it occupies. Si unit = m3: millilitre = ml, decilitre = dl, litre = l, centimetre cubed = cm3 (or cubic centimetre = cc) 1 m3 = 1,000,000 cm3 (100 x 100 x100) (iii) density. Density tells us how light or heavy a substance is: e. g. paper has a lower density (lighter) than steel (heavier)
