Genes and health- snab as level revision. 0.0 / 5 ? BiologyTopic 2: Genes and HealthASOther Created by: JustynaCreated on: 03-11-13 13:17 What continuously removes the mucus from lungs? Cilia 1 of 9 What are epithelial cells? one or more layers of cells sitting in a basement membrane, made of protein fibres. 2 of 9 What are pathogens? microorganisms being trapped in the mucus and causing illnesses 3 of 9 How is surface area to volume ratio calculated? by dividing an organism's total surface area by its volume 4 of 9 What are the structures of protein making? Primary structure,secondary structure, tertiary structure,quaternary structure 5 of 9 What is a phospholipid bilayer? all the molecules being arranged so that the hydrophobic tails are inside the bilayer 6 of 9 Which transport across a membrane needs energy and moves up a concentration gradient? Active transport 7 of 9 How are large molecules or particles transported across cell surface membranes? by exocytosis and endocytosis 8 of 9 is facilitated diffusion passive? yes 9 of 9
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