Biological molecules (water, carbohydrates, and lipids) 0.0 / 5 ? BiologyBiological moleculesBiological molecules, organic chemistry and biochemistryASOCR Created by: kikaritaeCreated on: 15-04-18 12:21 89731025416 Across 1. diffusion of water through a partially permeable membrane down a water potential gradient. A passive process. (7) 4. a chemical test for the presence of starch using a potassium iodide solution. A colour change to purple/black indicates a positive result. (6, 4) 5. a branched polysaccharide formed from alpha glucose molecules. A chemical energy store in animal cells. (8) Down 2. the pentose monosaccharide present in RNA molecules. (6) 3. a monosaccharide composed of five carbons. (7) 6. a disaccharide made up of a fructose and glucose monosaccharides. (7) 7. an alkaline solution of copper(II)sulfate used in the chemical tests for reducing sugars and non-reducing sugars. A brick-red precipitate indicates a positive result. (9, 7) 8. saccharides (sugars) that donate electrons resulting in the reduction (gain of electrons) of another molecule. (8, 6) 9. non-polar macromolecules containing the elements carbon, hydrogen and oxygen. Commonly known as fats (solid at room temperature) and oils (liquid at room temperature). (6) 10. long chain carboxylic acids used in the formation of triglycerides. (5, 5)
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