In Biology, in the past few classes, we’ve been studying and learning about some of the most important biomolecules: carbohydrates, proteins and lipids. Then, we had to confiscate a chart comparing these 3. I worked with Rochi Hartmann and Bauti Olaizola.
|Chemical elements||Carbon, hydrogen and oxygen||Carbon, hydrogen and oxygen||Carbon, nitrogen, hydrogen and oxygen|
|Bonds||Glycosidic bonds||Ester bonds||Peptide Bond|
|Components||Monosaccharides, disaccharides and oligosaccharides||Fatty acids + glycerol||Aminoacids|
|Solubility||All solubles except from oligosaccharides that are not soluble||Insoluble||Some are soluble (ex: haemoglobin) and others are not (ex: keratin)|
|Functions||Provide energy to respire, regulate blood glucose and use proteins in other beneficial ways||Act as insulators, a source of energy and also are used as storage for energy||Help cell growth and makes new ones. It’s a source of energy. Proteins also repair tissues and produce enzymes|
|Chemical Tests||Benedict solution. We have to test for reducing sugars. We carry out this test by adding the benedict reagent to a food sample and then heat it up. If sugars are present then an orange/red colour will appear.||Ethanol emulsion. We first chop the food sample and put it into a test tube. We then add ethanol and shake it up. If a milky emulsion appears at the top of the mixture, then lipids are present.||Biuret Solution. We add some drops of the biuret reagent to our food sample and if a purple color appears then proteins are present, if not the mixture will remain the same.|
|Sources||Bread, sugar, pasta||Oil, avocado and butter||Egg, meat and soya|
We also had to search for a definition for HYDROLYSIS and we came up with this:
Definition: Hydrolysis is the break-down of a component because of its reaction to water.
– Hydrolysis is the opposite of condensation. In the last one, two molecules join together into a larger one and eject a water molecule. Hydrolysis adds water to break down, whereas condensation builds up by removing water.