Plant and animal cells. Cytoplasm. Jelly-like substance, where chemical reactions happen. In plant cells there's a thin lining, whereas in animal cells most of the cell is cytoplasm. Plant and animal cells. Nucleus. Controls what happens inside the cell.Carries genetic information. In exams don't call the nucleus the 'brain' of the cell.ytoplasm. Jelly-like substance, where chemical reactions happen. In plant cells there's a thin lining, whereas in animal cells most of the cell is cytoplasm. Plant and animal cells. Nucleus. Controls what happens inside the cell. Carries genetic information. In exams don't call the nucleus the 'brain' of the cell.
Iron is rarely found in its pure form on the surface of the earth; as it tends to get oxidized when it comes in contact with atmospheric oxygen. For this reason, most of its ores are in the form of iron oxides.
Pure iron is metallic in color, it absorbs visible light only very weakly due to d-d transitions which are forbidden by quantum mechanical selection rules for electronic trans â¦ itions. 1  A List of Foods That Have High Concentrations of Iron Iron deficiency is one of the most common of the human nutritional deficiencies.hen you get a set of Ping irons custom fit, the use your height and where on the sole the club strikes the ground to give you a colour code. This colour is usually a little d â¦ ot on the club. For example, black is standard, blue is 0.75 degrees upright, and gold is 4 degrees flat.