Zinc Critical Thinkings Samples For Students

Do blueberries and strawberries have similar levels of anthocyanins? How could you find out?

No, blueberries and strawberries have different levels of anthocyanins because anthocyanins are responsible for the colors associated with the fruits. (Berries and the Brain, n.d.) Since they have different colors, they have different levels of anthocyanins. Levels of anthocyanins in different fruits can be determined by chromatography or by using a spectrophotometer. The easiest way would be to separate the anthocyanins from other pigments in the fruits using different solvents, and then chromatographing the extracts. Finally, the amount and wavelength of light they absorb can be determined using a calorimeter which would help measure a number of anthocyanins in ...

The Role of Diet in Human Health

The human immune system is highly developed and complex to ensure that it fights with a wide range of microorganisms, viruses, bacteria, particles and other foreign objects that may affect the body in any way. The system is made up of various components within the body, and all are in some relation with each other to ensure that there is an effective immunity against any foreign body capable of causing some pathological conditions in the body. The major components of the human immune system include a group of immune cells such as the T-lymphocytes, B-lymphocytes, natural killer cells, memory cells, and ...

Until today, over 2000 minerals have been discovered, and constantly on a daily basis, new minerals are discovered. Minerals just like matter is made up of atoms of elements arranged in a particular way together with a definite chemical composition. Notably, minerals are aggregates of nearly all rocks found on the earth’s crust. Geologists define minerals as inorganic materials on and in the earth’s crust with a specific chemical composition. Most minerals are always naturally occurring and it is worth noting that nearly all the minerals contain crystals. This is attributed to the fact that mineral particles are usually arranged in a ...