SCIENCE BEHIND THE SCENE

By: Marissa Street

Introducing Science To Kids

Cells Cells are a wonderful and mysterious things In France, as well as in several other countries,

the cell concept is introduced at school by two juxtaposed drawings, a plant cell and an animal cell. After indicating the didactic obstacles associated with this presentation, this paper focuses on the reasons underlying the persistence of these two prototypes, through three complementary interpretations: Today, besides these traditional animal and plant cell prototypes, a general “egg-cell model” is used increasingly to introduce and develop the cell concept.

Animal Cell

The Nucleus

the central and most important part of an object, movement, or group, forming the basis for its activity and growth.

The structure of the neutron-rich carbon nucleus ^{16}C is described by introducing a new microscopic shell model of no-core type. The model space is composed of the 0s, 0p, 1s0d, and 1p0f shells. The effective interaction is microscopically derived from the CD-Bonn potential and the Coulomb force through a unitary transformation theory. 

Bill Nye

What Are The Importance Of Cells?

Everything is made of cells. That is every single living and non-living thing. You may know of someone who has been ill with a disease or

disorder such as meningitis, malaria, diabetes, a type of cancer, cystic fibrosis, or Alzheimer’s disease. All these diseases and disorders are caused by problems at a cell or molecular level. Physical damage such as a burn or broken bone also causes damage at cell level.

Bone tissue is continuously remodeled by bone-forming osteoblasts and bone-resorbing osteoclasts, in processes tightly regulated by hormones, cytokines and growth factors… The interaction between CD47 and SIRPα is important for, amongst other processes, the fusion of macrophages into giant cells, which are closely related to osteoclasts. The aim of the present study was to gain knowledge about the role of CD47–SIRPα interaction and resultant downstream signaling pathways in bone cell differentiation, formation and function.

Cells Process

Citation

Clément, P. (2007). Introducing the Cell Concept with both Animal and Plant Cells: A Historical and Didactic Approach. Science & Education, 16(3-5), 423-440. doi:10.1007/s11191-006-9029-7

Fujii, S. S., Mizusaki, T. T., Otsuka, T. T., Sebe, T. T., & Arima, A. A. (2006). Microscopic shell-model description of the exotic nucleus ^{16}C. doi:10.1016/j.physletb.2007.04.067

Koskinen, C. (2014). CD47–SIRPα : an interaction of importance for bone cell differentiation.