In 2002, Jason Padgett was the victim of a brutal attack. The sequelae were a concussion, posttraumatic stress disorder, and a sudden interest in math that just didn't exist before the injury. Bizarre, isn't it? But that's exactly how it happened: While recovering, Padgett simply began to see the world differently.

Biotechnology is the study and development of genetically modified organisms and their use for productive purposes. That is, technology based on biology, being used mainly in agriculture, food science and medicine. The following are some topics on subjects in this area.

Energy release through fermentation Fermentation is an energy release process that occurs without the participation of oxygen (anaerobic process). Fermentation comprises a set of enzymatically controlled reactions through which an organic molecule is degraded into simpler compounds, releasing energy.

Cilliophora - Ciliates; class of protozoa whose representatives move through eyelashes. Kinetochore - See centromere. Cissiparity - Or binary division; asexual reproduction in which unicellular organisms reproduce by simply dividing the cell. Citron - See genes.

DNA controls all cellular activity. It has the "recipe" for the functioning of a cell. Every time a cell divides, the "recipe" must be passed to the daughter cells. The entire "file" containing information about cell functioning needs to be duplicated so that each child cell receives the same kind of information as the parent cell.

You already know that blood carries nutrients, respiratory gases, hormones and metabolism residues. Although the blood appears to be a completely homogeneous red liquid, under the optical microscope we can see that it consists basically of: plasma, red blood cells, white blood cells and platelets.