The Process Of Protein Synthesis

DNA holds all of the genetic information necessary to build a cell’s proteins. The nucleotide sequence of a gene is ultimately translated into an amino acid sequence of the gene’s corresponding protein.Source: OpenStax Anatomy and Physiology By: OpenStax Anatomy and Physiology It was mentioned that DNA provides a “blueprint” for the cell structure and physiology. … Continue reading The Process Of Protein Synthesis

The Free Radical Theory of Aging

Source: iStockphoto By: OpenStax Anatomy and Physiology The free radical theory on aging was originally proposed in the 1950s, and still remains under debate. Generally speaking, the free radical theory of aging suggests that accumulated cellular damage from oxidative stress contributes to the physiological and anatomical effects of aging. There are two significantly different versions … Continue reading The Free Radical Theory of Aging

Peroxisome and Detoxification

Peroxisomes are membrane-bound organelles that contain an abundance of enzymes for detoxifying harmful substances and lipid metabolism.Source: OpenStax Anatomy and Physiology By: OpenStax Anatomy and Physiology A peroxisome is a membrane-bound cellular organelle that contains mostly enzymes. Peroxisomes perform a couple of different functions, including lipid metabolism and chemical detoxification. In contrast to the digestive … Continue reading Peroxisome and Detoxification

Mitochondria

By: OpenStax Anatomy and Physiology The mitochondria are the energy-conversion factories of the cell. (a) A mitochondrion is composed of two separate lipid bilayer membranes. Along the inner membrane are various molecules that work together to produce ATP, the cell’s major energy currency. (b) An electron micrograph of mitochondria. EM × 236,000. (Micrograph provided by … Continue reading Mitochondria