The human body uses lipids for a variety of applications, including as a fuel source, to construct membranes and to protect and insulate the body. While ingesting too many lipids can cause health problems, the ingestion ... More »

According to About.com, lipids are a diverse group of fat-soluble biological molecules that can be found throughout the body. They exist in the form of triglycerides, steroids, phospholipids, glycolipids, lipoproteins an... More »

The National Institute of General Medical Sciences states that lipids store energy, insulate the body, and protect vital organs. Lipids also act as messengers and begin chemical reactions that control growth, immune func... More »

In the human body, carbohydrates play a variety of important roles, including providing energy, regulating glucose levels in blood and sparing protein use for body fuel. The body's cells, tissues and muscles require carb... More »

People need lipids because they are used for energy, generating ATP in cellular respiration, building storage triglycerides and phospholipids for membranes and manufacturing certain hormones, according to Dr. Dawn Tamark... More »

Leucoplasts are organelles, cell structures surrounded by membranes, in plant cells that store starch, lipids or proteins, or have biosynthetic functions creating a variety of organic compounds. They are a type of plant ... More »

In the human body, mitosis occurs in the nucleus of the body's normal cells (the somatic cells). It does not occur in gamete cells (cells that are a part of reproduction). More »