Systems with low entropy have high levels of free energy. Why does the Human Body need Energy? ← Anabolism: the building up of large molecules from small ones, e.g. protein synthesis from amino acids; DNA replication; polysaccharide synthesis from monosaccharides. Anabolism is essential for growth; repair of cells after injury or disease; renewal of cells when they need replacing; and reproduction ← Movement: muscle contraction, ciliary action, cell division, nerve impulses ← To maintain a steady body temperature and to stay warm ← Active Transport of materials across cell membranes ←
Enzymes act as biological catalysts; they make chemical reactions to work quicker and remains unchanged when the reaction finishes. Therefore enzymes are used to speed up biological reactions in body. They can be working within cells and outside cells catalyzing metabolic reactions in human bodies. Enzymes are globular proteins; therefore they are soluble and easily transported in blood. Enzyme has an active site in a specific shape because of its tertiary structure.
Growth hormone stimulates growth and therefore it is particularly important during childhood. It is also important in adulthood because it enables protein synthesis and cell growth to take place. This is vital in the restoration of body tissue because proteins are fragile and must constantly be renewed. This constant restoration of vital proteins is part of the body’s natural recovery process. Growth hormone is secreted pulses during the day but a significant amount is released during.
Their temperature matches that of their environment. All organisms have a range of temperatures within which they can survive. Every organism also has an optimum temperature at which it grows best. The temperature limits on growth are dictated by the proteins in the cell and the structure of the cell membrane. Microorganisms are classified by their optimum growth temperature.
Research discussed in this paper is focused on a new method of scaffolding fabrication which improves upon the microstructure of HA scaffolds. Furthermore, the paper elaborates on how the unique microstructure increases the mechanical strength of the biomaterial and enables proliferate of viable osteoconductive cells (M3T3-E1 cells). I then discuss another form of HA biomaterial technology
By genetic mutations, it is possible for organisms to be born with larger brains and hence greater intelligence. These organisms, thanks to their selective advantage, will multiply and eventually replace the previous, less intelligent, organisms. As such, species will evolve
C. Define the term nutrient, and outline the main groups of nutrients. (6 marks) Nutrients are what the body takes in through food and liquids. It contains chemicals used to feed cells for cell building and also gives us energy to do the things we love. The main groups of nutrients are: Carbohydrates- these are important for energy to keep us going. Lipids- they enter the body as a fat.
Homeostasis is the property of a system in which variables are controlled so that internal conditions remain steady and relatively constant. Examples of homeostasis contain the regulation of body temperature and the balance between alkalinity and acidity (pH). It is a process that maintains the stability of the human body's internal environment in response to changes in external conditions. (American, 2000) Homeostasis is essentially an internal biological process in which the body maintains internal equilibrium. The variable that is being monitored in homeostasis process is known as the variable or controlled variable.
Future technology in altering the human body could change so many lives with the handicap, cosmetically, or making our bodies better and stronger. It could possibly making a prosthetic limb feel like a real limb, or change the life of a disfigured person by making them look completely normal. Stem cells could cosmetically keep a person from aging, and using their own DNA could correct cavities by regenerating their teeth, or replacing missing, or damaged ones. Scientists could possibly make body parts that are better than their own. People could replace their own body parts with better ones, by using bionic arms and legs to make faster or stronger athletes, clone eyes to see better, and have bionic hearing so people can hear a pin drop.
Physical health: Physical is your appearance and how you maintain and taken care of it. It also helps when there are physical tasks in you life that need to be done. One characteristic of this can be the size and shape of your body. I need to stay in good physical shape to not only help me at work, but to keep up with my children because they are so active. Social health: Social health allows you to have interactions in a social environment and behave accordingly.