Hi , please i need a short comment and question for the post bellow.

Mitochondria are a eukaryotic organelle that produces ATP by aerobic respiration.  It is located in all cells except in red blood cells. A cell is the smallest unit with properties of life.  It makes up 90 % of the bodies energy. It helps the body to sustain life and support growth. The mitochondrion take in nutrients, breaks them down and creates energy for the cell. This is called cellular respiration. The mitochondria’s job is to keep the cell full of energy. Your muscles are one example that are in need of many mitochondria for energy. Mitochondria contain a outer and inner membrane and also matrix. The matrix is filled with enzymes (proteins) and water. The proteins digest organic molecules. Water and carbon dioxide are released. The mitochondria are where oxygen is reduced and broken down into water. Mitochondria also control calcium ions within the cells. If mitochondria cannot perform their function we don’t have energy, our muscles don’t get energy and oxygen is not broken down into water.

All living organisms are mostly water, and water is essential to life. Three properties of water are good solvent properties, stabilizes temperature, and adhesion and cohesion. Water has the ability to form hydrogen bonds and it has two polar bonds which makes water easily dissolved by other substances. The positive and negative ions on a substance attract the opposite in water molecules. Water does not interact with hydrophobic substances such as oils. This is because oils have non-polar molecules in which hydrogen bonds do not form.  A way to measure the energy of molecular motion is by temperature. Molecules jiggle faster as they absorb heat. Hydrogen bonds keeps water molecules from jiggling so it takes more heat to raise the temperature of water compared to other liquids. Because molecules of life function properly only within certain ranges of temperature, temperature stability is important to homeostasis. 0 degrees and below, water doesn’t break hydrogen bonds and become locked into a lattice rigid bonding pattern of ice. These molecules pack less densely than in liquid water. Ice sheets can insulate water that is underneath them from subfreezing air.  Water has cohesion. Cohesion is a property of a substance that arises from the tendency of its molecules to resist separating from one another. Water is cohesive because of hydrogen bonds exert a continuous pull on individual molecules. Water molecules have the ability to escape from the surface of liquid water by the process of evaporation. This is resisted by hydrogen bonds. 

The old saying is that “you are what you eat”. I find this to be true but not literally. The molecules of life are made up of carbohydrates, lipids, and proteins. The foods that we eat are also categorized as these molecules in which they consist of.  Carbohydrates (pastas and bread) consist of carbon, hydrogen, and oxygen, with the simplest being sugars.  Many of the sugars are water soluble which makes it easily to be transported through water based fluids.  Glucose is used as fuel to drive cellular processes. Carb’s give us our source of energy which is used in perspiration. When we eat bread, polysaccharides store the energy. Lipids are non-polar bonds. Lipids are the fatty, waxy, and oily organic compounds. These are found in foods such as cheese, milk, and even meat. They contain triglycerides that serve as energy reservoirs.  As with animals, humans contain cholesterol which is a steroid in animal cell membranes, which helps digest fat. Proteins function depends on its structure which contains amino acids.