Chemistry Of Life
Anna Hummel
Water
- Adhesion is an attraction between different substances. Adhesion wouldn't combine with the same substance because that would be cohesion.
- Cohesion is the attraction of the same substance. If you try combining 2 different things, that would be adhesion.
- Polarity is anything that has charge.
- A pH scale is a scale based on the concentration of hydrogen ions in a solution.
Adhesion
Adhesion attracts to plants and other substances. This picture shows how it cant attract to a plant.
Heat Storage
When a person is sweating the water takes away the heat from the body.
Cohesion
Since cohesion attracts to same substances, water is an example. This shows how the water combines with each other and its cohesion.
General Information on Macromolecules
Macromolecules
- Macro is the root word of large, so the word macromolecule means large molecules. A macromolecule is made up of smaller molecules. There are four types of macromolecules. They are carbohydrates, lipids, proteins, and nucleic acids.
- Carbohydrates are large groups of organic compounds in foods and living tissue. They also include sugars, starch, and cellulose.
- Lipids are nonpolar molecules that are not soluble or mostly insoluble in water. Lipids are important to cell membranes.
- A protein is large molecule that makes a chain with smaller molecules called amino acids.
- Nucleic acids are a long chain of small molecules called nucleotides.
Carbohydrates
- Carbohydrates are organize compounds made of carbon, hydrogen, and oxygen atoms.
- They are the key source of energy and are found in most foods.
- Monosaccharides are the building blocks of carbohydrates and single sugars.
- Polysaccharides are chains of monosaccharides with 3 or more
Lipids
- Lipids are nonpolar molecules that's are not soluble or mostly insoluble in water. They have fats, phospholipids, steroids, and waxes.
- This is the important part of the structure and function of the cell membranes.
- Some lipids have some light-absorbing compounds called pigments.
- Fats are lipids that stores energy.
Proteins
- A protein is a large molecule formed by amino acids.
- Amino acids are the building blocks of proteins. Amino acids have polar and nonpolar molecules.
- Proteins fold into compact shapes and they form by how the proteins amino acids interact with water and each other.
- Some proteins are enzymes and make chemical reactions and others have an important structural functions.
Nucleus Acids
- A nucleic acid is a long chain of smaller molecules called nucleotides and a nucleotide has 3 parts to it : a sugar, a base, and a phosphate group. A phosphate group has phosphorus and oxygen atoms.
- The two types of nucleic acids are DNA and RNA. They each have 4 kinda of nucleotides.