My First Week In Biology

My name is Andjie. I am a senior social work major. I am in this class because it is recommended for my major. This first week has been great, although I feel a bit overwhelmed. There has been a lot of information presented to us. The professor is an expert in her field. She is energetic and presents the information in a way that does not make me want to fall asleep. The topics that have been presented to us this last week include: an introduction, learning about human biology, and the chemistry of life. So, I thought I’d present to you a few terms that I’ve either learned, or has been redefined to me to fit the purpose of this class. Lipids: A greasy or oily compound of mostly carbon and hydrogen that shows little tendency to dissolve in water, but that dissolves in non-polar solvents. Proteins: A large organic compound composed of one or more chains of amino acids held together by peptide bonds. Carbohydrates: A biological molecule built of carbon, hydrogen, and oxygen atoms, usually in a 1:2:1 ratio. All cells use carbohydrates as structural materials, energy stores, and transportable forms of energy. The three classes of carbohydrates include monosaccharide, oligosaccharides, and polysaccharides. Glycerol: A three-carbon molecule with three hydroxyl groups attached; together with fatty acids, a component of fats and oils. Glycogen: A storage polysaccharide that can be readily broken down into glucose subunits. I got all these definitions from my science book. "Human Biology" 10th Edition Authors: Starr and McMillan