Midterm on 10/26 Homework: Homework Packet 6 Warm up: What is the function of lipids in our bodies? Give an example of a lipid. Flush: What is your favorite subject to learn about? Midterm on 10/26 Homework: Homework Packet 6
Plan for Today- Biochemistry Review Biochemistry Card Sort Review Notes Life of an Enzyme Worksheet Practice biochem exam questions
Biochem Card Sort Sort these cards into 4 categories (one for each biomolecule) Work together as a team!!! When you think you got it, raise your hand and I will come check!
Lipids (fats) Lipids are made of a fatty acid and glycerol Lipids store energy, act as insulation, and make up the cell membrane
Example of a Lipid- Phospholipid Phospholipids make up the majority of cell membranes Two parts: Hydrophilic head (love water) and hydrophobic tails (fear water) Creates a lipid-bilayer that surrounds our cells and restricts what can enter and leave the cell You get lipids from your diet- but excess lipids can be a bad thing
Nucleic Acids Nucleic acids are made up of nucleotides (phosphate, sugar, nitrogenous base) Their function is to store and transmit genetic information Two main examples: RNA and DNA
Example of a Nucleic Acid: mRNA mRNA (messenger RNA) is made from a DNA template and carries the genetic code outside of the nucleus during protein synthesis It is made during transcription, and will bind with the ribosome during translation Every 3 letters of mRNA (a codon) codes for a specific amino acid mRNA has 4 bases: Uracil, Adenine, Cytosine, Guanine
Proteins Proteins are made of amino acids held together by peptide bonds Proteins do everything in a cell- structure and function Enzymes, hormones, channel proteins, insulin, keratin, antibodies DNA mRNA Proteins
Example of a Protein- Hemoglobin Hemoglobin is a protein found in red blood cells that carries oxygen to your tissues Your cells need oxygen to go through aerobic respiration to get ATP A point mutation (substitution in one letter) in DNA can change the structure of hemoglobin and cause sickle cell anemia
Carbohydrates Carbohydrates are made up of monosaccharides Their function is to be used in cellular respiration to provide energy for organisms Examples: Glucose, lactose, amylose, cellulose They can also be structural Cellulose is a carbohydrates that makes up the cell wall in plants
Example of a Carbohydrate- Glucose Glucose is a monosaccharide that is used during cellular respiration The bonds of glucose are broken and that energy in the bonds is used to create ATP Plants have to create their own glucose through photosynthesis