Macromolecules Flashcards
(45 cards)
Inorganic compounds
Sodium, chloride, bicarbonate
Organic Compounds
Contain both carbon and hydrogen
Include: carbs, proteins, lipids, nucleic acids
Polymers
Large molecules made up of repeating units. Example: glucose
Monomers
Individual building blocks in polymers. Example: starch, cellulose, glycogen
Metabolism
All the reactions that take place within a cell
Anabolism
The reactions that build up structures
Catabolism
The reactions that break down structures (enzyme digestion)
Hydrophobic/lipophilic
Water fearing, fat loving.
Oils. Non polar.
Hydrophilic/lipophobic
Water loving. Fat fearing. Water. Polar.
Cells must:
Obtain and ingest food and water Get rid of wastes Grow Respond to their environment Reproduce
Biochemistry
The study of chemical reactions ad the molecules and processes involved in them
Photosynthesis equation
6CO2 + 6H2O = 6O2 + C6H12O6
carbon dioxide + water = oxygen + glucose
Sugars and starches always contain…
…2 atoms of hydrogen and one atom of oxygen for every atom of carbon. CH2O
Carbohydrates provide
Short or longer term energy storage
Monosaccharide
A carbohydrate molecule with 3-7 carbon atoms (simple sugar)
Example: glucose, fructose, galactose
Disaccharide
Made up of two simple sugars held together by dehydration synthesis (maltose, sucrose, lactose)
Nutritional source of monosaccharides
Polysaccharide
Large numbers of simple sugars linked via dehydration synthesis
A complex carb
(starch, glycogen, cellulose)
Energy storage
Starch
Energy storage in plants
Glycogen
Energy storage in animals
Cellulose
Plants use to build cell walls, stores energy, provides support.
Lipids
Do not dissolve in water
Contain carbon, hydrogen, oxygen
Include: triglycerides, waxes, phospholipids, waxes, steroids
Lipids purposes
Long term nutrient and energy storage
Insulation
Cushioning of organs
Hormones
Fat molecule structure
3 branched
One molecule of glycerol
Three molecules of fatty acid
AKA triglyceride (non polar)
Fatty acid
A hydrocarbon chain
Attaches to one of the three main reaction sites on a glycerol molecule