Macromolecules Flashcards
(50 cards)
Organic Compounds
found in all living things, primarily composed of covalent bonds
Importance of Carbon
the backbone of all organic compounds
Polymers
monomers linked together
Monomer
individual subunits of macromolecules
Nucleic Acids
Example: DNA, RNA, ATP
Monomer: Nucleotide
Carbohydrates
Example: Mono, Di, Poly
Monomer: Monosacchride
Proteins
Example: Antibodies
Monomer: Amino Acid
Lipids
Example: Fatty Acid
Monomer: none
Nucleotides
a nitrogenous base, a pentose sugar, one or more phosphate groups
DNA
carries genetic information
DNA Shape
twisted, double helix
DNA function of sugar/phosphate
structural framework
DNA function of Nitrogenous Bases
building blocks of genetic information
RNA
converts DNA info into protein
Differences between DNA and RNA
- RNA has a single helix, and DNA has a double
- DNA has a deoxyribose base, and RNA has a ribose base
- RNA uses uracil, while DNA uses thymine
ATP
the source of energy for use and storage at the cellular level
ATP’s relationship with ADP
ATP loses the third phosphate group and it releases energy for cell functions becoming ADP (hydrolysis)
Carbohydrate’s Elemenal Composition
contains C, H, and O at a 1:2:1 ratio
Carbohydrates function in living oransims
an energy source, or part of the structure of the organism
Monosaccharides
number of units: 1
example: glucose
fast energy
Disaccharides
number of units: 2
example: sucrose, lactose, maltose
energy storage
Polysaccharides
number of units: 3
example: starch, glycogen, cellulose, chitin
energy storage
Lipids Elemental Composition
contains mostly C and H
Hydrophobic
doesn’t dissolve in water