Chemistry of life Flashcards
(22 cards)
Hydrogen bonds
allow water to have special properties
Cohesion
Water molecules stick to each other
Adhesion
Water molecules stuck to other surfaces
Monomers form polymers via what?
dehydration tension
What happened in hydrolysis
Polymers are broken down into monomers
Nucleic acids
Are what make up DNA and RNA and hold a lot of genetic information.
What nucleic acids is made up of?
They are made up of nucleotides which are composed of decoy/ribose, a phosphate and nitrogen base
Amino acids
make up a protein, and the specific order of the polypeptide determines the protein’s structure and function.
carbohydrates.
Lipids
are nopolar and can vary in saturation (which affects the structure and function). They are most commonly seen as the cell membrane.
Phosphate
-PO4
-P bound to 4 O
- connects to C through an O
- lots of O= lots of negative charge
- highly reactive
- transfers energy between organic molecules
-ATP, GTP
Covalent bonds
Is the sharing of a pair of valence electrons by two atoms.
Hydrophilic
Any substance that has an affinity for water
Hydrophobic
Any Substance that are nonpolar
What is organic chemistry?
Is the study of carbon compounds
Hydroxyl
—OH
-organic compounds with OH=alcohols
- name typically end in -ol
Ex: Ethanol
Carbonyl
C=O
-O double bonded to C
-if C=O at end molecule= aldehyde
-if C=O in middle of molecule = ketone
Carboxyl
-COOH
_ C double bonded to O and single bonded to OH group
- compounds with COOH= acids
- Fatty acids
- amino acids
Amino
-NH2
-N attached to 2 H
-compounds with NH2= amines
- amino acids
- NH2 acts as base
-
Sulfhydryl
-SH
-S bonded H
-Compounds with SH=thiols
-SH groups stabilize the structure of proteins
Macromolecules
Smaller organic molecules join together to form larger molecules
-4 major classes of macromolecules:
-carbohydrate
-lipids
- proteins
- nucleic acids
How to build a polymer?
-Synthesis
- requires; energy and enzymes
How to break down a polymer ?
-digestion
- reverse dehydration synthesis
Require enzyme and release energy