Exam 1 Flashcards
Homeostasis
The body’s natural ability to maintain a stable and balance internal environment despite external changes
Evolution
Change in populations over generations
Atom
Basic building block of matter
lon
atom with unequal #of protons & electrons
Hydrogen bonding
Attraction of a partially positive hydrogen to an opposite charge
Covalent bonding
Shaving of electrons between 2 or more atoms
What types of covalent bonds are there?
Polar - electrons are not shared equally
Non Polar - electrons are shared equally
Sugars (carbohydrates)
- Primary source of energy
- Formed by photosynthesis
- Simple chains or loops w/ some hydrogen and oxygen
Lipids (fats and Oils)
- used for energy
- for structure insolation, regulation
- Mostly hydrophobic
Nucleic acids
- Bio molecule
3 Types: DNA, RNA, ATP
-Formed by nucleotides
Cellulose
Main chemical that forms the main structure of plants
Starch
Type 아 Carbohydrate
Amino Acids
Building blocks of protein
Radical Group (R group)
Side chain
Protein
life chains of amino acidsStructuresRegulation
Genes
The basic physical and functional unit of heredity, made up of DNA
DNA
-Deoxy Ribo Nucleic Acid
-Two chains of repeating nucleotides
-Carry genes
RNA
Transcription
mRNA
Bring the code that will build the protein in correct order
rRNA
Actually building the amino acid chain!
tRNA
Bring amino acids to the ribosome!
RNA polymerase
Make chains of RNA
Ribosomes
A cellular mechanism that translates genetic code into chains of amino acids
Transcription
Done by RNA
Polymerase
Done in nucleus
