BIO Unit 2
How does an Enzyme accelerate a reaction?
Bringing molecules closer
Competitive inhibitor
A molecule that also attaches to receptor
Allosteric Activator
Chemical that makes it harder or easier for a signal to attach to enzyme
What should an active site molecule have?
Ability to hydrogen bond (polarity)
Shape of RNA
irregular 3D, Linear
Shape of DNA
Double helix
A single strand of RNA can form base pairs with...
itself, another strand of RNA, a single strand of DNA
An A-T base pair and a C-G base pair have
the same size
Complementary strand of 5'-GGCAT-3'
5'-ATGCC-3'
What movement is most rapid in membranes?
Lateral diffusion of a membrane lipid
Characteristics of substance that can get through lipid bilayer
Small, Nonpolar
Where do solutes move to in diffusion
Toward Solvent/Where there is less Solute
What do Prokaryotes not have?
Nucleus memebrane/Lysosomes
Nucleus
Storage of DNA/RNA
Mitochondrian
Generate chemical energy
Cell Wall
Protection and Structure
Plasma Membrane
Maleable/Structure
Peroxisome
Generate Hydrogen peroxide
Ribosomes
Translate genetic code
Lysosomes
Break down excess/worn out cell parts
Vacuole
Expelle excess water
Cytoskeleton
Organization/Framework
Smooth ER
Manufacture Lipids
Rough ER
Produce Protiens
Chloroplasts
Produce energy through photosynthesis
Golgi Apparatus
Process protiens further (add C groups)
Cell Wall make up
Pectin Polysacchirides
Plasma Membrane makeup
Protiens and lipid bilayer
Tight Junctions
Regulate lipid bilayer
Gap Junctions
Permit direct cell-cell ion transfers (communication)
Microtubule
Hollow rods that make up cytoskeleton (kinesins walk along)
Desmosomes
Attachment of two cells