Chapter 2 Flashcards
Merging property
Membranes are interchangeable with each other
Extracellular matrix
proteins outside of the cell
What is the ECM for
sensing and communication
Hydrophilic proteins must travel in vesicles
False
Lyposome
Equivalent of vesicle
How do senses work
through proteins (receptors)
Phage
A cell that does a lot of phagocytosis
Ex: WBC
Weak bonds permit what
Interactions of biomolecules to allow life processes
1 Angstrom
Distance of a covalent bond with an H atom
0.1 nm
Brownian motion
Movement powered by random fluxes in enviro energy
Thermal movement
Constant movement causes disorder and energy loss
More disordered = Less likely to react
False
Why do most biochemical reactions happen in aqueous solution
Water is stable and polar
Hydrophilicity is the same as being polar
True
Do hydrocarbons have a partial charge
No, so they are hydrophobic
If there is an N or O in a functional group of a hydrocarbon the molecule will remain non-polar
False
What type of strong bond can water create
Hydrogen bonds
How many H bonds can water make
4
What is an H bond donor
A molecule that gives up its H to a lone pair
Cohesion
Self connection
Ubiquitous solvent
Water
Dissolves many solutes
Detergent
Acts as a bridge between hydrophobics and hydrophilics
Weak interactions allow for
reversable reactions