SA/V ratio Flashcards
why r cells small
efficiency
quicker for material to leave/enter cell
why can’t a human be made of 1 large cell vs trillions of tiny ones
specialized cells (dif functions)
small SA allows for better accomplished absorption of nutrients and disposal of wastes (T/F)
F
larger SA
does shape affect SA/V ratio
yes
types of cells w large SA/V ratios
skinny
flat
those w projections
r cells in multicellular organisms as large as possible
yes
why r cells restricted to certain sizes
assures SA/V ratio provides enough membrane area meeting cells transport needs
volume or SA grows faster as cell size increases
volume
why do cells divide
cuz cell membrane can no longer provide cell w material for life processes or get rid of waste
delivers nutrients
remove waste from cells
distribution stystems
eg. circulatory system
why’s diffusion sufficient
large SA/V ratio
