UNIT 2 BIO QUESTIONS

carbon dioxide enters a cell through

simple diffusion through plasma membrane

what cell shape has highest ratio of SA:V

cuboidal cell

low NA+ goes to high NA+

NA+ moves out through active transport & ATP hydrolysis

4 cell types w SA:V ratio

cell 2

grape osmosis lab - question about water potential

grape juice and NaCl has lower water potential

how mitochondria membrane folding is beneficial

increases area for proteins and energy transfer

movement of substances across membrane

ions are unable to move through bc phospholipid tails

grape osmosis lab 5 - how will cells gain water

cells will gain water more slowly because of the lack of facillated diffusion

paramecia & highest concentration rate

paramecium 1

how does insullin leave cell

exocytosis - vesicle infuses with membrane

diagrammed microscope view

view 2 because the rate of water in and out of the cell is equal

kidney cell with projections benefit

more SA:V ratio

water potential of root cells in plant

water potential of soil is greater than -0.2 MPa and water potential of leaf is less than -0.2 MPa

SA:V ratio in cube cells with formula

10 uPm

rod shaped bacterium

no membrane around DNA (no nucleus)

why does glucose need a transporter to get into cell

glucose is too big to pass through the plasma membrane