23.5 - Transport in Plants

what three types of force moves water through and up the xylem?

root pressure, capillary action, and transpiration

what is capillary action?

adhesion and cohesion working together

what three types of force moves water through and up the xylem?

root pressure, capillary action, and transpiration

what is capillary action?

adhesion and cohesion working together

what is adhesion?

attraction between unlike molecules

what is cohesion?

attraction between like molecules

what are the four factors of transpiration?

temperature, wind, humidity, and light intensity

what is the difference between transport of water and nutrients?

water pulled up, while nutrients pushed up

where does nutrient transport take place?

phloem

during the winter, nutrients are…

pumped into the roots for storage

what is a source cell?

cell that produces nutrients

what is a sink cell?

a cell that uses nutrients

because water concentration near source cells are (high/low), it results in ____

low, water coming in from xylem

after water enters area near source cell from xylem…

pressure near source cell pushes nutrients away from source

as sink cells take nutrients, concentration of nutrients in nearby area ____, causing ____

decreases, nutrients to flow towards sink cell

in what direction(s) can nutrients flow in phloem?

both ways up and down

in what direction(s) can water flow in a plant?

only up

what is the strongest force that pulls water up (according to the textbook)?

transpiration