phloem loading

what type of transport occurs in the phloem of sucorse

• active tranport

• diffusion

• translocation

• transpiration

do companion cells have cell organelles

• yes

• yes

• no

• no

do sieve tube cells have organelles

• yes

• no

• yes

• no

what does is the other substance transported with sucrose

• ions

• Na+ ions

• H+ ions

• minerals

why does hydrostatic pressure increase in the phloem

• high conc of sucrose in phloem decreases water potential

• high conc of sucrose in phloem increases water potential

• low conc of sucrose in phloem increases water potential

• low conc of sucrose in phloem decreases water potential

adaptions of companion cells

• they have many mitochondria

• They have infolding in nuclear membrane to increase SA for active transport of solutes and many mitochondria to provide the energy for the proton pump

• biology

• They have infolding in membrane to increase SA for active transport of solutes and many mitochondria to provide the energy for the proton pump

what is a source

• a part of a plant that has a surplus of sucrose

• a part of a plant that has a lot of sucrose

• a part of plant that has just enough sucrose

• a part of plant which has no sugar

do you like bio

• yes

• no

• purr

• slay