Complete the following statements that describe the steps in the pressure-flow m
ID: 227602 • Letter: C
Question
Complete the following statements that describe the steps in the pressure-flow model of phloem transport. Then, place the steps in the correct order. Some choices may be used more than once. Drag the text blocks below into their correct order. The build-up of water in the __________ creates a ____________ pressure. Photosynthesizing leaves produce __________ which is _____________ transported to the __________ within the ___________. This pressure causes the majority of ________ contents to flow towards the ______, which act as a sink. After ___________ has left the ________ within ___________, water also exits and is taken up by the __________, where it is transported to the _______ of a leaf for use in photosynthesis again. As ____________ enters, water follows in the sieve tubes __________ through ____________.Explanation / Answer
the correct of sequence of pressure flow model is as follows along with the completed sentences:
photosynthesizing leaves produce sugar which is actively transported to sieve tubes within the phoem.
as sugar enters, water follows in the sieve tubes passively through osmosis.
the build up of water in the sieve tubes creates a positive pressure.
this pressure causes the majority of sieve tube contents to flow towards the roots which act as a sink.
after sugar has left the sieve tubes within phloem. water also exits and is taken up by the xylem,where it is transported to the mesophyll of a leaf for use in photosynthesis again.