Water is able to cross plant plasma membranes by a combination of  

A.  osmosis and aquaporins.
B.  evaporation and diffusion.
C.  root pressure and turgidity.
D.  diffusion and phloem.
E.  transpiration and Casparian strips.


A.  osmosis and aquaporins.
Water moves from regions of higher pressure to lower pressure (osmosis). In cells, this movement of water is facilitated by small membrane channels called aquaporins. These channels allow water, which is a polar molecule, to rapidly cross the non-polar cell membrane.

Biology & Microbiology

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transcription ends when RNA polymerase reaches a

What will be an ideal response?

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