試題詳解

47. Transport in plants include all of the following except
(A) absorption of water and minerals from the soil by cells of a root.
(B) that transpiration creates a force within leaves that pulls xylem sap upward.
(C) leaves exchange gases through stomata, taking in the CO₂ that provides carbon for photosynthesis and expelling O₂.
(D) active transport of sugar from one sieve-tube to the next.
(E) that potassium is uptaken by guard cells during stomatal opening.