Unformatted text preview: 5. Active (ATP-driven) transport is required to @ load sugars into phloem.
b. unload water from xylem.
2” load sugars into xylem.
. move ions through the apoplast.
lei push sugars down the phloem. 6. The presence of the Casparian strip means that a plant would starve for
mineral nutrient ions if it did not have a trichomes increasing its root surface area.
b. taproot to store nutrients in over the winter.
ion transporters embedded in its membranes.
proteins connecting the endodermis and pericycle.
. plasmodesmata connecting apoplast and symplast. 7. Plants open their stomates by pumping guard cells. Q. potassium ions into /7 \\ (’\w b. water into '/ l” 4,1 /F/ _ c. potassium ions out of '//;L 1 d. water out of . 45/ \ e. potassium ions into E water out of ' \1/ TMW "” 5i 8. Based on the table at right, the primary driving :Wlffhmr WW afﬁméa) force for xylem transport is the difference in ‘I'w EAESWWRHmMMgStz between 5 I LeafAirSDaoea l 0.8 5 Leaf Cell Vawoie 0.8 @ air and leaf air spaces g:
b. leaf air spaces and leaf cell vacuole 5
i » MWWWwme ewmwwwm§ c. leaf air spaces and leaf xylem
d. leaf xylem and root xylem ‘”
6. root xylem and so“ near root g .. 9. If a plant lost the ability to carry out fermentation, it would ‘21K die from an inability to make lactic acid. Je\ die from an inability to make ethanol and 002.
*c‘ not be able to survive in the presence of oxygen.
d. have to get all its ATP from glycolysis. % cease glycolysis under ﬂooded conditions. ...
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- Spring '08