1 <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=gif::::/sites/dl/free/0078802849/383946/ev.gif','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (31.0K)</a>]]> A) gas exchange B) provides textiles C) support D) photosynthesis 2 A) palisade mesophyll B) petiole C) cuticle D) stoma 3 A) tuber B) bulb C) runner D) pericycle 4 A) positive gravitropism B) phototropism and positive gravitropism C) phototropism and negative gravitropism D) nastic response 5 A) tracheids B) trichomes C) guard cells D) xylem 6 A) base layer B) petiole C) root cap D) pericycle 7 <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=gif::::/sites/dl/free/0078802849/383946/ey.gif','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (20.0K)</a>]]> A) hydrogen destroys cell B) cell shortens C) water prevented from entering D) cell wall weakens 8 A) apical results in photosynthesis; lateral results in gas exchange B) laterals are never seen in eudicots; apicals are typically in eudicots C) apical increases root diameter; lateral increases plant height D) apical results in primary growth; lateral results in secondary growth 9 A) growth response to an external stimulus B) growth response to a hormone C) structure that produces gas exchange D) structure that inhibits photosynthesis 10 A) helps to anchor root to rest of plant B) forms substance that stifles root growth C) protects and lubricates growing roots D) helps break roots away from plant in harsh climates 11 A) epidermal cell, secretes a substance that forms cuticle B) guard cell, aids photosynthesis C) trichome, cools plants by reflecting light D) companion cell, dissolves substances 12 A) phototropism B) gravitropism C) thigmotropism D) nastic response 13 A) grape vine wrapping around a flower pot B) sunflower bending toward the sun C) house plant growing toward a window D) upward growth of a new stem 14 <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=gif::::/sites/dl/free/0078802849/383946/ex.gif','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (61.0K)</a>]]> A) stoma B) guard cell C) vascular bundle D) palisade mesophyll 15 A) Their guard cells form durable tissues. B) Rigid cell walls and fibers form durable tissues. C) They perform most of the major cell functions. D) Vascular cambium provides elastic fibers.
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