Biology: The Dynamics of Life, North Carolina Edition

Chapter 23: Plant Structure and Function

Plant Structure and Function

1
Which of these pictures shows a whorled leaf arrangement?
A)<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=gif::::/sites/dl/free/0078675642/181857/ch23_0_b.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"> (1.0K)</a>
B)<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=gif::::/sites/dl/free/0078675642/181857/ch23_0_c.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"> (0.0K)</a>
C)<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=gif::::/sites/dl/free/0078675642/181857/ch23_0_d.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"> (1.0K)</a>
D)<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=gif::::/sites/dl/free/0078675642/181857/ch23_0_e.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"> (1.0K)</a>
2
<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0078675642/181857/ch23_0_a.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (11.0K)</a>
Look at this cross-section of a root. What part of the root is this?
A)mesophyll
B)xylem
C)corm
D)sink
3
Which of these statements is NOT true?
A)Growth response to touch is known as thigmotropism.
B)A negative tropism means the plant grows away from the stimulus.
C)Tropisms are always completely reversible.
D)Nastic movements are plant responses that are not dependent on the direction of the stimulus.
4
Which plant hormone is involved in the fruit ripening process?
A)cytokinins
B)gibberellins
C)auxins
D)ethylene
5
Fruit growers can use auxins to __________.
A)accelerate mitosis
B)enhance fruit formation
C)delay fruit formation
D)speed ripening
6
Meristems and cambium serve plants as __________.
A)protective tissues
B)growth tissues
C)transportation tissues
D)support tissues
7
<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0078675642/181857/ch23_0_f.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (6.0K)</a>
What can you infer from this illustration?
A)The plant is demonstrating phototropism.
B)The plant is demonstrating hydrotropism.
C)The plant is wilting.
D)The plant is demonstrating gravitropism.
8
What affect on plants do cytokinins cause?
A)They speed up the fruit ripening process.
B)They stimulate cell division and mitosis.
C)They increase the rate of bud development.
D)They promote cell elongation.
9
The plant tissue involved with photosynthesis is __________.
A)pericycle
B)mesophyll
C)root hairs
D)woody stem
10
Which of these structures controls a plant's water loss?
A)stomata
B)collenchyma
C)tracheids
D)xylem
11
Which type of plant cells are irregularly shaped?
A)fibers
B)sclerids
C)trichomes
D)stomata
12
Anthophytes contain __________, which efficiently transport water.
A)parenchyma
B)tracheids
C)vessel elements
D)meristems
13
Carrots and beets are examples of __________.
A)pneumatophores
B)leaf blades
C)taproots
D)fibrous roots
14
Which of these structures forms a seal around a root's vascular tissues?
A)root cap
B)petiole
C)bark
D)endodermis
15
__________ give the stem or leaf of a plant a fuzzy appearance.
A)Meristems
B)Phloem
C)Stomata
D)Trichomes
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