Campbell Biology in Focus
3rd Edition
ISBN: 9780134710679
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Rebecca Orr
Publisher: PEARSON
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Question
Chapter 31, Problem 6TYU
Summary Introduction
Introduction:
Motion or bending of plants or the plants organ in response to gravity is known as gravitropism.
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A plant lacking the WOODEN LEG gene will likely
a. be incapable of transporting water to its leaves.
b. lack xylem and phloem.
c. be incapable of transporting photosynthate.
d. All of the choices are correct.
Which of the following may stimulate the growth of the roots in plant cuttings?
Select one:
a. The use of auxins.
b. A decrease in soil minerals.
c. A decrease in enzymes.
d. The use of endocrine secretions.
Root cells exhibit positive gravitropism with the help ofa. auxin in the root cells.b. amyloplasts in root cells.c. exposure to sunlight.d. a nearby substrate.
Chapter 31 Solutions
Campbell Biology in Focus
Ch. 31.1 - Prob. 1CCCh. 31.1 - WHAT IF? If a plant has the double mutation ctr...Ch. 31.1 - Prob. 3CCCh. 31.2 - If an enzyme in field-grown soybean leaves is most...Ch. 31.2 - WHAT IF? If a plant flowers in a controlled...Ch. 31.2 - MAKE CONNECTIONS Plants detect the quality of...Ch. 31.3 - Prob. 1CCCh. 31.3 - Prob. 2CCCh. 31.3 - Prob. 3CCCh. 31.4 - Prob. 1CC
Ch. 31.4 - Chewing insects mechanically damage plants and...Ch. 31.4 - Prob. 3CCCh. 31 - The hormone that helps plants respond to drought...Ch. 31 - Prob. 2TYUCh. 31 - Prob. 3TYUCh. 31 - Prob. 4TYUCh. 31 - Prob. 5TYUCh. 31 - Prob. 6TYUCh. 31 - DRAW IT Indicate the response of Arabidopsis to...Ch. 31 - Prob. 8TYUCh. 31 - FOCUS ON EVOLUTION As a general rule,...Ch. 31 - FOCUS ON INTERACTIONS In a short essay (100-150...Ch. 31 - Prob. 11TYU
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- How do the internal structures of the plant shown compare to a cactus? A. They both have ovaries for protection. B. Photosynthesis occurs within the phloem of both plants. C. They both have thorns for reproduction. D. They are both able to transport water in many directions.arrow_forwardPruning plants can promote lateral stems and increased plant biomass by _____________. Select one: a. suppressing cytokinin transport b. suppressing auxin transport c. promoting cytokinin transport d. promoting auxin transportarrow_forwardGuttation in plants is due to condensation of water vapor and occurs through the hydathodes. D. Disagree, because guttation occurs through the stomates. A. Agree, because guttation occurs through the hydathodes. B. Disagree, because it is root pressure that causes guttation. C. Agree, because during night time, water condenses due to drop in temperature.arrow_forward
- How would a loss-of-function mutation in the α-amylase gene affect seed germination? a. The seed could not imbibe water. b. The embryo would starve. c. The seed coat would not rupture. d. The seed would germinate prematurely.arrow_forwardYou have heard that singing to plants helps them grow and wonder if there is any validity to thisclaim. So, you conduct an experiment using numerous plants to determine if being exposed tomusic has any effect on their growth. 16. Which of the following is an appropriate sequence of steps to follow when conducting an experiment tostudy the effects of music on plant growth?a) theory → experiment → question → conclusion → observationsb) hypothesis → question → observations → conclusion → theoryc) question → observations → hypothesis → experiment → conclusiond) question → theory → observations → experiment → conclusion 17. For this experiment, what would be the independent variable?a) music b) plant growth c) amount of water d) type of plant 18. For this experiment, each of the following would be an example of a standardized variable, except _____ .a) exposure to light b) species of plant c) type of music d) plant stem lengtharrow_forwarda. Describe the function of plant roots. b) Describe the function of plant shoots. c)What is the function of lignin in terrestrial plants? d)What are xylem and phloem and how do they differ? e)Exactly what is pollen? f)Exacly what is a seed?arrow_forward
- What happens when a stem is positively tropic to a certain stimulus? a. Auxins will respond by increasing the growth rate of the side facing that stimulus.b. The stem will respond by growing towards that stimulus.c. The stem will grow and bend away from that stimulus.d. The stem will respond by accumulating auxins in the side facingthat stimulus.arrow_forwardWhat will likely happen to your plant if it will be placed in a dark area with no light? A.The plant will not be able to absorb sunlight B.No chlorophyll will be formed and the leaves will become whitish or pale yellow C.Plants will evolve to adapt in an environment with no light D.BothA and B E. BothA and Carrow_forwardWhat is the difference between a gumamela and banana as depicted by the pictures below? a. gumamela is a monocotyledonous plant; on one hand, banana is a dicotyledonous plant b. Both are monocotyledonous plants c. Gumamela is a dicotyledonous plant; on the other hand, banana is a monocotyledonous plant. d. both are dicotyledonous plantsarrow_forward
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