Study Guide for Campbell Biology
11th Edition
ISBN: 9780134443775
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece, Martha R. Taylor, Michael A. Pollock
Publisher: PEARSON
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Chapter 39, Problem 7TYK
Summary Introduction
Introduction: Photosynthesis occurs during daytime in most of the plants, whereas the respiration process occurs throughout the day. Photosynthesis is an example of a plant’s response toward the light. The other two responses toward light are phototropism and photoperiodism.
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Students have asked these similar questions
What 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 C
Stems and roots, respectively, exhibit
a. a positive phototropic response and no phototropic response.
b. a negative phototropic response and no phototropic response.
c. no phototropic response and a positive phototropic response.
d. no phototropic response and a negative phototropic response.
Identify each activity as an observation, a hypothesis, an experiment, or a conclusion.
(a)The leaves of the pea plants that received too much water turned yellow.Observation
(b) Jill decided that 5 hours of indirect sunlight gave optimum growth
.
(c) Jack gave the pea plants a controlled amount of water each day.
(d) Jill thinks that too little sunlight will affect plant growth.
Chapter 39 Solutions
Study Guide for Campbell Biology
Ch. 39 - Prob. 1IQCh. 39 - What are the important steps in the transduction...Ch. 39 - What is the plans growth response? What types of...Ch. 39 - Explain how phytochrome can also indicate the...Ch. 39 - What are free-running periods?Ch. 39 - Indicate whether a short-day plant and a long-day...Ch. 39 - Prob. 7IQCh. 39 - Prob. 8IQCh. 39 - Prob. 9IQCh. 39 - Prob. 1SYK
Ch. 39 - Develop a concept map to illustrate your...Ch. 39 - Prob. 3SYKCh. 39 - Prob. 1TYKTCh. 39 - Prob. 2TYKTCh. 39 - Prob. 3TYKTCh. 39 - Prob. 4TYKTCh. 39 - Prob. 5TYKTCh. 39 - Prob. 6TYKTCh. 39 - Prob. 7TYKTCh. 39 - The body form within a species of plant may vary...Ch. 39 - Prob. 2TYKCh. 39 - Small molecules in the cell that amplify signals...Ch. 39 - According to the acid growth hypothesis, a. auxin...Ch. 39 - Which of the following situations would most...Ch. 39 - Prob. 6TYKCh. 39 - Prob. 7TYKCh. 39 - Prob. 8TYKCh. 39 - Prob. 9TYKCh. 39 - Prob. 10TYKCh. 39 - Prob. 11TYKCh. 39 - Prob. 12TYKCh. 39 - Prob. 13TYKCh. 39 - Prob. 14TYKCh. 39 - Prob. 15TYKCh. 39 - Which of the following is not a plant defense...Ch. 39 - Prob. 17TYK
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- Closed stomata ________. a. limit gas exchange c. prevent photosynthesis b. permit water loss d. absorb lightarrow_forwardPhytochrome is a plant pigment protein that: a. mediates plant infection b. promotes plant growth c. mediates morphological changes in response to red and far-red light d. inhibits plant growtharrow_forwardStomata (a) help prevent desiccation of plant tissues (b) transport water and minerals through plant tissues (c) allow gas exchange for photosynthesis (d) strengthen cell walls (e) produce male gametesarrow_forward
- Which of the following is the role of iron in plants? A. endosperm development and dehydrogenase activity B. photodestruction of chlorophyll and chloroplast structure C. energy transferring process for photosynthesis and respiration D. regulatory component of proteins and metabolites in roots and leavesarrow_forwardThe signaling molecule for flowering might be released earlierthan usual in a long-day plant exposed to flashes of(A) far-red light during the night.(B) red light during the night.(C) red light followed by far-red light during the night.(D) far-red light during the dayarrow_forwardWhich of the following statements is/are FALSE for CAM plants? a.The dark reaction uses less ATP and NADPH than other plants. b.Succulents and tropical plants growing under semi-arid condition. c.C4 pathway occurs at night and C3 pathway occurs at daytime. d.Scotoactive stomata are open during daytime but close at nighttime.arrow_forward
- A seedling germinating under a stone grows at an angle away from the stone and upward. This response to touch is called ________. a. gravitropism b. thigmonasty c. thigmotropism d. skototropismarrow_forwardA tropism in response to seasonal changes is associated with a. heliotropism b. phototropism c. photoperiodism d. thigmotropismarrow_forwardWhy do desert plants that live in very hot and dry conditions have stomata? a. To allow for transpiration b. To allow for gas exchange c. To allow for the release of excess heat d. Both a and b are correct.arrow_forward
- The enormous flower stalks of an Agave plant represent which of the following? Agaves are semelparous. Group of answer choices a. high investment in organismal growth b. low investment in reproduction and high investment in maintenance of the organism c. A very high investment in reproduction and none in maintenance of the organism d. High investment in both reproduction and maintenance of the organismarrow_forwardWhich statement best explains the relationship between the amount of sunlight a plant receives and the flow of energy into and out of the plant system? A An increase in the amount of sunlight adds more energy to the system and increases the rate of photosynthesis. B An increase in the amount of sunlight removes energy from the system and decreases the rate of photosynthesis. C A decrease in the amount of sunlight removes energy from the system and increases the rate of photosynthesis. D A decrease in the amount of sunlight adds more energy to the system and decreases the rate of photosynthesis.arrow_forwardWhich of the following adaptations allows plants to pause their life cycle until environmental conditions are optimal? a. Stomata b. Phloem and xylem c. Seeds d. Flowersarrow_forward
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