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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Textbook Question
Chapter 39, Problem 6IQ
Indicate whether a short-day plant and a long-day plant would flower or would not flower under the indicated light conditions.
How do these results demonstrate the red/far-red photoreversibility of phytochrome?
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Using the provided figure, describe the importance of the two phytochrome systems in controlling de-etiolation and green stem elongation under full sun and shade. Include the key mechanisms and temporal changes in control of this process.
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rapid shade avoiding responses? *
What are the TWO (2) light regions detected by phytochromes and
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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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- What is a feasible explanation why there is lesser percentage of germination and growth rate in monggo seeds when sprinkled with water added with 3/4 teaspoon as compared to monggo seed set-ups sprinkled with water?arrow_forwardName the TWO (2) components for phytochrome and where are they being synthesised? *arrow_forwardWhat is the floral formula of Citrofortunella microcarpa (calamansi)? Illustrate the floral diagram.arrow_forward
- what type of stem modification does: -Gloriosa superba-Ficus benghalensis have?arrow_forwardWhat is the relationship between light intensity and the rate of photosynthesis. Make a prediction about this relationship, and identify both independent and dependent variables in the prediction. What will be a suitable hypothesis predict answers for the following: A) what is the rate of germinating peas versus non-germinating peas. B) what is the effect of temperature on germinating peas?arrow_forwardDiscuss other morphological differences between sunny and shady set-ups of mung bean in relation to phototropic response of plants. Characteristics sunny shaded Leaf color Lime Green Pale Green Direction of Growth Grows upward towards the direction of sunlight Oriented in the direction of the light but growth is bent downwardarrow_forward
- What is the critical photoperiod? How can the critical photoperiod of flowering be experimentally determined?arrow_forwardThe oat coleoptiles of the seedlings (in the picture) have been modified: either cut or placed in a light-blocking tube. Explain which ones will stills bend toward a directional light source??arrow_forwardWould a red:FR light value of 0.14 1:7 be expected of a plant in shaded light beneath a leaf canopy and if we assume that ratio would we expect that our pfr per total phytochromes would be more than that in direct sunlight?arrow_forward
- What is a possible explanation for the leaf color shown below?arrow_forwardA group of students have carried out an experiment to investigate the relationship between the amount of growth hormone BAP in the culture medium and the growth of shoot.They have supplemented the medium with 4 different concentration of growth hormone which is (1 mg/L ,2 mg/L BAP,3 mg/L 4 mg/L) of BAP.According to the result after eight weeks, BAP at 2 mg/L had given better response with respect to shoot induction, shoot multiplication, length of shoot, and number of leaves per explants when compare with other amount of BAP. Discuss why?arrow_forwardGreen mangoes were freshly harvested from tree and buried in a jar of uncooked rice to accelerate ripening process. During storage, the fruit colour has changed to yellow. Explain the principles behind this ripening process by relating to the fruit tvne and identify the phytohormone responsible for this ripening process. (i) Suggest another simple method to expedite the ripening process with another fruit of the same type. Marks will be awarded for the correct type of materials (fruit), method and experimental set up (temperature and space). (ii)arrow_forward
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