Campbell Biology (11th Edition)
11th Edition
ISBN: 9780134093413
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece
Publisher: PEARSON
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Textbook Question
Chapter 39.5, Problem 2CC
Chewing insects mechanically damage plants and lessen the surface area of leaves for photosynthesis. In addition, these insects make plants more vulnerable to pathogen attack. Suggest a reason why.
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Chewing insects mechanically damage plants and lessen the surface area of leaves for photosynthesis. In addition, these insects make plants more vulnerable to pathogen attack. Suggest a reason why.
Which option describes photoperiodism?
time of the day when light shines with the most intensity
amount of light needed by a plant to exhibit normal growth
biological response of a plant to a change in the length of daylight relative to darkness
duration of flowering in a plant
the light phase of photosynthesis during which photolysis of water occurs
An ________ is a plot showcasing a plant’s preferred light wavelengths which will result in maximum rates of photosynthesis.
Chapter 39 Solutions
Campbell Biology (11th Edition)
Ch. 39.1 - What are the morphological differences between...Ch. 39.1 - Cycloheximide is a drug that inhibits protein...Ch. 39.1 - Prob. 3CCCh. 39.2 - Prob. 1CCCh. 39.2 - WHAT IF? If a plant has the double mutation err...Ch. 39.2 - MAKE CONNECTIONS What type of feedback process is...Ch. 39.3 - If an enzyme in field-grown soybean leaves is most...Ch. 39.3 - WHAT IF? If a plant flowers in a controlled...Ch. 39.3 - MAKE CONNECTIONS Plants detect the quality of...Ch. 39.4 - Prob. 1CC
Ch. 39.4 - Prob. 2CCCh. 39.4 - Prob. 3CCCh. 39.5 - What are some drawbacks of spraying fields with...Ch. 39.5 - Chewing insects mechanically damage plants and...Ch. 39.5 - Many fungal pathogens get food by causing plant...Ch. 39.5 - WHAT IF? Suppose a scientist finds that a...Ch. 39 - What are two common ways by which signal...Ch. 39 - Is there any truth to the old adage, "One bad...Ch. 39 - Why did plant physiologists propose the existence...Ch. 39 - Plants that have acclimated to drought stress are...Ch. 39 - Prob. 39.5CRCh. 39 - Prob. 1TYUCh. 39 - Prob. 2TYUCh. 39 - Prob. 3TYUCh. 39 - How may a plant respond to severe heat stress? (A)...Ch. 39 - Level 2: Application/Analysis 5. The signaling...Ch. 39 - If a long-day plant has a critical night length of...Ch. 39 - Prob. 7TYUCh. 39 - DRAW IT Indicate the response to each condition by...Ch. 39 - Level 3: Synthesis/Evaluation 9. EVOLUTION...Ch. 39 - SCIENTIFIC INQUIRY A plant biologist observed a...Ch. 39 - SCIENCE. TECHNOLOGY, AND SOCIETY Describe how our...Ch. 39 - Prob. 12TYUCh. 39 - Prob. 13TYU
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- Why is a weed significant as a pest?arrow_forwardPhotorespiration causes a number of impacts on a plant. Which of these drives the ECOLOGICAL difference between C3 and C4 plants Question 4 options: Rubisco mistakes Oxygen for CO2 The plant uses energy to convert the toxic product of photorespiration back into something less harmful The plant needs a large number of enzymes to be able to regain the energy invested in the 2 carbon molecule produced by photorespiration None of these explain the difference The plant needs to do gas exchange to remove oxygen and add CO2 to the cell doing photosynthesis to avoid photorespiration.arrow_forwardThe hormone abscisic acid provides advantages to plants in stress conditions by Select one: inhibiting the growth of nearby plants and so reducing competition attracting beneficial predatory insects increasing tolerance to environmental stressarrow_forward
- The figure below an apparatus for measuring net photosynthesis by measuring the change in CO2 concentrations when a leaf is put into an illuminated chamber. Why might you also measure the change in CO₂ concentration in the dark? Is this statement correct, incorrect or irrelevant answer to the question. Measuring photosynthesis through a decrease in CO2 (CO2 uptake by the plant) over a short time in the light can help one create an estimate of gross primary productivity. In order to estimate net primary activity one needs to measure the decrease in CO2 in the chamber in the dark to estimate energy loss through respiration Light source (a) Light O irrelevant O incorrect correct Sealed chamber Carbon dioxide sensor Leaf CO₂ CO₂ (b) Dark CO₂ Relyea, Ecology, 9e, © 2021 W. H. Freeman and Companyarrow_forwardThe pathogenic fungus Fusicoccum amygdali secretes atoxin called fusicoccin that activates the plasma membrane proton pumps of plant cells and leads to uncontrolled water loss. Suggest a mechanism by which theactivation of proton pumps could lead to severe wilting.arrow_forwardWhat would happen if all the plants died? Few people care about the impact of vegetation other than for consumption. In this post, you will demonstrate an understanding of the impact of photosynthesizing plants on everyday life. Discuss the impact photosynthesizing plants have on our lives.arrow_forward
- If plants need CO2 to construct glucose (by photosynthesis), why is the rising level of CO2 in the atmosphere cause for concern? You’d think more CO2 would accelerate plant growth, and that would be a good thing.arrow_forwardThe graph represents the absorption spectrum of chlorophyll. How does this graph help to explain why leaves turn different colors in the fall?arrow_forwardIf a C3 plant that normally closes its stomata during hot, dry conditions were triggered to open them instead, the most likely outcome would be that O water leaves the leaf, decreasing the rate of photosynthesis O glucose leaves the leaf, increasing the rate of photosynthesis O CO₂ enters the leaf, decreasing the rate of photosynthesis O O₂ enters the leaf, increasing the rate of photosynthesis more chlorophyll is made, increasing the rate of photosynthesisarrow_forward
- Why are lemon eucalyptus good as a insecticides, are there any research for them to be effective?arrow_forwardPlease explain how during a drought, cacti are able to take water from the water storage cells of its stem to maintain hydration of the photosynthetic cells. - the more in depth answer the better pleasearrow_forwardThe seeds of many seasonal northern plant species will not germinate until they have been exposed to a period of extreme heat, like those in a forest fire. Suggest and support a plausible reason that plants would require fire as an adaptation.arrow_forward
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