Campbell Biology
12th Edition
ISBN: 9780135188743
Author: Urry
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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Chapter 39 Solutions
Campbell Biology
Ch. 39.1 - Prob. 1CCCh. 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 - Prob. 3CCCh. 39.4 - Prob. 1CC
Ch. 39.4 - Prob. 2CCCh. 39.4 - Prob. 3CCCh. 39.5 - Prob. 1CCCh. 39.5 - Chewing insects mechanically damage plants and...Ch. 39.5 - Many fungal pathogens get food by causing plant...Ch. 39.5 - Prob. 4CCCh. 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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- 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 occursarrow_forwardAn ________ is a plot showcasing a plant’s preferred light wavelengths which will result in maximum rates of photosynthesis.arrow_forwardWhy is a weed significant as a pest?arrow_forward
- Why some plants show wilting of their leaves, even when the soil is well watered?arrow_forwardWhich statement about C4 and CAM plants is TRUE? C4 and CAM plants have an additional carbon fixing enzyme C4 and CAM plants have reduced rates of cellular respiration. C4 plants separate initial carbon fixation from the light reactions There are no TRUE answers A pineapple is a C4 plant, agave is a CAM plant C4 plants open their stomata only at nightarrow_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_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 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_forwardDescribe one example of a plant chemical defense mechanism.arrow_forward
- The use of the C4 pathway for initial carbon fixation (CO2 into a 4C compound) I. occurs only in plants with specialized leaf anatomy containing bundle sheath cells surrounded by a ring of mesophyll cells II. occurs during the day in CAM plants III. reduces the problems of photorespiration by isolating the enzyme PEP carboxylase from high levels of dissolved O2arrow_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_forwardIf 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_forward
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