Campbell Biology in Focus (2nd Edition)
2nd Edition
ISBN: 9780321962751
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece
Publisher: PEARSON
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Chapter 42.3, Problem 2CC
Tobacco leaves contain nicotine, a poisonous compound that is energetically expensive for the plant to make. What advantage might the plant gain by using some of Hs
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Tobacco leaves contain nicotine, a poisonous compoundthat is energetically expensive for the plant to make.What advantage might the plant gain by using some ofits resources to produce nicotine?
2,4-D and 2,4,5-T are examples of hormonal-based herbicides. Name the phytohormone behind
this herbicides and how it works in suppressing weeds.
Photorespiration 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.
Chapter 42 Solutions
Campbell Biology in Focus (2nd Edition)
Ch. 42.1 - Why is the transfer of energy in an ecosystem...Ch. 42.1 - WHAT IF? You are studying nitrogen cycling on the...Ch. 42.1 - MAKE CONNECTIONS Use the second law of...Ch. 42.2 - Why is only a small portion of the solar energy...Ch. 42.2 - How can ecologists experimentally determine the...Ch. 42.2 - Prob. 3CCCh. 42.3 - If an insect that eats plant seeds containing 100...Ch. 42.3 - Tobacco leaves contain nicotine, a poisonous...Ch. 42.3 - WHAT IF? Detritivores are consumers that obtain...Ch. 42.4 - Prob. 1CC
Ch. 42.4 - Prob. 2CCCh. 42.4 - Prob. 3CCCh. 42.5 - Prob. 1CCCh. 42.5 - How do bioremediation and biological augmentation...Ch. 42.5 - Prob. 3CCCh. 42 - Prob. 1TYUCh. 42 - Which of these ecosystems has the lowest net...Ch. 42 - Prob. 3TYUCh. 42 - Prob. 4TYUCh. 42 - Which of the following has the greatest effect on...Ch. 42 - Prob. 6TYUCh. 42 - Prob. 7TYUCh. 42 - Prob. 8TYUCh. 42 - INTERPRET THE DATA Draw a simplified global water...Ch. 42 - SCIENTIFIC INQUIRY Using two neighboring ponds in...Ch. 42 - Prob. 11TYUCh. 42 - FOCUS ON ENERGY AND MATIER Decomposition typically...Ch. 42 - Prob. 13TYU
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- Herbicides that act by promoting photorespiration are lethalto C3 plants but do not affect C4 plants. Why is this so?arrow_forwardDepending on the environment the plant is in, more or less gas may be produced. Suggest a method for measuring the rate of gas production from the aquatic plant in Model 1.arrow_forwardC4 plants have higher photosynthetic rates than C3 plants because they have an additional CO2-fixing enzyme located in the bundle sheath cells.arrow_forward
- The C4 pathway utilizes less ATP than C3 pathway thus enabling C4 plants to adapt to tropical temperatures. True Falsearrow_forwardSome weedicides work by interfering with photosynthetic process. How does this happenarrow_forwardFor which kind of plant, and in which condition, would you expect to find leaves with the highest SLA (Specific Leaf Area)? Selected Answer: a shade-Intolerant plant growing in sun Answers: a shade-tolerant plant growing in shade a shade-tolerant plant growing in sun a shade-intolerant plant growing in sun a shade-intolerant plant growing in shadearrow_forward
- The C4 pathway utilizes less ATP than C3 pathway thus enabling C4 plants to adapt to tropical temperatures. Group of answer choices: True Falsearrow_forwardDiscuss the effect of air pollution on plants.arrow_forwardWhat effect would there be on C3 and C4 plants for increased oxygen levels? Why? Explain its effect in the mechanism of the pathway.arrow_forward
- Even though C4 plants require more ATP per CO₂ fixed, at higher temperatures, they are more efficient than C3 plants. Which of the following explains the effectiveness of C4 plants? contains a mutant form of Rubisco that does not bind to oxygen oxygen is prevented from entering the bundle-sheath cells where Rubisco is found Oduring the night, carbon dioxide is stored as malate so that stomata do not need to open during the day O photorespiration in C4 plants produces energy while in C3 plants, energy is consumedarrow_forwardWhat is different about CO2 fixation in tropical plants?arrow_forwardHow Will Plants FACE a High-CO2 Future?arrow_forward
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Photosynthesis & Respiration | Reactions | Chemistry | FuseSchool; Author: FuseSchool - Global Education;https://www.youtube.com/watch?v=3XIyweZg6Sw;License: Standard YouTube License, CC-BY