Campbell Biology
12th Edition
ISBN: 9780135188743
Author: Urry
Publisher: PEARSON
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Chapter 39.3, Problem 1CC
If an enzyme in field-grown soybean leaves is most active at noon and least active at midnight is its activity under circadian regulation?
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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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- The herbicide dinoseb, which was removed from the market many years ago, killed plants by uncoupling oxidative phosphorylation. Ironically, plants have embedded in the inner membrane of their mitochondria a protein named the “uncoupling protein” that essentially can carry out the same process caused by dinoseb. The mechanism of uncoupling oxidative phosphorylation involves which of the following scenarios. A. Excess electrons oxidize lipids in the mitochondrial membranes, thus destroying the electron transport chain B. Excessive oxygen is consumed via reduction to water, thus depriving the mitochondria of the ability to carry out phosphorylation that requires oxygen C. The membrane selectivity required to maintain a proton gradient is altered so the potential for driving ATP synthesis via chemiosmosis is degraded D. Uncoupling oxidative phosphorylation kicks a cell into a fermentative pathway that cannot supply sufficient ATParrow_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 of jckplant.They have supplemented the medium with BAP but there is another student suggested that hundred percent shooting efficiency will be obtained when the the culture media is suplemented BAP and NAA.From your point of view, state which option will you choose and explain why?arrow_forwardWhat is the advantage of using ATP as a common energy source?Another way of asking this question is, “Why does ATP provide anadvantage over using a bunch of different food molecules?” For example,instead of just having a Na+/K+-ATPase in a cell, why not have manydifferent ion pumps, each driven by a different food molecule, like aNa+/K+-glucosase (a pump that uses glucose), a Na+/K+-sucrase (a pumpthat uses sucrose), a Na+/K+-fatty acidase (a pump that uses fatty acids),and so on?arrow_forward
- Show the pathway for the biosynthesis of pectin compound in plant using glucose or galactose as precursorsarrow_forwardplease let it be indept and not in a table form Describe the difference between catabolism and anabolism in plantsarrow_forwardA glucose-fed yeast cell is moved from an aerobic environment to an anaerobic one. For the cell to continue to generate ATP at the same rate, approximately how much glucose must it consume in the anaerobic environment compared with the aerobic environment?arrow_forward
- ENUMERATE the protein amino acid produced by plants from the following precursors. Ribulose-1,5-bisphosphate/ Calvin cycle Pyruvate a-ketoglutarate Oxaloacetate Phosphoribosylpyrophosphate Shikimic acid pathwayarrow_forwardFlippase and scramblase play important roles in the movement of lipid molecules across a membrane bilayer. Match each characteristic with its associated phospholipid translocator. Flippase Scramblasearrow_forwardI am trying to figure out these four things. What is the independent variable, what is the dependent variable, what are the controlled variables and why this experiment doesn’t use a control.arrow_forward
- What is meant by: “The hierarchy of cell sorting?” b) Discuss this in the context of the thermodynamic model of cell interactions (use examples)arrow_forwardWhat do the yeasts provide for the fermentation chambers?arrow_forwardDescribe the use of simple paths to determine the change in these by more complicated paths (ie burning sugar to CO2 and H2O can be used to determine the change in enthalpy of the conversion of sugar to CO2 and H2O by the more complicated processes of glycolysis, CAC and oxidative phosphorylation).arrow_forward
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