Principles of Biology
2nd Edition
ISBN: 9781259875120
Author: Robert Brooker, Eric P. Widmaier Dr., Linda Graham Dr. Ph.D., Peter Stiling Dr. Ph.D.
Publisher: McGraw-Hill Education
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Chapter 7, Problem 2CBQ
Summary Introduction
To analyze:
The usefulness of modifying C3 plants into C4 and CAM plants and genes that might be introduced for this modification.
Introduction:
The photosynthesis is required by the plant to harvest the light energy from the sunlight and convert the carbon dioxide present in the atmosphere into a usable form of carbohydrates. The carbohydrate synthesized by the plant is glucose that is stored in the form of starch.
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Agricultural biotechnologists have developed genetically modified tomato plants in which ethylene production is blocked. Why might such a plant be valuable to tomato growers?
Why would a C4 plant have a competitive advantage at high temperatures?
a) There is more rubisco in all the cells of C4 plants.
b) C4 plants use rubisco to fix carbon.
c) C4 plants use PEP carboxylase to fix carbon.
d) C4 plants have higher rates of photorespiration.
Describe how CAM plants are different from C3 and C4 plants and why they have this adaptation. Where CAM plants are typically found?
Chapter 7 Solutions
Principles of Biology
Ch. 7.1 - Which types of organisms carry out cellular...Ch. 7.1 - Prob. 1BCCh. 7.1 - Prob. 2CCCh. 7.1 - Prob. 1TYKCh. 7.1 - If you were traveling from the cytosol to the...Ch. 7.1 - Prob. 3TYKCh. 7.2 - Prob. 1CCCh. 7.2 - Prob. 2CCCh. 7.2 - What is the advantage of having different pigment...Ch. 7.2 - Prob. 4CC
Ch. 7.2 - Prob. 5CCCh. 7.2 - Prob. 1TYKCh. 7.2 - Prob. 2TYKCh. 7.2 - What is the purpose of cyclic...Ch. 7.3 - Prob. 1CCCh. 7.3 - Prob. 1TYKCh. 7.3 - Prob. 2TYKCh. 7.4 - Prob. 1CCCh. 7.4 - Prob. 1TYKCh. 7.4 - Prob. 2TYKCh. 7.5 - Prob. 1CCCh. 7.5 - Prob. 1BCCh. 7.5 - What are the advantages and disadvantages for C3,...Ch. 7.5 - Prob. 1TYKCh. 7.5 - An evolutionary adaptation to minimize...Ch. 7 - The water necessary for photosynthesis is split...Ch. 7 - Prob. 2TYCh. 7 - Prob. 3TYCh. 7 - Prob. 4TYCh. 7 - During the first phase of the Calvin cycle, carbon...Ch. 7 - Prob. 6TYCh. 7 - Prob. 7TYCh. 7 - Prob. 8TYCh. 7 - Prob. 9TYCh. 7 - Plants commonly found in hot and dry environments...Ch. 7 - What are the two stages of photosynthesis? What...Ch. 7 - What is the function of NADPH in the Calvin cycle?Ch. 7 - A principle of biology is that living organisms...Ch. 7 - Discuss the advantages and disadvantages of being...Ch. 7 - Prob. 2CBQ
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- Some crop plants are modified genetically by manipulating their genes. How are they made beneficial?arrow_forwardA mutation causes the vascular cambium in a plant to stop working How does this impact cellular respiration? ANSWER CHOICES ARE IN THE PHOTO. thanksarrow_forwardThe C3 pathway can occur in which of the following plants? A. cypresss B.cactus C.banana D.applesarrow_forward
- By looking at a plant externally can you tell whether a plant is C3 or C4 ? Why and how?arrow_forwardThe roots of legumes, such as peas and beans, have special nodules that are home to large numbers of bacteria. What benefit do these bacteria provide to the plant? What do they receive in exchange?arrow_forwardWhich type of plants cannot be used for preparing artificial seeds?Can the artificial seeds be stored in cryopreservation? Why?arrow_forward
- Genetically modified plants can be produced by transferring desired: Cytoplasm Carbohydrates Genes Proteinsarrow_forwardIt is the term referring to the characteristic leaf structure of C4 plants that enables them to outperform C3 plants in an environment that has high O2 concentration and/or temperature. Unlike C3 and CAM plants, C4 plants, such as corn and sugarcane, have leaves with vascular bundles that are surrounded by a chloroplast-rich vascular bundle sheath, which is further surrounded by the spongy mesophyll.arrow_forwardGive two examples (names) for each: C3, C4 and CAM plants. In what environments do you expect to find a C3, C4 or a CAM plant?arrow_forward
- Which organism is used in the genetic engineering of plants? a. T. aquaticus b. B. thuringiensis c. P. flourescens d. E. coli e. A. tumefaciensarrow_forwardA nine-year research and experimentations have successfully developed rice plants with golden hue kernels instead of the usual white kernels. What is the advantage of this modified rice plant? Select one: To make the plant become resistant to herbivores. To provide sufficient rice produce due to its shorter cycle. To add nutritional value to the rice kernels. To allow easy harvesting and processing.arrow_forwardWhich of the following descriptions about C4 and CAM plants is not correct? Select one: a. CAM plants use CO2 released from organic compounds during the day b. C4 and CAM plants both close stomata during the day in hot and dry climates. c. in C4 plants, PEP carboxylase present in bundle-sheath cells incorporate CO2 into C4 compounds d. CAM plants fix CO2 at night e. C4 plants use PEP carboxylase to fix CO2 even when CO2 concentrations are lowarrow_forward
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