Campbell Essential Biology (7th Edition)
7th Edition
ISBN: 9780134765037
Author: Eric J. Simon, Jean L. Dickey, Jane B. Reece
Publisher: PEARSON
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Chapter 20, Problem 7SQ
According to the energy pyramid, why is eating grain-fed beef a relatively inefficient means of obtaining the energy trapped by photosynthesis?
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Do you think it's possible to capture energy from photosynthesis for human use? (Simple answer sentence)
When discussing why the rate of photosynthesis did not increase at higher light intensities, the investigator mentioned the possibility that high light intensities could damage chlorophyll, which would result in a decrease in oxygen production. Which of the following accurately explains the role of chlorophyll in oxygen production during photosynthesis and why damage to chlorophyll would results in lower oxygen production?
Select one or more:
a. Chlorophyll participates in carbon fixation during the Calvin Cycle. During this process, oxygen molecules are formed.
b. Chlorophyll captures energy from sunlight and releases high energy electrons that enter the electron transport chain in the Calvin Cycle. During this process, oxygen molecules are formed.
c. Chlorophyll participates in carbon fixation during the light reactions. During this process, oxygen molecules are formed.
d. Chlorophyll captures energy from sunlight and releases high energy electrons that enter the electron…
What is the difference between photosynthesis rate and net photosynthesis rate?
Chapter 20 Solutions
Campbell Essential Biology (7th Edition)
Ch. 20 - Prob. 1SQCh. 20 - According to the concept of competitive exclusion,...Ch. 20 - Prob. 3SQCh. 20 - Prob. 4SQCh. 20 - Why are the top predators in food chains most...Ch. 20 - Over a period of many years, grass grows on a sand...Ch. 20 - According to the energy pyramid, why is eating...Ch. 20 - Local conditions, such as heavy rainfall or the...Ch. 20 - Prob. 9SQCh. 20 - Prob. 10SQ
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Most plants store excess energy from photosynthesis. Name some times when recovery of stored energy may occur. Does energy recovery always occur in the same sites where photosynthetic capture occurred?arrow_forwardIn a corn field in Oklahoma, the net primary productivity is 150 grams/m2/day and the respiration loss is 33.3 percent. The insolation energy is 950 calories/cm2/day and one gram of corn is equivalent to 1700 calories. Find the gross productivity of the corn. Using the NPP, calculate the efficiency of photosynthesis for the corn.arrow_forwardPhotosynthesis is a process that involves transferring blank energy into blank energy ?arrow_forward
- Chloroplasts contain chlorophyll and carotenoids. Chlorophyll directly absorbs light for use in photosynthesis. Carotenoids absorb light and transfer the energy from light to chlorophyll. The efficiency of photosynthesis varies with the wavelengths of the light that illuminates the chloroplasts. In an experiment to study the relationship between the incoming light wavelengths and the chemical reactions of photosynthesis using a species of green algae, a researcher labeled the CO2 supply to the algae with 14C, and the H2O with 18O. Which of the following results is expected? More 14C is found in the algae when it is illuminated by green light than when it is illuminated by blue-violet and red light. More 18O is found in the algae when it is illuminated by green light than when it is illuminated by blue-violet and red light. More 14C is found in the algae when it is illuminated by blue-violet and red light than when it is illuminated by green light. More 18O is found in the algae when…arrow_forwardMatter is constantly cycled between living and non living parts of the environment. Processes like photosynthesis and respiration allow the carbon cycle to regenerate needed substances by recycling earth’s atoms. A diagram of the carbon cycle is shown. Each arrow represents a process in the cycle. Which explanation best describes the process in the cycle. Which explanation best describes the process that occurs at the arrow marked B? A) plants use carbon dioxide from the atmosphere in the process of photosynthesis to produce glucose B) plants release carbon dioxide into the atmosphere in the process of photosynthesis to produce glucose C) plants use carbon dioxide from the atmosphere in the process of cellular respiration to convert glucose to atp energy D) plants release carbon dioxide into the atmosphere in the process of cellular respiration to convert glucose to atp energyarrow_forwardAccording to the pyramid of production, why is eating grain-fed beef a relatively inefficient means of obtaining the energy trapped by photosynthesis?arrow_forward
- What is the primary and secondary chemical energy generated and where? (In regards to photosynthesis)arrow_forwardIn a Kansas wheat field, the insolation energy is 5,750,000 calories/m2/day. The gross productivity of the wheat is 0.038 grams/cm2/day, and the respiration loss is 22 percent. One gram of wheat is equivalent to 850 calories. Calculate the net primary productivity of the wheat. Find the efficiency of photosynthesis by the wheat.arrow_forwardPhotosynthesis is the basis for food production on Planet Earth. To fill in the blanks below, choose among the following terms: Word Bank: Glucose, H₂O, O2, CO2, sunlight In Photosynthesis, 6 molecules of + 6 molecules of + + 6 molecules of produce 1 molecule ofarrow_forward
- When you will consider an organism as "Autotroph"? Can you mention why they are capable of doing photosynthesis? What would have happened if there were no processes for "photosynthesis"? Summarize "what happens during photosynthesis" using one single sentence. Why do you think it is advantageous to learn about "the environmental factors that influence the plants"?arrow_forwardAs the sun shines on Earth, plants use its energy to complete the process of photosynthesis. Energy is transformed during the process into chemical energy in the form of sugars, such as carbohydrates. However, the energy available at top consumers is much less than that produced by autotrophs. Why is this so?arrow_forwardCompare and contrast oxidative phosphorylation and photosynthesis.arrow_forward
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