Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Chapter 8, Problem 32CTQ
Imagine a sealed terrarium containing a plant and a beetle. How does each organism provide
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Chapter 8 Solutions
Biology 2e
Ch. 8 - Figure 8.6 On a hot, dry day, plants close their...Ch. 8 - Figure 8.16 What is the source of electrons for...Ch. 8 - Figure 8.18 Which of the following statements is...Ch. 8 - Which of the following components is nor used by...Ch. 8 - What two main products result from photosynthesis?...Ch. 8 - In which compartment of the plant cell do the...Ch. 8 - Which statement about thylakoids in eukaryotes is...Ch. 8 - Predict the end result if a chloroplast’s light-,...Ch. 8 - How are the NADPH and GA3P molecules made during...Ch. 8 - Which of the following structures is not a...
Ch. 8 - How many photons does it take to fully reduce, one...Ch. 8 - Which complex is not involved in the establishment...Ch. 8 - From which component of the light-dependent...Ch. 8 - Three of the same species of plant are each grown...Ch. 8 - Plants containing only chlorophyll b are exposed...Ch. 8 - Which molecule must enter the Calvin cycle...Ch. 8 - Which order of molecular conversions is correct...Ch. 8 - Where in eukaryotic cells does the Calvin cycle...Ch. 8 - Which statement correctly describes carbon...Ch. 8 - If four molecules of carbon dioxide enter the...Ch. 8 - What is the overall outcome of the light reactions...Ch. 8 - Why are carnivores, such as lions, dependent on...Ch. 8 - Why are energy carriers thought of as either...Ch. 8 - Describe how the grey wolf population would be...Ch. 8 - How does the closing of the stomata limit...Ch. 8 - Describe the pathway of electi on transfer from...Ch. 8 - What are the roles of ATP and NADPH in...Ch. 8 - How and why would the end products of...Ch. 8 - Why is the third stage of the Calvin cycle called...Ch. 8 - Which part of the light-independent reactions...Ch. 8 - Why does it take three turns of the Calvin cycle...Ch. 8 - Imagine a sealed terrarium containing a plant and...Ch. 8 - Compare the flow of energy with the flow of,...
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- Fungi (as well as bacteria and various animals) are major decomposers. What would the world be like if there were no decomposers of any kind?arrow_forwardResearchers have developed a biofuel that is an alcohol-based gasoline alternative made from non-food resources such as algae. The biofuel can be combined with gasoline to increase the energy outputs in automobile engines. How will the use of biofuel change how humans use energy resources? Biofuel will decrease the use of gasoline in the automobile industry, decreasing the need for nonrenewable energy resources. Biofuel will decrease the production of algae in the automobile industry, decreasing the need for nonrenewable energy resources. Biofuel will decrease the amount of fuel for automobiles, increasing the need for renewable energy resources. Biofuel will decrease the number of automobiles sold each year, increasing the need for renewable energy resources. Finish O v i 12:56 hp & 8. 9-arrow_forward(a) A farmer wants to choose an area, A or B, to plant vegetables. He takes a sample of the top soil from each area to a soil-testing laboratory. The results of the soil composition tests are shown in Figure 2. (ii) (i) Humus Water Clay Silt Fine sand Coarse sand Gravel 1000 B Figure 2. Results of soil composition tests Water Clay Fine sand Coarse sand Gravel Based on the results presented in Figure 2, suggest which area would be more suitable for the farmer to plant vegetables. Give ONE reason to support your answer. (2 marks) Using the following list of apparatus and materials, outline the procedure for obtaining the results presented in Figure 2. Two large measuring cylinders; stirring rod; soil samples in petri dishes; a beaker of water; balance (2 marks)arrow_forward
- Subject (Biology - Ecology) Question #1. How does an organism stay alive in the world? And what happens to an energy as it goes around?arrow_forwardFood webs are helpful diagrams to understand the relationships of organisms within a biological community. Answer the following questions using the food web below. Baleen whale Smaller toothed Sperm whale whales Penguins Elephant seal Leopard seal Other birds Fish Other seals Squid Krill Other herbivorous zooplankton Carnivorous zooplankton Phytoplankton The phytoplankton transforms light energy into 100,000 kcal (by photosynthesis of course). How much energy would you expect to be available in the elephant seal's food if the elephant seal eats the squid, which eats krill, which eats phytoplankton? O 100 kcal 100,000 kcal 10,000 kcal 10 kcal 1,000 kcalarrow_forwardWhich of the following is NOT a question suitable for scientific inquiry? Select an answer a Which fossil fuel is the dirtiest to burn? b Is it ethical to put heavily polluting industries in low-income neighborhoods? c Does the burning of fossil fuels contribute to global warming? d Does the use of renewable energy sources contribute to ozone depletion?arrow_forward
- Question 1 Distinguish the anatomical differences between grass species that grow in tropical regions and those that grow in temperate regions. (13) Question 2 2.1How does the digestibility of C3 and C4 grass species differ? (12) 2.2 Explain in your own words how do CO2 affects the nutrition of C4 grass? (15) Question 3 3.1 Do protein levels have an influence the nutrition of C3 and C4 garrow_forwardImagine a disease spreads among the desert grasshoppers and most of them die off. How would the grasshoppers’ disappearance affect the food chain and its organisms? Remember that the grasshopper eats some organisms and is also eaten by other organisms.arrow_forwardCan you consider a living thing that does not seem to interact with other living things as a component of an ecosystem? Why or why not? Give a specific example to illustrate.arrow_forward
- (d) One cup of the algae above stores 43 calories of energy. There happens to be 6,750,000 cups of algae available in the area that the seal lives in. Knowing that one cup equals 128 grams, and the seal must consume 7500 calories per day... ) Calculate how much energy would be transferred to the seal if all of the energy in the algae population available in that area made its way to the seal through the food web above. (ii) Assume the seal consumes its daily calories per day. Describe how many days the seal would be able to live off of the energy transferred to it by the algae.arrow_forwardYou have two identical bags and fill them with the same amount and type of leaves. You put the identical bags in two different areas of a river. After several weeks, one set of leaves has almost disappeared and the bag is full of organisms. The other set of leaves is still mostly whole and the bag has few organisms in it. Questions: What are some ways the two different areas of the river could be different? How might these differences explain why the leaf packs in one area have more organisms than the leaf packs in another area?arrow_forwardA scientist built a model ecosystem that contains air, plants, and animals that eat those plants. The model ecosystem is sealed so no material can get in or out, but the glass sides allow light in when the scientist switches the light on. When the scientist switches the light off, the model ecosystem is in the dark. The number of energy storage molecules in the plants and animals inside the model ecosystem started out high. Then the number of energy storage molecules began to decrease. Was the decrease because the light was switched on or because it was switched off? What happened to the amount of carbon dioxide in the air? *arrow_forward
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