Biology: The Dynamic Science (MindTap Course List)
4th Edition
ISBN: 9781305389892
Author: Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher: Cengage Learning
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Chapter 8, Problem 10TYK
Animal
a. plants carry out photosynthesis and animals carry outrespiration.
b. G3P is found in the metabolic pathways of both animals andplants.
c. G3P is used by catabolic pathways when it is generated byphotosynthesis, and it is a product of an anabolic pathway incellular respiration.
d. light drives electron excitation.
e. the reactants of photosynthesis drive
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Explain briefly why the following ideas are false.
a. Photosynthesis is the food-making process done by plants.
b The Calvin cycle was called the dark reactions because it can only take place in the absence of light.
c. Photosynthesis can only be powered by sunlight.
The elctrons lost from the reaction center photosytem 1 are replaced by electrons from?
A) photosytem 2
B) CO2
C) H20
D) ATP
Photophoshorylation during photosynthesis differs from oixdative phosphorylation during cellular respiration in that?
A) energy is stored in the form of proton (H+) concentration difference
B) The final electron acceptor is NADP+ and not oxygen
C) It involves an electron transport chain
D) Generation of ATP is driven by a flow or protons (H+) through ATP synthase
In chloroplasts, ATP synthase?
A) Is found in the stroma
B) Catalyzes the Calvin cycle
C) Helps produce the concentration of gradient of H+
D) Phosphorylates ADP to ATP
Global warming due to the greenhouse effect may be?
A) Moderate by photosynthesis, which removes carbon dioxide from the atmoshpere
B) Reduced by the burning of fossil fuels, which removes oxygen from the atomosphere
C) Of little concern, since it is part of normal cycle for the planet
D) Made worse by photosynthesis, which adds carbon…
From a plant's perspective, the main purpose of photosynthesis is to
Group of answer choices
a)to produce sugars and oxygen for heterotrophs.
b)plants are not cognitive organisms and therefore we have no idea what the "purpose" of photosynthesis is for the plant.
c)to produce enough O2 gas for the plant to survive through the night.
d)make sugars, such as glucose, to use for building cell walls and for energy needed by the plant.
Chapter 8 Solutions
Biology: The Dynamic Science (MindTap Course List)
Ch. 8.1 - What are the two stages of photosynthesis?Ch. 8.1 - In which organelle does photosynthesis take place...Ch. 8.2 - What is the difference in function between the...Ch. 8.2 - Prob. 2SBCh. 8.2 - What is the difference between the linear electron...Ch. 8.3 - What is the reaction that rubisco catalyzes? Why...Ch. 8.3 - How many molecules of carbon dioxide must enter...Ch. 8.4 - Prob. 1SBCh. 8.4 - Prob. 2SBCh. 8.4 - How are carbon fixation and the Calvin cycle...
Ch. 8.5 - How are the reactants and products of...Ch. 8 - An organism exists for long periods by using only...Ch. 8 - Prob. 2TYKCh. 8 - Which of the following is a correct step in the...Ch. 8 - Prob. 4TYKCh. 8 - Prob. 5TYKCh. 8 - Which of the following statements about the C4...Ch. 8 - Prob. 7TYKCh. 8 - The oxygen released by photosynthesis comes from:...Ch. 8 - You bite into a spinach leaf. Which one of the...Ch. 8 - Animal metabolism and plant metabolism are related...Ch. 8 - Discuss Concepts Suppose a garden in your...Ch. 8 - Prob. 12TYKCh. 8 - Discuss Concepts Like other accessory pigments,...Ch. 8 - Prob. 14TYKCh. 8 - Prob. 15TYKCh. 8 - Prob. 16TYKCh. 8 - Photosynthesis directly opposes respiration in...Ch. 8 - Prob. 2ITDCh. 8 - Prob. 3ITDCh. 8 - Prob. 4ITD
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- The overall process of photosynthesis a. results in the reduction of CO2 and the oxidation of H2O. b. results in the reduction of H2O and the oxidation of CO2. c. consumes O2 and produces CO2. d. produces O2 from CO2.arrow_forwardChoose the incorrect statement for respiration a.It involves biological oxidation of organic as well as inorganic molecules b.Roots, stems and leaves respire at rates lower than animals c.Plant leaves utilise the 02 released during photosynthesis d.Carbon dioxide, water and energy are the products of respirationarrow_forwardYou have discovered a novel peptide that, when administered to plant cells, spontaneously inserts into the thylakoid membranes and forms a channel that lets protons cross the membrane. You treat plant cells growing normally with your peptide. Which of the following statements correctly describes the effect on photosynthesis shortly after the addition of the peptide? Select all that are true. a. The rate of Glyceraldehyde 3-phosphate synthesis will decrease b. The rate of oxygen production will be unaffected c. The rate of Glyceraldehyde 3-phosphate synthesis will increase d. The rate of oxygen production will decrease e. The rate of oxygen production will increase f. The rate of Glyceraldehyde 3-phosphate synthesis will be unaffectedarrow_forward
- You are a marine biologist sampling an offshore ecosystem. One day, you find a red organism floating in one of your nets. It has structures that resemble the leaves and stems of a plant. You hypothesize that this organism might be photosynthetic. Describe how you could test this hypothesis using a pH indicator solution. a. In detail, describe the steps you would take and the reactants of photosynthesis required. b. What change in pH would indicate that the organism was undergoing photosynthesis, and how would the indicator respond?arrow_forwardCompare and contrast cellular respiration and photosynthesis. A. Photosynthesis stores energy in NADH while cellular respiration stores energy in ATP. B. Respiration is catabolic while photosynthesis is anabolic. C. Only respiration creates ATP. D. Photosynthesis releases C02 while respiration releases 02.arrow_forwardSince carotenoids are part of the _________, their electrons are not passed on when they get excited. A) electron carriers of the photosystem B) electron transport chain C) antenna complex of the photosystem D) reaction center of the photosystemarrow_forward
- In the photosynthetic formation of ATP, the enzyme ATP synthase couples the synthesis of ATP to: A. the diffusion of protons B. the reduction of NADP+ C. the excitation of chlorophyll D. the reduction of chlorophyll E. CO2 fixationarrow_forwardThe ultimate source of energy in our planet is sunlight. In the first stage of photosynthesis, light energy is captured in chlorophyll-containing reaction centers (PSII and PSI). What is the first step in the capture of light energy at PSII? a. The energy carriers ATP and NADPH + H+ are synthesized. b. CO2 reacts with the C5 sugar ribulose-1,5-bis-phosphate in the first step of the Calvin cycle. c. Starch is synthesized. d. H2O is photolyzed and its electrons are captured by special chlorophyll molecules. e. Sucrose is synthesized from glucose and fructose.arrow_forwardCarbon dioxide is required for which of the following processes in photosynthesis? a) the Calvin cycle b) the splitting of water c) the absorption of water d) the production of ATP e) the light reactionarrow_forward
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