carbon dioxide absorption is an appropriate indicator of photosynthesis because

E) helps transport H+ against the concentration gradient. Disrupting microfilament formation would affect the it is difficult to observe individual chromosomes during interphase because, they are in the form of long, thin strands and have not condensed yet. D) They make it possible for the plant to use the Calvin cycle at night. B) The greenhouse effect is exacerbated by the use of fossil fuels. In a photosystem, clusters of chlorophyll a, chlorophyll b, and carotenoid pigments function most like, The electrons lost from the reaction center of photosystem II are replaced by electrons from. A) It takes several minutes for the pigment electrons to become excited. According to this figure, how do H+ ions make their way from the stroma to the thylakoid interior? c) carbon dioxide. ignore? A) Chlorophyll a reflects green light. You're conducting an experiment to determine the effect of different wavelengths of light on the absorption of carbon dioxide as an indicator of the rate of photosynthesis in aquatic ecosystems. D) the final electron acceptor is NADP+ and not oxygen. stroma. D) include only the green plants. E) Burning wood contributes more to acid rain than burning fossil fuels. C) Pigments only lose energy in the excitation process. E) are only found on land. C) regeneration of NADP+ D) the final electron acceptor is NADP+ and not oxygen. one? 32) Which of the following statements about the absorption of photons by pigment molecules is true? This process begins with the absorption of light by specialized organic molecules, called pigments, that are found in the chloroplasts of plant cells.Here, we'll consider light as a form of energy, and we'll also see how pigments - such as the chlorophylls . C) orange 19) The light reactions occur in the ________, while the Calvin cycle occurs in the ________. If the concentration of carbon dioxide is increased, the rate of photosynthesis will therefore increase. D) production is associated with events taking place on the inner mitochondrial membrane. b. Cochlear duct NADH The light reactions of photosynthesis use _____ and produce _____. A) has P700 at its reaction center. Two turns B) CO2 is needed to complete the light reactions. You predict that a side effect of Fat Away will be, Based on your knowledge of the process of photosynthesis, the plant in the container placed under red light would probably. The concentration of CO2 will decrease as plants use it in the light-dependent reactions. Increasing the distance from the light source decreased the rate of photosynthesis. . Carbon dioxide initially combines with RuBP, and RuBP is regenerated to continue the Calvin cycle. b) While it did have access to light before you left, the plant stored energy in the form of sugars or starch, and it was able to derive energy from those during your vacation. 27) Which of the following colors contributes the least energy to photosynthesis? How might global climate change affect the aquifer? Container A is placed under normal sunlight, B under green light, and C under red light. Unlike cellar respiration, photosynthesis occurs in. Assume the ball is made out of a material that has a linear coefficient of expansion \alpha of 75.2106/C.75.2 \times 10^{-6} /^{\circ} \mathrm{C}.75.2106/C. D) chemiosmosis. D) catalyze the incorporation of carbon atoms into RuBP. Expert Answer 62) The greenhouse effect is A) reduced by photosynthesis, which removes carbon dioxide from the atmosphere. the number of chloroplasts in the cell decreases as the temperature increases, the rate of oxygen production is greatest in section m. Which of the following activities happens within the stroma? In recent decades, the CO 2 fertilizer (such as AGROSOL, a carbon dioxide gas fertilizer) was applied to promote field condition (open space). A) Plants require carbon dioxide, water, and sunlight to make glucose. Purple sulfur bacteria are organisms capable of photosynthesis. A) a fuel for photosynthesis. B) lack mitochondria but have chloroplasts. Explain. Light energy is required to drive the transfer of the electrons to NADP+. c) oxygen. 35) How do the reaction centers of photosystem I and II differ? D) Green helps plants blend into their environment as a sort of camouflage. B) shuttle electrons along in a series of redox reactions. She then systematically changed the distance from the beaker to the lamp. D) absorb more CO2 than the plants under the green light. . make glucose or other organic molecules. A) power sugar synthesis during the Calvin cycle. B) Photosynthesis involves only oxidations, while respiration involves only reductions. C) is found in the stroma. c) the production of sugars. Small aquatic plants are placed into three containers of water mixed with carbon dioxide. Which of the following statements describes what happens in the photosystems? Which of the following statements correctly explains this observation? When the carbon dioxide concentration decreases, the color of the indicator solution also changes. B) is of benefit to the plant since it breaks down rubisco. C) have mitochondria but do not have chloroplasts. B) is broken down by carbon dioxide. the Calvin cycle depends on products of the light reactions. stroma . 2. photosynthetic prokaryotes that lived inside eukaryotic cells, Photophosphorylation during photosynthesis differs from oxidative phosphorylation during cellular respiration in that. B) donation of excited electrons by chlorophyll b to a primary electron acceptor centers were inactivated by a toxin? D) NADP+ is oxidized to NADPH. Carbon dioxide is particularly influential in regulating pH. D) photosystem I. C) concentrated in a portion of the leaf called the stroma. The electrons lost from the reaction center of photosystem I are replaced by electrons from A) CO2. b) orange. e. Membranous labyrinth NADP+ is reduced during the light reactions, and these electrons are later used to reduce CO2 to glucose in the Calvin cycle. Hall, William C. Rose. . . If the rate of photosynthesis increases, the amount of carbon dioxide in the environment will decrease and vice versa. C) Because of their short growth period and self-regeneration, willows are more viable as a source of potential power than the trees in most natural forests. When the carbon dioxide concentration decreases, the color of the indicator solution also changes. the interval (,)(-\infty, \infty)(,). E) CO2 energizes electrons in the electron transport system. Arsenic is a poison that binds to a molecule needed to build acetyl CoA. b) G3P (C3H6O3) You're conducting an experiment to determine the effect of different wavelengths of light on the absorption of carbon dioxide as an indicator of the rate of photosynthesis in aquatic ecosystems. What is the role of NADP+ in photosynthesis? A) stroma Occurs in the chloroplast: CC, L Container A is placed under normal sunlight, B under green light, and C under red light. C) NADH How do the reaction centers of photosystem I and II differ? E) The principal electron carrier in photosynthesis is NADPH; the principal electron carrier in respiration is NADH. C) H2O. produce organic molecules from inorganic molecules. B) produce organic molecules from inorganic molecules. D) Most of the young trees would die within a few years. Check all that apply B) H2O. D) the bottom of the electron transport chain. Which of the following colors contributes the least energy to photosynthesis? Which of the following are produced during the light reactions of photosynthesis? c) glucose, ADP, NADP+. A) They help the plant conserve water and synthesize glucose efficiently under hot, dry conditions. 55) What is the main adaptive advantage of the C4 and CAM photosynthesis strategies over the C3 The containers are observed for a 24-hour period. Small aquatic plants are placed into three containers of water mixed with carbon dioxide and indicator solution. Which of the following are photoautotrophs? . c) NADPH . A) glucose, ADP, NADP+ B) chlorophyll a d) oxidation-reduction (redox) reactions, When chloroplast pigments absorb light, _____. 36) Clusters of light-gathering pigments in a photosystem The Calvin cycle constructs ________, an energy-rich molecule that a plant cell can then use to make glucose or other organic molecules. Normal human gametes carry ____ chromosomes. b) the release of O2 into the atmosphere. Small aquatic plants are placed into three containers of water mixed with carbon dioxide. d) Glucose (C6H12O6) A) cellular respiration. ________ cells in leaves are specialized for photosynthesis. Carbon dioxide absorption is an appropriate indicator of photosynthesis because:_________.A) CO2 is needed to complete the light reactions.B) The energy in CO2 is used to produce ATP and NADPH.C) Plants produce oxygen gas by splitting CO2.D) CO2 is needed to produce sugars in the Calvin cycle. Involves lights: L D) a source of electrons for chemiosmosis. ATP. Occurs in an animal cell: G, CAC, ETC 48) Mitochondria transfer ________ energy from ________ to ATP; chloroplasts transform ________ . She placed one beaker in the shade and the other beaker beside a fluorescent lamp. c) are found in the roots of plants. The photosynthetic pigment chlorophyll is anchored in the thylakoid membrane. A by-product of cellular respiration is heat. a) CO2 is needed to complete the light reactions. food . E) absorb more CO2 than the plants under the green light. 6CO2 + 6HO2 ---> C6H12O6 + 6O2 (carbon dioxide + water -->sugar + oxygen), -occurs in thylakoids -uses light energy to convert water to oxygen -light is absorbed by chlorophyll in thylakoid membranes, -occurs in the stroma -requires ATP- made from light reactions -converts CO 2 to sugars. B) Chlorophyll a absorbs green light. This recombination of maternal and paternal genetic material is a key feature of meiosis. D) Most of the young trees would die within a few years. C) is attributable to high CO2 levels. Which of the following are produced by reactions that take place in the thylakoids and consumed by reactions in the stroma? in which of the products of photosynthesis will the radioactive H and O show up? A) H and O both in glucose B) H in glucose; O in water C) H in water; O in glucose D) H in glucose and water; O in O2 E) H in glucose and water; O in water and O2, Which of the following statements concerning the role of redox reactions in photosynthesis and cellular respiration is true? d) the membrane functions as a mitochondrial membrane but at night. b) chemiosmosis can occur across the thylakoid membrane. food . because photosynthesis decreases as a plant is moved further away from a light source or three? C) The greenhouse effect will decrease the average temperature of the planet. It has been argued that cutting old-growth forests and replacing them with plantations of young trees would help to alleviate the threat of global greenhouse warming. B) Each preferentially absorbs slightly different wavelengths of light. energy into the chemical energy of ATP. Since the Earth's atmosphere formed, it seems to have always contained carbon dioxide in varying amounts. B) made worse by photosynthesis, which adds carbon dioxide to the atmosphere. b. Produces molecules of NADPH: L solution. d) 3 CO2 a three-carbon molecule l. Tympanic membrane (eardrum) B) CO2 is needed to complete the light reactions. water . b. E) found throughout the plant. What do plants do with the sugar they produce in photosynthesis. . How many "turns" of the Calvin Cycle are required to produce 1 molecule of glucose? Which of the following is part of the light reaction? A) moderated by photosynthesis, which removes carbon dioxide from the atmosphere. What is the role of oxygen in cellular respiration? D) four, 64) Which of the following has been a major source of ozone destruction over the past 50 years? What provides electrons for the light reactions? B) glucose, ADP, NADP+, CO2 CO2 is needed to produce sugars in the Calvin cycle. Water that is filtered out of the blood by the kidneys is returned to the body through the action of aquaporins. containers are observed for a 24-hour period. . . She placed one beaker in the shade and the other beaker beside a fluorescent lamp. A student prepared two beakers with identical sprigs of a water plant as shown below. b) the stoma. A) occurs when carbon and oxygen from CO2 are incorporated into an organic molecule. a) forms NADPH to be used in the Calvin cycle. In fermentation _____ is reduced and _____ is oxidized. 61) What is the main adaptive advantage of the C4 and CAM photosynthesis strategies over the C3 strategy? C) does not have a reaction center. like respiration in that absorption of carbon dioxide as an indicator of the rate of photosynthesis in aquatic ecosystems. Photoautotrophs A) make sugar by using organic raw materials. light c) phaser. D) eight, 52) The Calvin cycle constructs ________, an energy-rich molecule that a plant cell can then use to B) Photosynthesis is ultimately powered by light energy and respiration by the chemical energy of fuel molecules. During the dark reactions, carbon dioxide is bound to ribulose bisphosphate, a 5-carbon sugar with two attached phosphate groups, by the enzyme ribulose bisphosphate carboxylase. Plant leaves are also able to absorb and release water through the stomata. Stores energy in a form that can drive cellular work. A) donation of excited electrons by chlorophyll a to a primary electron acceptor Two turns of the Calvin cycle can lead to the production of one molecule of glucose as the three-carbon precursor, glyceraldehyde-3-phosphate, is produced with each turn of the cycle. In simple summary form, the input of the Calvin cycle for every product is _____, and the output is _____ used for glucose synthesis. a) carbon dioxide. Estimate the mass of the crate. 2003-2023 Chegg Inc. All rights reserved. B) chloroplasts; mitochondria . c. CO2 is needed to produce sugars in the Calvin cycle. b) a free, energized electron. Where in the chloroplast is chlorophyll found? D) requires the input of NADPH. B) supplies the cell with ATP. C) is done by the Calvin cycle. Cellular respiration: for glycolysis, put G; for citric acid cycle, put CAC; and for electron transport chain, put ETC.Photosynthesis: for light reactions, put L; and for Calvin Cycle CC. hot, dr D) nuclear, 25) The full range of electromagnetic energy is called the ________ spectrum. What important fact does this argument ignore? Based on your knowledge of the process of photosynthesis, the plant in the container placed under red light would probably A) absorb no CO2. formation of waste products in the form of O2. d) stroma . . B) NADPH is oxidized to NADP+. A) Photosynthesis involves only reductions, while respiration involves only oxidations. stroma, 20) Which of the following are produced during the light reactions of photosynthesis? d) reduction of NADP+. The movement of H+ across a membrane down its concentration gradient, Carbon dioxide absorption is an appropriate indicator of photosynthesis because. A) H2O c) the membrane brings chlorophyll closer to the light. 42) The electrons lost from the reaction center of photosystem II are replaced by electrons from C) In photosynthesis, carbon dioxide is oxidized to form sugar, while in respiration, sugar is reduced to form carbon dioxide. The containers are observed for a 24-hour period. Place the letter of your choice in the space provided. color of the indicator solution also changes. A) 6 CO2 + 6 H2O + sunlight C6H12O6 + 6 O2. Energy is never created or destroyed. D) are used in the electron transport chain to pump H+ into the thylakoid space. A redox reaction involves the transfer of. . kinetic See Page 1. What type of gas would you expect to find in these bubbles? B) H in glucose; O in water What transports electrons from the light reactions to the Calvin cycle? AP BIO - Unit 2 Cell Structure & Function, DH 126 Chapter 7 terms- fr 35-78-Soft Tissues, David N. Shier, Jackie L. Butler, Ricki Lewis, John David Jackson, Patricia Meglich, Robert Mathis, Sean Valentine. 63) Which of the following statements about the greenhouse effect is true? B) couples the flow of H+ to the phosphorylation of ADP. D) aerobic respiration. Which of the following is a normal process of photosynthesis that could not occur if all reaction centers were inactivated by a toxin? E) uses noncyclic electron flow to capture energy in glucose. D) reduced by the addition of carbon dioxide to the atmosphere, since carbon dioxide removes excess heat from the Earths surface and reflects it back into space. A) G3P A) occurs when carbon atoms from CO2 are incorporated into an organic molecule. Which of the following statements regarding photosynthesis and carbon dioxide is false? 7) ________ cells in leaves are specialized for photosynthesis. If the What provides the carbon atoms that are incorporated into sugar molecules in the Calvin cycle? NADP+ is required for photosynthesis because it _____. d) An electron transport chain a) electromagnetic D) mushrooms . C) Photosystem I functions first in the sequence of steps that make up the light reactions. B) CO2 is needed to complete the light reactions. pyruvate . CO2 provides the carbon atoms that are incorporated into sugars in photosynthesis. b) The Calvin cycle depends on products of the light reactions. Match the following stages of cellular respiration and photosynthesis with the correct characteristics. A) stroma . stroma. During photosynthesis, plants take in carbon dioxide (CO2) and water (H2O) from the air and soil. 41) The electrons lost from the reaction center of photosystem I are replaced by electrons from

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