A) it involves an electron transport chain. c) CO2 is needed to produce sugars in the Calvin cycle. e) reduction of CO2. c) the membrane brings chlorophyll closer to the light. c) green. Which is the most immediate source of energy for making most of the ATP in your cells ? B) pigment. The stomata open to absorb the carbon dioxide needed to perform photosynthesis. . Within the chloroplast, the light reactions take place in the flattened sacs called thylakoids and the Calvin cycle takes place in the thick fluid called the stroma. 13 38) The energy that excites P680 and P700 is supplied by D) found throughout the leaf tissue. The sodium concentration in a cell is 10 times less than the concentration in the surrounding fluid. a) quantum. For every six molecules of G3P produced, 3 CO2 enter the cycle. A) cellular respiration. Which plant should grow better? According to this figure, how do H+ ions make their way from the stroma to the thylakoid interior? D) methane. c) Plants usually open their stomata at night. The containers are observed for a 24-hour period. The Involves the splitting of glucose: G . Amino Acids enter: G, CAC (a) When cooled, the densities of most objects (1) increase, (2) decrease, (3) stay the same. d) forms part of photosystem II. n the light reaction, clusters of chlorophyll a, chlorophyll b, and carotenoid pigments function most like. Plants, on the other hand, are experts at capturing light energy and using it to make sugars through a process called photosynthesis. B) ATP. Which of the following colors contributes the least energy to photosynthesis? C) Because of their short growth period and self-regeneration, willows are more viable as a source of potential powerthan the trees in most natural forests. E) a fuel for cellular respiration and a starting material for making other organic molecules. D) Photosynthesis produces O2; respiration produces CO2. A) a fuel for photosynthesis. B) are found at the reaction center. Photoautotrophs A) make sugar by using organic raw materials. C) Most of the biomass of the cut trees would be added to the atmosphere as CO2 within a few years. B) is analogous to the production of ATP in mitochondria. D) ATP. Glycolysis is the only stage of cellular respiration that requires _______ to make ______. What transports electrons from the light reactions to the Calvin Cycle? Occurs in the mitochondria: CAC, ETC E) Burning wood contributes more to acid rain than burning fossil fuels. A) glucose, ADP, NADP+ How many turns of the Calvin cycle are required to produce one molecule of glucose? D) chlorophyll, 14) If you expose a photosynthesizing plant to water that contains both radioactive H and radioactive O, thylakoid membranes In this drawing of a chloroplast, which structure represents the thylakoid membrane? D) produces glucose. D) Green helps plants blend into their environment as a sort of camouflage. A) glucose, ADP, NADP+ C) The greenhouse effect is inversely related to increasing levels of atmospheric CO2. If the rate of photosynthesis increases, the amount of carbon dioxide in the environment will decrease and vice versa. spotted flower/blood type, -1 gene influences multiple traits -ex. C) photon. It moves by diffusion through small holes in the underside of the leaf called stomata. Students also viewed Bio Study Guide 37 terms Kristopher_Barkley Lab Test 38 terms morganwasham cellular respiration and photosynthesis pract 57 terms Images Irene_Mejia1 B) thylakoid membranes E) The greenhouse effect has no direct relationship with the Industrial Revolution of the 1800s. Small aquatic plants are placed into three containers of water mixed with carbon dioxide and indicator She counted the bubbles given off by the plants in each beaker. C) an electron. D) of little concern, since it is part of the normal cycle for the planet. C) H in water; O in glucose grana . B) green C) CO 2 is needed to produce sugars in the Calvin cycle. C) Photosynthesis consumes CO2; respiration consumes O2. E) Burning wood contributes more to acid rain than burning fossil fuels. Based on your knowledge of the process of photosynthesis, the plant in the container placed under red light would probably A) absorb no CO2. If you shut off the system and pressure was no longer applied to tank A, you would expect . Although the reactions of the Calvin cycle are not directly dependent on light, they usually do not occur at night. If the rate of photosynthesis increases, the amount of carbon dioxide in the environment will decrease and vice versa. A) Forests play too minor a role in global CO2 dynamics, which are affected far more by marine algae. Plant cells are protected from the harmful effects of reactive oxidative molecules by. a) thylakoid membranes . D) Green helps plants blend into their environment as a sort of camouflage. . Stores energy in a form that can drive cellular work. Where do the light-dependent reactions take place? A) Forests play too minor a role in global CO2 dynamics, which are affected far more by marine algae. e) RuP. In fact, the jump of 2.58 ppm over 2021 amounts tied for 5th-highest annual increase in NOAA's 63 . C) The greenhouse effect will decrease the average temperature of the planet. Then, he placed an aquatic plant in two of the test tubes, as shown below. C) H+ . Plants perform both photosynthesis and cellular respiration. Which of the following statements regarding photosynthesis and carbon dioxide is false? A) stroma . c) is found in the stroma. Which of the following statements correctly explains this observation? You're conducting an experiment to determine the effect of different wavelengths of light on the NADH The light reactions of photosynthesis use _____ and produce _____. Chlorophyll is found in the __________ of chloroplasts. Expert Answer A) H and O both in glucose A) mitochondria. NADPH is an electron carrier that picks up electrons in the light reactions and releases them in the Calvin cycle. stroma . C) NADP+ is reduced to NADPH. The synthesis of ATP from ADP and a phosphate group. Column B . D) protects Earth from UV radiation. B) CO2 is needed to complete the light reactions. C) In photosynthesis, carbon dioxide is oxidized to form sugar, while in respiration, sugar is reduced to From your recent physics class you estimate that the static and kinetic coefficients of friction are 0.80.80.8 and 0.40.40.4 for the boy's shoes, and 0.50.50.5 and 0.20.20.2 for the crate. pyruvate . g. Scala tympani D) catalyze the incorporation of carbon atoms into RuBP. A student prepared two beakers with identical sprigs of a water plant as shown below. 60) Which of the following statements about the greenhouse effect is true? D) include only the green plants. a) carbon dioxide. Figure 5.5 Photosynthesis uses solar energy, carbon dioxide, and water to release oxygen to produce energy-storing sugar molecules. Photosynthesis occurs in chloroplasts and cellular respiration occurs in mitochondria.This answer is correct. a fuel for cellular respiration and a starting material for making other organic molecules. 26) Why are most plants green? Chlorophyll b and carotenoids A) are best at absorbing the energy of green light. Carbon dioxide absorption is an appropriate indicator of photosynthesis because B) They allow the plant to fix carbon more efficiently under conditions of low atmospheric CO2. D) provide energy for the Krebs cycle. Place the letter of your choice in the space provided. . A) electromagnetic a) NADPH recycling. . When the carbon dioxide concentration decreases, the color of the indicator solution also changes. This drives the reactions to form ATP and NADPH. A redox reaction involves the transfer of. In photosynthesis, carbon dioxide is reduced to form sugar, while in respiration, sugar is oxidized to form carbon dioxide. ; thylakoids. 3) Which of the following is an example of a photoautotroph? B) Each preferentially absorbs slightly different wavelengths of light. The containers are observed for a 24-hour period. Why does the relationship between metabolic rate and temperature exist? 13) Which of the following molecules is both a reactant and a product of photosynthesis? b) Chlorophyll a is found in photosystem I and chlorophyll b in photosystem II. After reading the paragraph, answer the question(s) that follow. b) nuclear. 32) Which of the following statements about the absorption of photons by pigment molecules is true? E) The principal electron carrier in photosynthesis is NADPH; the principal electron carrier in respiration is NADH. B) are products of the Calvin cycle. Less ATP is made under anaerobic conditions, so more glucose must be consumed to produce an equivalent amount of ATP. D) Most of the young trees would die within a few years. Which of the following equations represents photosynthesis? A student poured a solution of bromthymol blue indicator into three test tubes. B) a starting material for the Calvin cycle. At t=120st=120 \mathrm{~s}t=120s, what is the magnitude of the acceleration a component is subjected to? A) cellular respiration. Carbon dioxide is particularly influential in regulating pH. 65) Ozone A) formation is promoted by CFCs. A) an antenna. C) a starting material for the Calvin cycle. A) chlorophyll b b) a free, energized electron. D) carbon dioxide. B) a propeller on a motorboat. What can you conclude about how the distance from a light source relates to the rate of photosynthesis? The water to reverse flow from tank B to tank A. 44) Photophosphorylation during photosynthesis differs from oxidative phosphorylation during cellular What is the source of energy that provides the boost for electrons during photosynthesis? a) Even though the plant received no visible light, it was able to use the shortwave part of the electromagnetic spectrum (gamma rays and X-rays) to carry out photosynthesis. a) a fuel for cellular respiration and a starting material for making other organic molecules. Carbon is stored in the living biomass. B) red states that allele pairs separate or segregate during gamete formation, and randomly unite at fertilization, the inheritance of one character has no effect on the inheritance of another, Is hydrolyzed to ADP, loses a third phosphate group. b) G3P (C3H6O3) c. 2 days ==\ldots= minutes In developed countries, CO 2 was first applied to cucumbers, tomatoes, and salads (western-style mixed vegetables) in greenhouse (enclosed space). Small aquatic plants are placed into three containers of water mixed with carbon dioxide and indicator solution. B) two d) ATP, NADPH, O2, the Calvin cycle produce: glucose, ADP, NADP+, Which of the following colors of light are useful during the process of photosynthesis? c) ATP. C) H2O. Which of the following statements about water balance disorders is scientifically accurate? . Plant cells A) lack mitochondria and chloroplasts. 43) Photosystem II If the rate of photosynthesis increases, the amount of carbon dioxide in the environment will decrease, and vice versa. d) G3P. E) protects Earth from UV radiation. The containers are observed for a 24-hour period. Which of the following statements describes what happens in the photosystems? . Purple sulfur bacteria are organisms capable of photosynthesis. What do plants do with the sugar they produce in photosynthesis. The plants in the red light because chlorophyll absorbs red light. 4) Autotrophs that utilize light as their energy source are. the wavelength increases as a plant is placed further away from a light source. These sugar molecules contain the energy that living things need to survive. Container A is placed under normal sunlight, B under green light, and C under red light. . A) may be an evolutionary relic from when atmospheric O2 levels were low. A) blue 5) What is the likely origin of chloroplasts? They help the plant conserve water and synthesize glucose efficiently under hot, dry conditions. A) requires oxygen. A) water. c) they lose potential energy. D) a spring. D) the bottom of the electron transport chain. light . . B) is of benefit to the plant since it breaks down rubisco. D) the same as the equation for glycolysis written in reverse. A) Chlorophyll a reflects green light. or three? f. Pharyngotympanic (auditory) tube Container A is placed under normal sunlight, B under green light, and C under red light. Think carefully about the fission process. E) its enzymes are membrane-bound, D) the final electron acceptor is NADP+ and not oxygen. ) 55) What is the main adaptive advantage of the C4 and CAM photosynthesis strategies over the C3 C) plants produce oxygen gas by splitting CO2. The greenhouse effect is exacerbated by the use of fossil fuels. B) They allow the plant to fix carbon more efficiently under conditions of low atmospheric CO2. A) cyanobacteria in freshwater and marine ecosystems B) grizzly bears in Alaska C) bacteria in our mouth D) fungi growing in the refrigerator E) mushrooms growing on the side of a dead tree, A) cyanobacteria in freshwater and marine ecosystems, What is the likely origin of chloroplasts? . C) regeneration of ATP is driven by a flow of protons through an ATP synthase. b) methane. If the B) energy is stored in the form of a proton concentration difference. Which of the following colors contributes the least energy to photosynthesis? c) have photosynthetic pigments. A) moderated by photosynthesis, which removes carbon dioxide from the atmosphere. Brainscape helps you realize your greatest personal and professional ambitions through strong habits and hyper-efficient studying. Plants use sugars as : A) concentrated in a zone of leaf tissue called the mesophyll. B) glucose, ADP, NADP+, CO2 Formation of waste products in the form of O2. During meiosis, segments of nonsister chromatids can trade places. C) shuttle electrons along in a series of redox reactions. one? B) H2O. d) oxidation-reduction (redox) reactions, When chloroplast pigments absorb light, _____. 27) Which of the following colors contributes the least energy to photosynthesis? D) eight, 52) The Calvin cycle constructs ________, an energy-rich molecule that a plant cell can then use to C) They allow the plant to fix carbon more efficiently in dim or cool conditions. It is often too cold at night for these reactions to take place. B) H+ . You've added an indicator to each solution. 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) ethylene glycol C) Most of the biomass of the cut trees would be added to the atmosphere as CO2 within a few years. thylakoid membrane. B) the breaking of glucose bonds. C) O2 l. Tympanic membrane (eardrum) C) is a source of oxygen for cellular respiration. D) the energy in CO 2 is used to produce ATP and NADPH. B) transports H+ ions from the stroma to the thylakoid space. A) Chlorophyll a is found in photosystem I and chlorophyll b in photosystem II. 2. Carbon dioxide initially combines with RuBP, and RuBP is regenerated to continue the Calvin cycle. A by-product of cellular respiration is heat. B) food . E) Young trees emit ozone-destroying gases at a higher rate than old trees and would thus worsen the ozone-hole problem while alleviating global warming. She counted the bubbles given off by the plants in each beaker. B) donation of excited electrons by chlorophyll b to a primary electron acceptor B) carbon dioxide. C) is attributable to high CO2 levels. D) the energy in CO2 is used to produce ATP and NADPH. a) function in energy transformation. E) Photosystem II does not transfer electrons from photons. C) Chlorophyll b primarily uses green light as the source of energy for photosynthesis. d) photosystem I. Which of the following are produced by reactions that take place in the thylakoids and consumed by reactions in the stroma? b) helps produce ATP from the light reactions. Container A is placed under normal sunlight, B under green light, and C under red light. . Photorespiration A) is an evolutionary relic from when atmospheric O2 levels were low and did not interfere with rubisco. How do the reaction centers of photosystem I and II differ? b) H2O- Water. d) reduction of NADP+. . They record their results and display them on a graph as shown. The full range of electromagnetic energy is called the ________ spectrum. A) two 45) In photophosphorylation, energy from electron flow is used to transport ________ from the B) Chlorophyll a absorbs green light. 59) Global warming due to the greenhouse effect may be E) uses noncyclic electron flow to capture energy in glucose. B) C5H12O6 + 6 O2 + sunlight 5 CO2 + 6 H2O. d. Malleus Which part of the ATP molecule breaks free of the rest when an ATP molecule is used for energy? D) include only the green plants. D) ATP, NADPH, O2, 21) Which of the following is part of the light reaction? A) G3P If the rate of photosynthesis increases, the amount of carbon dioxide in the environment will decrease, and vice versa. A packet of light energy is called a D) pass absorbed energy to chlorophyll a. E) catalyze the incorporation of carbon atoms into RuBP. food . . how did scientists alter the gene for antithrombin so that it could be isolated from milk? containers are observed for a 24-hour period. b) chemiosmosis can occur across the thylakoid membrane. Small aquatic plants are placed into three containers of water mixed with carbon dioxide and indicator E) helps transport H+ against the concentration gradient. a) red. Where in the chloroplast is chlorophyll found? D) absorption of photons by carotenoids. What are by-products of cellular respiration? B. You could distinguish a granum from an inner mitochondrial membrane because the granum, but not the inner mitochondrial membrane, would _____. c) NADPH 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. CO2 provides the carbon atoms that are incorporated into sugars in photosynthesis. In general, the Calvin cycle's primary function is to produce organic products required by plants by utilizing the products of photosynthesis's light reactions ( ATP and NADPH ). D) NADPH. D) They make it possible for the plant to use the Calvin cycle at night. Which of the following statements about the absorption of photons by pigment molecules is true? semi-tropicald. ATP and NADPH A) play a role in glucose synthesis by plants. c) electrons from carbon dioxide and energy from sunlight. 6) In most green plants, chloroplasts are. Mitochondria transfer ________ energy from ________ to ATP; chloroplasts transform ________ energy into the chemical energy of ATP. E) produces ATP. Does the distribution shown in the figure seem reasonable? ________ cells in leaves are specialized for photosynthesis. h. Scala vestibuli Light reactions are located in the thylakoid membrane because _____. C) orange 31) A packet of light energy is called a The movement of H+ across a membrane down its concentration gradient, Carbon dioxide absorption is an appropriate indicator of photosynthesis because. The B) is broken down by carbon dioxide. B) ATP Which is hotter-a red star or a blue star? The electrons lost from the reaction center of photosystem II are replaced by electrons from Check all that apply The Calvin cycle constructs ________, an energy-rich molecule that a plant cell can then use to make glucose or other organic molecules. d) be inside a mitochondrion. Carbon dioxide absorption is an appropriate indicator of photosynthesis because A) CO2 is needed to produce sugars in the Calvin cycle. ignore? j. Tectorial membrane 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. B) lack mitochondria but have chloroplasts. versa. Match the terms in column A with the descriptions in column B. C) In photosynthesis, carbon dioxide is oxidized to form sugar, while in respiration, sugar is reduced to form carbon dioxide. D) the energy in CO2 is used to produce ATP and NADPH. In photosynthesis, . is oxidized and . Is reduced, -occurs in the cytoplasm -glucose goes in -make 2 molecules of ATP per 1 glucose -produces pyruvate, -occurs in mitochondria -needs pyruvate -produces CO 2 -produces 2 ATP per 1 glucose, -occurs in mitochondria -required oxygen -produces water -produces 28 ATP per 1 glucose, chemical equation for cellular respiration, can form the most bonds and is therefore the most versatile element to build molecules from, -energy processing -growth and development -response to the environment -evolutionary adaptation -order (made of cells) -reproduction -regulation, -forms hydrogen bonds -can moderate temperature -water is the solvent of life -supports molecular functions, The gene p53, which checks for DNA damage at the G1 checkpoint, is missing or mutated, causing cells to divide uncontrollably, By the Y chromosome of the male, which is separated during Meiosis I, where half get an X and half get a Y. Meiosis ends in. and Mitosis ends in.. -when homologous chromosomes pair during meiosis, non-sister chromatids exchange homologous portions -following crossing over, the chromatids are recombinant, combing paternal and maternal genes. The ATP and NADPH produced during the light reactions are necessary to provide energy and high-energy electrons for the Calvin cycle. Which of the following is part of the light reaction? D) The release of energy by the excited electron can be as heat, light, or fluorescence. C) plants produce oxygen gas by splitting CO2. The energy that excites P680 and P700 is supplied by A) electrons passing down the electron transport chain. chlorophyll a? Absorb more CO2than the plants under the green light. He placed a stopper on each test tube and placed them all in the dark for 24 hours. 2003-2023 Chegg Inc. All rights reserved. D) NADP+ is oxidized to NADPH. cool, moistc. Which of the following correctly identifies the structures labeled in Figure 8-2? When does synapsis and crossing-over occur in meiosis? 18) Which of the following statements regarding photosynthesis is false? Carbon dioxide absorption is an appropriate indicator of photosynthesis because CO2 is needed to produce sugars in the Calvin cycle After the reverse osmosis system has been operating for 30 minutes, the solution in tank A would Be hypertonic to tank B. C) absorb electrons. Occurs in the chloroplast: CC, L Mutation that introduces a different codon, resulting in a different amino acid. The containers are observed for a 24-hour period. D) thylakoid membranes . NADPH is used to reduce carbon during the Calvin cycle. The driving force behind electron transport chain is ____________. C) Excitation of the electrons is a very stable state. color of the indicator solution also changes. d) Photosystem I functions first in the sequence of steps a) Each preferentially absorbs slightly different wavelengths of light. Which of the following is an example of a photoautotroph? stroma. the interval (,)(-\infty, \infty)(,). D) helps transport H+ against the concentration gradient. B) four The photosynthetic pigment chlorophyll is anchored in the thylakoid membrane. 49) Photosynthetic organisms derive their carbon from B) Photosynthesis involves only oxidations, while respiration involves only reductions. A) play a role in glucose synthesis by plants. C) yellow B) Photons raise electrons in pigments to the ground state. What is the purpose of test tube #1 that does not contain a plant? Photosynthesis and cellular respiration both contain electron transport chains.This answer is correct. . stroma . c) glucose, ADP, NADP+. D) In photosynthesis, carbon dioxide is reduced to form sugar, while in respiration, sugar is oxidized to form carbon dioxide. A) lack mitochondria and chloroplasts. b) ATP. d) When light energy is not available, plants can derive energy from inorganic molecules. 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. c) the production of sugars. D) Photosystem II does not transfer electrons from photons. Does it seem peculiar that symmetric fission is not the most probable? Cellular Respiration uses them to produce ATP, CO2, and O2, Photosynthesis uses CO2 and H2O to convert sunlight into glucose and O2, Interphase- all cells make new molecules and organelles, Prophase-two sister chromatids joined together; in cytoplasm-spindle microtubules, Metaphase- microtubules attach to the sister chromatids and pull toward opposite polls. He placed a stopper on each test tube and placed them all in the dark for 24 hours. CO2 is needed to produce sugars in the Calvin cycle. Which of the following statements regarding transport across a plasma membrane is false? 5. A) donation of excited electrons by chlorophyll a to a primary electron acceptor C) Photosynthesis consumes CO2; respiration consumes O2. b) plants produce oxygen gas by splitting CO2. 15) A redox reaction involves the transfer of The chloroplast ATP synthase A) is a nucleic acid complex. B) absorb the same amount of CO2 as the plants under both the green light and normal sunlight. . d) electrons from water and energy from sunlight. 61) It has been argued that cutting old-growth forests and replacing them with plantations of young trees b) a free, energized electron. B) are products of the Calvin cycle. Based on this information, which part of cellular respiration would be stopped if arsenic were ingested? What do CR and photosynthesis have in common? The oxygen released into the air as a product of photosynthesis comes from. What provides electrons for the light reactions? ATP. The characteristic rotational energy E0rE_{0 \mathrm{r}}E0r for the rotation of a N2\mathrm{N}_2N2 molecule is 2.48104eV2.48 \times 10^{-4} \mathrm{eV}2.48104eV. If the D) mitochondria; chloroplasts 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. Which of the following are produced during the Calvin cycle? D) cristae. John David Jackson, Patricia Meglich, Robert Mathis, Sean Valentine, David N. Shier, Jackie L. Butler, Ricki Lewis, Literature II: Restoration and Eighteenth Cen, American Government Chapter 13 - Presidential. D) are found on the plasma membrane of mesophyll cells. Telophase and Cytokinesis- division of the cytoplasm. Some stages may have more than one characteristic or share characteristics. 3. 30) Plant cells are protected from the harmful effects of reactive oxidative molecules by . B) CO2 is needed to complete the light reactions. Container A is placed under normal sunlight, B under green light, and C under red light. b) a fuel for photosynthesis. You've added an indicator to each solution. A) carbon fixation The concentration of CO2 will decrease as plants use it to energizes electrons in the electron transport system. This is why plants need to take in carbon dioxide. A) photosynthetic prokaryotes that lived inside eukaryotic cells. D) Photosynthesis produces O2; respiration produces CO2. H+ hair color. d) fluorescence. C) couples the flow of H+ to the phosphorylation of NADP+. centers were inactivated by a toxin? When chloroplast pigments absorb light, their electrons become excited. C) Chlorophyll b primarily uses green light as the source of energy for photosynthesis. f1(x)=x,f2(x)=x2,f3(x)=4x3x2. They place an Elodea plant into a test tube filled with water. B) CO 2 is needed to complete the light reactions. A) mitochondria that had a mutation for photosynthesis B) photosynthetic prokaryotes that lived inside eukaryotic cells C) a combination of mitochondria and Golgi bodies D) prokaryotes with photosynthetic mitochondria E) eukaryotes that engulfed photosynthetic fungi, B) photosynthetic prokaryotes that lived inside eukaryotic cells. See Page 1. A) The greenhouse effect is reduced by deforestation. In recent decades, the CO 2 fertilizer (such as AGROSOL, a carbon dioxide gas fertilizer) was applied to promote field condition (open space). A) Photosynthesis involves only reductions, while respiration involves only oxidations. D) carbon dioxide. E) All photosynthetic pigments are colored green. in which of the products of photosynthesis will the radioactive H and O show up? Because plants can make more organic material each day than they need to use as respiratory fuel and precursors for biosynthesis, they stockpile the extra sugar as starch, storing some in chloroplasts, as well as in roots, tubers, seeds, and fruits.