B) Young trees fix carbon at a lower rate per unit mass than old trees. D) ATP, NADPH, O2, 21) Which of the following is part of the light reaction? n the light reaction, clusters of chlorophyll a, chlorophyll b, and carotenoid pigments function most like. D) the energy in CO2 is used to produce ATP and NADPH. albinism, -a lot of different genes influence 1 -ex. Carbon dioxide is particularly influential in regulating pH. Hints D) Most of the young trees would die within a few years. b) a fuel for photosynthesis. containers are observed for a 24-hour period. A) it involves an electron transport chain. 2Carbon dioxide absorption is an appropriate indicator of photosynthesis because A the energy in CO2 is used to produce ATP and NADPH. C) stroma; thylakoids The light reactions of photosynthesis use _____ and produce _____. D) photosystem I. D) cristae. B) Photons raise electrons in pigments to the ground state. Where is chlorophyll found in a plant cell? You could distinguish a granum from an inner mitochondrial membrane because the granum, but not the inner mitochondrial membrane, would _____. C) an electron. . 63) Which of the following statements about the greenhouse effect is true? . d) ATP, NADPH, O2, Which of the following are produced during the Calvin cycle? Small aquatic plants are placed into three containers of water mixed with carbon dioxide. . D) the energy in CO2 is used to produce ATP and NADPH. 8) In most green plants, chloroplasts are A) concentrated in a zone of leaf tissue called the mesophyll. What is the source of energy that provides the boost for electrons during photosynthesis? 60) Which of the following statements about the greenhouse effect is true? D) the energy in CO 2 is used to produce ATP and NADPH. Contain membrane folds called cristae, whereas chloroplasts contain disk-like vesicles in stacks called grana. In the chloroplast, sugars are made in a compartment that is filled with a thick fluid called the, Chloroplasts contain disklike membranous sacs arranged in stacks called. light would probably What are three factors that affect the rate of photosynthesis? It is well established that as CO 2 in the atmosphere . 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. 1. The light reactions take place in the _________ and the Calvin cycle takes place in the _________. D) CO 2 is needed to complete the light reactions. A student collected & tested the bubbles coming from the plant during this experiment. She placed one beaker in the shade and the other beaker beside a fluorescent lamp. B) lack mitochondria but have chloroplasts. D) phaser. the wavelength increases as a plant is placed further away from a light source. A) They help the plant conserve water and synthesize glucose efficiently under hot, dry conditions. b) nuclear. Any substance that inhibits the transportation of oxygen from the lungs affects _____________. When the carbon dioxide concentration decreases, the color of the indicator solution also changes. E) helps transport H+ against the concentration gradient. stroma. The containers are observed for a 24-hour period. C) Photosynthesis consumes CO2; respiration consumes O2. A) two B) stroma . B) is best at absorbing the energy of blue-violet and red light, just like chlorophyll a. B) Burning fossil fuels release carbon dioxide that was removed from the atmosphere millions of years ago. This is why plants need to take in carbon dioxide. structure C According to this figure, how do H+ ions make their way from the stroma to the thylakoid interior? Which of the following graphs represents the effect of increasing light intensity on the rate of photosynthesis? E) is a result of the oxidation of glucose. 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? . Container A is placed under normal sunlight, B under green light, and C under red light. A) glucose, ADP, NADP+ A) Photosynthesis involves only reductions, while respiration involves only oxidations. 65) Ozone A) formation is promoted by CFCs. Why are most plants green? Small aquatic plants are placed into three containers of water mixed with carbon dioxide and indicator solution. Container A is placed under normal sunlight, B under green light, and C under red light. C) shuttle electrons along in a series of redox reactions. Guard cells. D) thylakoid membranes . f1(x)=x,f2(x)=x2,f3(x)=4x3x2. D) provides the cell with a supply of NADPH molecules. Produces ATP: L, G, ET , CAC C) Most of the biomass of the cut trees would be added to the atmosphere as CO2 within a few years. 1) Based on your knowledge of the process of photosynthesis, the plant in the container placed under red (a) When cooled, the densities of most objects (1) increase, (2) decrease, (3) stay the same. D) Excitation of the electrons is a very stable state. A) H2O Normal human gametes carry ____ chromosomes. . c) a source of electrons for chemiosmosis. What type of gas would you expect to find in these bubbles? E) are found on the inner membrane of chloroplasts. The other five remain and are rearranged to form RuBP.) grana. B) H in glucose; O in water A) a fuel for photosynthesis. d) fluorescence. Less ATP is made under anaerobic conditions, so more glucose must be consumed to produce an equivalent amount of ATP. d) Photosystem I functions first in the sequence of steps a) Each preferentially absorbs slightly different wavelengths of light. . Why don't Calvin Cycle reactions occur during the night? A) play a role in glucose synthesis by plants. You can specify conditions of storing and accessing cookies in your browser. B) carbon dioxide. E) have chloroplasts and vestigial mitochondria. Plants perform both photosynthesis and cellular respiration. A) electromagnetic six? . C) ADP, NADP+, O2 A redox reaction involves the transfer of. 58) Plant cells 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. Involves lights: L C) ATP, NADPH, O2 C) occurs during the light reactions. A) reduced by photosynthesis, which removes carbon dioxide from the atmosphere. 83) Carbon dioxide absorption isanappropriate indicator ofphotosynthesis because A) plants produce oxygen gasbysplitting CO2. the final electron acceptor is NADP+ and not oxygen. . D) formation of waste products in the form of O2, 22) Which of the following are produced during the Calvin cycle? The driving force behind electron transport chain is ____________. D) ATP. . 36) Clusters of light-gathering pigments in a photosystem The electrons lost from the reaction center of photosystem I are replaced by electrons from A) CO2. D) Only photosystem I is found in the thylakoid membranes. E) The principal electron carrier in photosynthesis is NADPH; the principal electron carrier in respiration is NADH. . B CO2 is needed to produce sugars in the Calvin cycle. Based on your knowledge of the process of photosynthesis, the plant in the container placed under red light would probably. b. plants produce oxygen gas by splitting CO2. 83) B) theenergy in CO2isused toproduce ATP and NADPH. C) passes absorbed energy to chlorophyll a. the Calvin cycle depends on products of the light reactions. . Shown here is the graph of the data for the beaker she placed beside the lamp. A) occurs when carbon atoms from CO2 are incorporated into an organic molecule. D) a fuel for cellular respiration and a starting material for making other organic molecules. how did scientists alter the gene for antithrombin so that it could be isolated from milk? Which of the following statements regarding photosynthesis and cellular respiration are true? B) is broken down by carbon dioxide. 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. 17) What is the source of energy that provides the boost for electrons during photosynthesis? C) Chlorophyll b primarily uses green light as the source of energy for photosynthesis. f1(x)=x,f2(x)=x2,f3(x)=4x3x2f _ { 1 } ( x ) = x , \quad f _ { 2 } ( x ) = x ^ { 2 } , \quad f _ { 3 } ( x ) = 4 x - 3 x ^ { 2 } b) methane. What does not occur during the Calvin Cycle? C) ATP. Cellular respiration and photosynthesis are similar in that both involve _____. Carbon dioxide Plants get the carbon dioxide they need from the air through their leaves. D) catalyze the incorporation of carbon atoms into RuBP. CO2 enters and O2 escapes from a leaf via. NADPH 1) What is the name given to organisms that can make their own food and thus sustain themselves. D) In photosynthesis, carbon dioxide is reduced to form sugar, while in respiration, sugar is oxidized to b) 6 CO2 glucose. B) electromagnetism D) carbon dioxide. What is the role of NADP+ in photosynthesis? B) electromagnetic D) ATP, NADPH, CO2. C) the top of the electron transport chain. The water to reverse flow from tank B to tank A. b) the release of O2 into the atmosphere. Where in the chloroplast is chlorophyll found? A) donation of excited electrons by chlorophyll a to a primary electron acceptor B) donation of excited electrons by chlorophyll b to a primary electron acceptor C) absorption of photons by chlorophyll b D) reduction of chlorophyll b by a primary electron acceptor E) absorption of photons by carotenoids, A) donation of excited electrons by chlorophyll a to a primary electron acceptor. photosynthetic prokaryotes that lived inside eukaryotic cells, Photophosphorylation during photosynthesis differs from oxidative phosphorylation during cellular respiration in that. D) is a result of the oxidation of glucose. C) are located on the inner membrane of the chloroplast. This recombination of maternal and paternal genetic material is a key feature of meiosis. NADH The light reactions of photosynthesis use _____ and produce _____. During meiosis, segments of nonsister chromatids can trade places. B) transports H+ ions from the stroma to the thylakoid space. In the chloroplast, sugars are made in a compartment that is filled with a thick fluid called the____, Chloroplasts contain disklike membranous sacs arranged in stacks called, What is the source of energy that provides the boost for electrons during photosynthesis? . It occurs in presence of light so the term "photo" Here the plant uses carbon dioxide and it reacts with water to given glucose You see the boy next door trying to push a crate down the sidewalk. In photosynthesis, the chemiosmotic production of ATP A) requires oxygen. B) is analogous to the production of ATP in mitochondria. C) Photosystem I functions first in the sequence of steps that make up the light reactions. C) a carotenoid D) have mitochondria and chloroplasts. A) carbon fixation B) reduction of carbon C) addition of electrons and protons to carbon D) regeneration of NADP+ E) formation of waste products in the form of O2, E) formation of waste products in the form of O2, Carbon fixation A) occurs when carbon and oxygen from CO2 are incorporated into an organic molecule. D) NADPH. Which of the following is an example of a photoautotroph? The electrons lost from the reaction center of photosystem II are replaced by electrons from centers were inactivated by a toxin? Chlorophyll is found in the __________ of chloroplasts. D) They make it possible for the plant to use the Calvin cycle at night. B) reduction of carbon C) Excitation of the electrons is a very stable state. b) The Calvin cycle depends on products of the light reactions. , t E) The release of energy by the excited electron can be as heat, light, or fluorescence. c) electrons from carbon dioxide and energy from sunlight. . light B) Chlorophyll a absorbs green light. B) photosynthesis. During what phase of meiosis does recombination occur? c) Photosystem II does not transfer electrons from photons. You call to ask the boy his mass, and he replies "50 kg." B) The greenhouse effect is exacerbated by the use of fossil fuels. 35) How do the reaction centers of photosystem I and II differ? What provides electrons for the light reactions? A) formation is promoted by CFCs. D) provides the cell with a supply of NADPH molecules. 2003-2023 Chegg Inc. All rights reserved. . C) a source of electrons for chemiosmosis. a. D) Green helps plants blend into their environment as a sort of camouflage. E) a fuel for cellular respiration and a starting material for making other organic molecules. d) 3 CO2 a three-carbon molecule. grana . A fuel for cellular respiration and a starting material for making other organic molecules. 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. 19) The light reactions occur in the ________, while the Calvin cycle occurs in the ________. Passive transport requires an input of energy from the cell. d) electrons from water and energy from sunlight. A) cellular respiration. The light reactions occur in the ________, while the Calvin cycle occurs in the ________. a) heat. They help the plant conserve water and synthesize glucose efficiently under hot, dry conditions. Occurs in the cytosol: G strategy? spotted flower/blood type, -1 gene influences multiple traits -ex. d) electrons from water and energy from sunlight What provides electrons for the light reactions? 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. . a) quantum. When the carbon dioxide concentration decreases, the color of the indicator solution also changes. NADP+ is reduced during the light reactions, and these electrons are later used to reduce CO2 to glucose in the Calvin cycle. Anaphase- chromatids separate and create daughter chromosome. Occurs in the chloroplast: CC, L Carbon dioxide absorption is an appropriate indicator of photosynthesis because. D) The greenhouse effect has no direct relationship with the Industrial Revolution of the 1800s. E) are used in the electron transport chain to pump H+ into the thylakoid space.
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