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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. cool, moistc. Males: In the 7 th weekof development, the SRY gene on the Y chromosome activates anumber of genes, and the gonads develop as testes. 8) In most green plants, chloroplasts are A) concentrated in a zone of leaf tissue called the mesophyll. A) one Carbon dioxide Plants get the carbon dioxide they need from the air through their leaves. C) Most of the biomass of the cut trees would be added to the atmosphere as CO2 within a few years. A) donation of excited electrons by chlorophyll a to a primary electron acceptor Chlorophyll is found in the __________ of chloroplasts. a) quantum. D) pass absorbed energy to chlorophyll a. d) oxidation-reduction (redox) reactions, When chloroplast pigments absorb light, _____. D) pass absorbed energy to chlorophyll a. E) catalyze the incorporation of carbon atoms into RuBP. 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? Brainscape helps you realize your greatest personal and professional ambitions through strong habits and hyper-efficient studying. . When the carbon dioxide concentration decreases, the color of the indicator solution also changes. E) The release of energy by the excited electron can be as heat, light, or fluorescence. Photosynthetic organisms derive their carbon from 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. How do the reaction centers of photosystem I and II differ? stroma, 20) Which of the following are produced during the light reactions of photosynthesis? a) they become reduced. a) ATP. f. Pharyngotympanic (auditory) tube Small aquatic plants are placed into three containers of water mixed with carbon dioxide and indicator solution. B) four The B) H+ . D) carbon dioxide. stroma . d) fluorescence. CO2 provides the carbon atoms that are incorporated into sugars in photosynthesis. After reading the paragraph, answer the question(s) that follow. Which part of the ATP molecule breaks free of the rest when an ATP molecule is used for energy? If the rate of photosynthesis increases, the amount of carbon dioxide in the environment will decrease and vice versa. Turn off all gas flow when the machine is not in use. Within the plant cell, the water is oxidized, meaning it loses electrons, while the carbon dioxide is reduced, meaning it gains electrons. C) ATP. Which of the following are produced during the light reactions of photosynthesis? The energy that excites P680 and P700 is supplied by A) electrons passing down the electron transport chain. | : : O " ) " e 0 . They help the plant conserve water and synthesize glucose efficiently under hot, dry conditions. D. CO is needed to produce sugars in the Calvin cycle. C) NADH c) stroma . b) FADH2 Figure 5.5 Photosynthesis uses solar energy, carbon dioxide, and water to release oxygen to produce energy-storing sugar molecules. D) a spring. B) is broken down by carbon dioxide. D) The greenhouse effect will decrease the average temperature of the planet. At the same time other chemical changes may occur, which form additional colors through the development of red anthocyanin pigments. 48) Mitochondria transfer ________ energy from ________ to ATP; chloroplasts transform ________ 4. d) kinetic, Which of the following colors contributes the least energy to photosynthesis? 61) It has been argued that cutting old-growth forests and replacing them with plantations of young trees stroma . As a result of the cascade of electrons down the electron transport chains of the light reactions. D) chlorophyll. c) green. A) Chlorophyll a reflects green light. B) produce organic molecules from inorganic molecules, Which of the following is an example of a photoautotroph? 61) What is the main adaptive advantage of the C4 and CAM photosynthesis strategies over the C3 strategy? It occurs in presence of light so the term "photo" Here the plant uses carbon dioxide and it reacts with water to given glucose E) thylakoids; stroma C) plants produce oxygen gas by splitting CO2. The energy to run the Calvin cycle is produced. . Produces O2: L 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. A student prepared two beakers with identical sprigs of a water plant as shown below. b) chemiosmosis can occur across the thylakoid membrane. You can specify conditions of storing and accessing cookies in your browser. spotted flower/blood type, -1 gene influences multiple traits -ex. Compare Earth to Mars and list three similarities. D) the final electron acceptor is NADP+ and not oxygen. C) three d) photosystem I. . D) food . D) Only photosystem I is found in the thylakoid membranes. respiration in that B) is analogous to the production of ATP in mitochondria. Fatty Acids enter: CAC, John David Jackson, Patricia Meglich, Robert Mathis, Sean Valentine, David N. Shier, Jackie L. Butler, Ricki Lewis. in which of the products of photosynthesis will the radioactive H and O show up? g. Scala tympani nucleus 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? What are three factors that affect the rate of photosynthesis? The concentration of CO2 will decrease as plants use it to energizes electrons in the electron transport system. 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. d) reduction of NADP+. E) All photosynthetic pigments are colored green. Place the letter of your choice in the space provided. B) The greenhouse effect is exacerbated by the use of fossil fuels. 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? 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. The containers are observed for a 24-hour period. A) has P700 at its reaction center. A) photosynthetic prokaryotes that lived inside eukaryotic cells. You have a large, healthy philodendron that you carelessly leave in total darkness while you are away on vacation. According to this figure, how do H+ ions make their way from the stroma to the thylakoid interior? d) Glucose (C6H12O6) Occurs in the chloroplast: CC, L a) NADPH recycling. a) forms NADPH to be used in the Calvin cycle. Carbon dioxide absorption is an appropriate indicator of photosynthesis because. A) light produce organic molecules from inorganic molecules. B) plants produce oxygen gas by splitting CO 2. What transports electrons from the light reactions to the Calvin Cycle? true or false: organisms on earth are currently classified first as either plant or animal. 51) To produce one glucose, the Calvin cycle needs to be run through ________ time(s). D) photosystem I. C) CO2isneeded toproduce sugars intheCalvin cycle. Carbon dioxide absorption is an appropriate indicator of photosynthesis because CO2 is needed to produce sugars in the Calvin cycle. A) absorb no CO2. Small aquatic plants are placed into three containers of water mixed with carbon dioxide and indicator albinism, -a lot of different genes influence 1 -ex. . 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. B) shuttle electrons along in a series of redox reactions. C) is attributable to high CO2 levels. Container A is placed under normal sunlight, B under green light, and C under red light. E) NADPH. Plants use sugars as : You've added an indicator to each solution. A) ATP is not produced during photosynthesis, but only during respiration. Shown here is the graph of the data for the beaker she placed beside the lamp. NADPH is used to reduce carbon during the Calvin cycle. The photosystems absorb solar energy and pass that energy to the mitochondria. . A) stroma 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. C) carbon dioxide. 12) The oxygen released into the air as a product of photosynthesis comes from Which of the following are produced by reactions that take place in the thylakoids and consumed by reactions in the stroma? a) helps transport H+ against the concentration gradient. h. Scala vestibuli It is well established that as CO 2 in the atmosphere . At some point, another. b. plants produce oxygen gas by splitting CO2. c) Carbon dioxide (CO2) 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. B) They allow the plant to fix carbon more efficiently under conditions of low atmospheric CO2. Small aquatic plants are placed into three containers of water mixed with carbon dioxide and indicator solution. C plants produce oxygen gas by splitting CO2. c) NADPH You could distinguish a granum from an inner mitochondrial membrane because the granum, but not the inner mitochondrial membrane, would _____. C) Photosynthesis consumes CO2; respiration consumes O2. 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. 62) The greenhouse effect is A) reduced by photosynthesis, which removes carbon dioxide from the atmosphere. C) is found in the stroma. moderated by photosynthesis, which removes carbon dioxide from the atmosphere. a) pass energy to the reaction center. . Does the distribution shown in the figure seem reasonable? c) a source of electrons for chemiosmosis. A) blue C) H2O. D) the energy in CO2 is used to produce ATP and NADPH. Mutation that introduces a different codon, resulting in a different amino acid. What important fact does this argument grana . Involves the splitting of glucose: G c. External acoustic meatus It is often too cold at night for these reactions to take place. C) a carotenoid CO2 is needed to produce sugars in the Calvin cycle. The water to reverse flow from tank B to tank A. d) An electron transport chain D) a fuel for cellular respiration and a starting material for making other organic molecules. A) chlorophyll b Tube 2 will turn yellow as carbon dioxide is produced during cellular respiration. A) is a nucleic acid complex. C) reduced by the burning of fossil fuels, which removes oxygen from the atmosphere. D) They make it possible for the plant to use the Calvin cycle at night. shuttle electrons along in a series of redox reactions. Match the terms in column A with the descriptions in column B. She placed one beaker in the shade and the other beaker beside a fluorescent lamp. . Amino Acids enter: G, CAC c) Plants usually open their stomata at night. Photorespiration A) is an evolutionary relic from when atmospheric O2 levels were low and did not interfere with rubisco. CO2 enters and O2 escapes from a leaf via. C) provide energy for the citric acid cycle. 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. B) Burning fossil fuels release carbon dioxide that was removed from the atmosphere millions of years ago. a) The light reactions occur in the thylakoid membranes, while the Calvin cycle occurs in the stroma. c) phaser. Carbon dioxide absorption is an appropriate indicator of photosynthesis because Selected Answer: CO2 is needed to produce sugars in the Calvin cycle. 4) Autotrophs that utilize light as their energy source are. 3) Which of the following is an example of a photoautotroph? c) the membrane brings chlorophyll closer to the light. A) Plants require carbon dioxide, water, and sunlight to make glucose. During what phase of meiosis does recombination occur? Which of the following are produced during the Calvin cycle? color of the indicator solution also changes. 26) Why are most plants green? A) water. Mitochondria differ from chloroplasts in that mitochondria. Elevated atmospheric carbon dioxide concentration (elevated CO 2) is a major component of climate change. What is the name given to organisms that can make their own food and thus sustain themselves without consuming organic molecules derived from other organisms? (a) When cooled, the densities of most objects (1) increase, (2) decrease, (3) stay the same. Container A is placed under normal sunlight, B under green light, and C under red light. If the Because the Calvin cycle requires CO2 to produce sugars, carbon dioxide absorption is an appropriate indicator of photosynthesis. B) pigment. It is acidic, and its concentration is in continual flux as a result of its utilization by aquatic plants in photosynthesis and release in respiration of aquatic organisms. b) NADH. NADPH 2. C) are inputs to the photosystems. Which plant should grow better? A) electrons passing down the electron transport chain. Where do the light-dependent reactions take place? NADH The light reactions of photosynthesis use _____ and produce _____. c) absorbs light energy. B) CO2 is needed to complete the light reactions. A) requires oxygen. A) occurs when carbon and oxygen from CO2 are incorporated into an organic molecule. Plants appear green as they absorb these colors and reflect mostly green light. B) a fuel for photosynthesis. 16) If you expose a photosynthesizing plant to water that contains both radioactive H and radioactive O, in which of the products of photosynthesis will the radioactive H and O show up? They also open to release the oxygen produced by this process. A) inner membrane; outer membrane This drives the reactions to form ATP and NADPH. b) orange, red, and violet. Which figure depicts an animal cell placed in a solution hypotonic to the cell? B) is of benefit to the plant since it breaks down rubisco. 13 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. d) Carbon dioxide concentrations decrease at night. d) ATP, NADPH, O2, Which of the following are produced during the Calvin cycle? 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 . B) glucose, ADP, NADP+, CO2 The containers are observed for a 24-hour period. D) the energy in CO 2 is used to produce ATP and NADPH. If the rate of photosynthesis increases, the amount of carbon dioxide in the environment will decrease and vice versa. A) cyanobacteria in freshwater and marine ecosystems. b) The Calvin cycle depends on products of the light reactions. B) glucose B) are very different from those of cellular respiration. Absorb more CO2than the plants under the green light. Distinguish between utilitarian conservation and biocentric preservation. concentrated in a zone of leaf tissue called the mesophyll. D) produces glucose. D) ATP. C) have mitochondria but do not have chloroplasts. Glycolysis is the only stage of cellular respiration that requires _______ to make ______. A) pass energy to the reaction center. C) Photosystem I functions first in the sequence of steps that make up the light reactions. ________ to the thylakoid compartment, generating a concentration gradient of ________. (SELECT ALL THAT APPLY.). B) C5H12O6 + 6 O2 + sunlight 5 CO2 + 6 H2O. E) thylakoids; stroma. Which of the following is an example of a photoautotroph? Then, he placed an aquatic plant in two of the test tubes, as shown below. 83) B) theenergy in CO2isused toproduce ATP and NADPH. Container A is placed under normal sunlight, B under green light, and C under red light. C) occurs during the light reactions. Plants gather the sun's energy with light-absorbing pigments called, The oxygen released into the air as a product of photosynthesis comes from. C) ATP, NADPH, O2 Carbon is stored in the living biomass. d) break down H2O. six? The light reactions occur in the ________, while the Calvin cycle occurs in the ________. absorption of carbon dioxide as an indicator of the rate of photosynthesis in aquatic ecosystems. B) Photosynthesis involves only oxidations, while respiration involves only reductions. E) a fuel for cellular respiration and a starting material for making other organic molecules. The electrons lost from the reaction center of photosystem II are replaced by electrons from Which is the most immediate source of energy for making most of the ATP in your cells ? Small aquatic plants are placed into three containers of water mixed with carbon dioxide and indicator solution. Any substance that inhibits the transportation of oxygen from the lungs affects _____________. D) The release of energy by the excited electron can be as heat, light, or fluorescence. D) absorb less CO2 than the plants under green light. 31) A packet of light energy is called a i. Stapes Changing the enzyme's three-dimensional shape. He placed a stopper on each test tube and placed them all in the dark for 24 hours. The light reactions of photosynthesis include _____. They record their results and display them on a graph as shown. E) They allow the plant to avoid photorespiration by producing a four-carbon sugar in place of glucose. 83) Carbon dioxide absorption isanappropriate indicator ofphotosynthesis because A) plants produce oxygen gasbysplitting CO2. E) produces ATP. What is the main adaptive advantage of the C4 and CAM photosynthesis strategies over the C3 strategy? A) The greenhouse effect is reduced by deforestation. C) orange C) six . You've added an indicator to each solution. D) NADPH. . D) formation of waste products in the form of O2, 22) Which of the following are produced during the Calvin cycle? b) electrons from water and energy from ATP. Light reactions are located in the thylakoid membrane because _____. You're conducting an experiment to determine the effect of different wavelengths of light on the D) carbon dioxide. A) They help the plant conserve water and synthesize glucose efficiently under hot, dry conditions. A fuel for cellular respiration and a starting material for making other organic molecules. Which of the following statements regarding photosynthesis is false? 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. Based on analysis from NOAA's Global Monitoring Lab, global average atmospheric carbon dioxide was 414.72 parts per million ("ppm" for short) in 2021, setting a new record high despite the continued economic drag from the COVID-19 pandemic. B) food . A) oxygen. A) occurs when carbon atoms from CO2 are incorporated into an organic molecule. In photosynthesis, the chemiosmotic production of ATP A) requires oxygen. Carbon dioxide is one of the reactants in photosynthesis. b) plants produce oxygen gas by splitting CO2. The chloroplast ATP synthase A) is a nucleic acid complex. A) ATP is not produced during photosynthesis, but only during respiration. Produces a net gain of 2 ATP: G a) NADH B) energy is stored in the form of a proton concentration difference. C) Pigments only lose energy in the excitation process. d) G3P. 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. If the concentration of carbon dioxide is increased, the rate of photosynthesis will therefore increase. Plants, on the other hand, are experts at capturing light energy and using it to make sugars through a process called photosynthesis. light . C) NADP+ is reduced to NADPH. (One G3P leaves the cycle as an output. If the rate of photosynthesis increases, the amount of carbon dioxide in the environment will decrease, and vice versa. E) its enzymes are membrane-bound, D) the final electron acceptor is NADP+ and not oxygen. ) Determine whether the given set of C) absorb less CO2 than the plants under green light. A student exposed two plants to only red light and two plants to only green light. . What two molecules are produced by the light reactions and used to power the Calvin cycle? 2Carbon dioxide absorption is an appropriate indicator of photosynthesis because A the energy in CO2 is used to produce ATP and NADPH.