Arsenic is a poison that binds to a molecule needed to build acetyl CoA. b) is a nucleic acid complex. You're conducting an experiment 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? It has increased from the pre-industrial level of 280 mol mol -1 in 1750 to c. 400 mol mol -1 at present and is expected to increase to c. 900 mol mol -1 by the end of the 21st century. food . D) production is associated with events taking place on the inner mitochondrial membrane. A) inner membrane; outer membrane light would probably D) In photosynthesis, carbon dioxide is reduced to form sugar, while in respiration, sugar is oxidized to form carbon dioxide. d) stroma . The containers are observed for a 24-hour period. B) H in glucose; O in water D) The greenhouse effect has no direct relationship with the Industrial Revolution of the 1800s. Plants release what gaseous by-product as a result of photosynthesis? C) a windmill. What type of gas would you expect to find in these bubbles? The light reactions of photosynthesis use _____ and produce _____. C) Photosynthesis consumes CO2; respiration consumes O2. 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. g. Scala tympani B) ethylene glycol C) yellow A by-product of cellular respiration is heat. a) red. The containers are observed for a 24-hour period. 5) What is the likely origin of chloroplasts? Match the terms in column A with the descriptions in column B. B) ATP cellular respiration and photosynthesis pract, Biology | Unit 2 Review | Classification, Evo, 5. organisaiton: plant organisation: Transpir, Michelle Provost-Craig, Susan J. Although the reactions of the Calvin cycle are not directly dependent on light, they usually do not occur at night. C) is found in the stroma. D) aerobic respiration. When the carbon dioxide concentration decreases, the color of the indicator solution also changes. D) protects Earth from UV radiation. A student prepared two beakers with identical sprigs of a water plant as shown below. grana . C) The greenhouse effect will decrease the average temperature of the planet. FADH2 shuttles electrons to the electron transport chain: CAC c) NADPH After reading the paragraph, answer the question(s) that follow. Place the letter of your choice in the space provided. d) Carbon dioxide concentrations decrease at night. d) 3 CO2 a three-carbon molecule. a) they become reduced. ; stomata. D) include only the green plants. The sodium concentration in a cell is 10 times less than the concentration in the surrounding fluid. A) moderated by photosynthesis, which removes carbon dioxide from the atmosphere. 2003-2023 Chegg Inc. All rights reserved. What does not occur during the Calvin Cycle? D) carbon dioxide. Why don't Calvin Cycle reactions occur during the night? Water that is filtered out of the blood by the kidneys is returned to the body through the action of aquaporins. a fuel for cellular respiration and a starting material for making other organic molecules. , Why are there less air bubbles as the plant is place further away from the light source -RNA is made from DNA vis transcription -RNA is transcribed by the enzyme RNA polymerase, -proteins are made from RNA via translation -ribosomes translate proteins w/ the help of transfer RNA. E) Photosynthesis involves both reduction and oxidation, while respiration involves only oxidation. B) are found in the roots of plants. pyruvate . 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 cells are protected from the harmful effects of reactive oxidative molecules by. b. A) blue For every six molecules of G3P produced, 3 CO2 enter the cycle. E) a fuel for cellular respiration and a starting material for making other organic molecules. the final electron acceptor is NADP+ and not oxygen. containers are observed for a 24-hour period. Produces molecules of NADPH: L If the rate of photosynthesis increases, the amount of carbon dioxide in the environment will decrease, and vice versa. the energy in CO 2 is used to produce ATP and NADPH. f. Pharyngotympanic (auditory) tube E) Burning wood contributes more to acid rain than burning fossil fuels. D) are used in the electron transport chain to pump H+ into the thylakoid space. b) a fuel for photosynthesis. Carbon dioxide absorption is an appropriate indicator of photosynthesis because Select one: a. CO2 is needed to complete the light reactions. What do plants do with the sugar they produce in photosynthesis. B) carbon dioxide. E) absorb more CO2 than the plants under the green light. C) a starting material for the Calvin cycle. B) Chlorophyll a absorbs green light. You're conducting an experiment to determine the effect of different wavelengths of light on the The containers are observed for a 24-hour period. The containers are observed for a 24-hour period. b) their electrons become excited. c) the Calvin cycle. Produces O2: L Water is necessary because it is the splitting of water molecules that provides plant cells with electrons and a proton to reduce NADP+ to NADPH. D) methane. color of the indicator solution also changes. C) bacteria in our mouth. The primary function of light absorption by photosystems I and II is to produce _____. D) CO2isneeded tocomplete the light reactions. This site is using cookies under cookie policy . c) Plants usually open their stomata at night. E) CO2 energizes electrons in the electron transport system. A) is best at absorbing the energy of green light. functions is linearly dependent or linearly independent on 8) CO2 enters and O2 escapes from a leaf via, 9) In the chloroplast, sugars are made in a compartment that is filled with a thick fluid called the, 10) Chloroplasts contain disklike membranous sacs arranged in stacks called, 11) Where is chlorophyll found in a plant cell? C) The greenhouse effect is inversely related to increasing levels of atmospheric CO2. thylakoid membranes. B) Chlorophyll a absorbs green light. The oxygen released into the air as a product of photosynthesis comes from. 58) Plant cells Occurs in the mitochondria: CAC, ETC C) an electron. A) stroma . The light reactions occur in the ________, while the Calvin cycle occurs in the ________. Distinguish between utilitarian conservation and biocentric preservation. light . C) Pigments only lose energy in the excitation process. Change absorbent whenever the color change indicates exhaustion. c) carbon dioxide. If the rate of photosynthesis increases, the amount of carbon dioxide in the environment will decrease and vice versa. 63) Which of the following statements about the greenhouse effect is true? Which of the following statements regarding photosynthesis and cellular respiration are true? formation of waste products in the form of O2. Which of the following is part of the light reaction? . C) provide energy for the citric acid cycle. D) catalyze the incorporation of carbon atoms into RuBP. c) Carbon dioxide (CO2) the Calvin cycle depends on products of the light reactions. ATP. 61) What is the main adaptive advantage of the C4 and CAM photosynthesis strategies over the C3 strategy? When the carbon dioxide concentration decreases, the color of the indicator solution also changes. > >U bjbj 7 L T 8 $ , , ? 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. 3 minutes ==\quad= seconds B) is analogous to the production of ATP in mitochondria. B) Photons raise electrons in pigments to the ground state. 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. D) provides the cell with a supply of NADPH molecules. . B) is broken down by carbon dioxide. b) a free, energized electron. A plant that uses CAM photosynthesis is most likely to be successful in what type of environment?a. 83) Carbon dioxide absorption isanappropriate indicator ofphotosynthesis because A) plants produce oxygen gasbysplitting CO2. 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? Bromthymol blue turns from blue to yellow in the presence of CO2. 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. B) are products of the Calvin cycle. Cellular respiration and photosynthesis are similar in that both involve _____. On one strand of DNA, one nucleotide is linked to the next through _____. B) transports H+ ions from the stroma to the thylakoid space. C) a source of electrons for chemiosmosis. C) three moderated by photosynthesis, which removes carbon dioxide from the atmosphere. Most of the biomass of the cut trees would be added to the atmosphere as CO2 within a few years. D) ATP. B) donation of excited electrons by chlorophyll b to a primary electron acceptor The driving force behind electron transport chain is ____________. 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? B) chlorophyll. They help the plant conserve water and synthesize glucose efficiently under hot, dry conditions. 5. They record their results and display them on a graph as shown. b) glucose, ADP, NADP+, CO2. CO2 enters and O2 escapes from a leaf via Container A is placed under normal sunlight, B under green light, and C under red light. After reading the paragraph, answer the question(s) that follow. C) absorb the same amount of CO2 as the plants under the green light. hot, dr 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. 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) 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? This free, energized electron powers the electron transport chain to generate ATP and ultimately be "handed off" to NADP+ to make NADPH for the Calvin cycle. 61) It has been argued that cutting old-growth forests and replacing them with plantations of young trees If you shut off the system and pressure was no longer applied to tank A, you would expect 2) Carbon dioxide absorption is an appropriate indicator of photosynthesis because photosynthetic prokaryotes that lived inside eukaryotic cells, Photophosphorylation during photosynthesis differs from oxidative phosphorylation during cellular respiration in that. What are by-products of cellular respiration? b) Chlorophyll a is found in photosystem I and chlorophyll b in photosystem II. 68) Carbon dioxide absorption is an appropriate indicator of photosynthesis because 68) A) the energy in CO 2 is used to produce ATP and NADPH. Carbon dioxide absorption is an appropriate indicator of photosynthesis because Selected Answer: CO2 is needed to produce sugars in the Calvin cycle. Container A is placed under normal sunlight, B under green light, and C under red light. . Small aquatic plants are placed into three containers of water mixed with carbon dioxide. D) Green helps plants blend into their environment as a sort of camouflage. through an electron transport chain molecule, Global warming due to the greenhouse effect may be. A) concentrated in a zone of leaf tissue called the mesophyll. . Small aquatic plants are placed into three containers of water mixed with carbon dioxide. CO2 enters and O2 escapes from a leaf via. 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. 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. B) plants produce oxygen gas by splitting CO 2. electrons Which of the following statements about the greenhouse effect is true? E) Burning wood contributes more to acid rain than burning fossil fuels. 19) The light reactions occur in the ________, while the Calvin cycle occurs in the ________. Students in a biology class conduct an experiment to determine the effect of temperature on the rate of photosynthesis in a plant. B) are very different from those of cellular respiration. c) CO2 is needed to produce sugars in 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. You've added an indicator to each solution. C) is attributable to high CO2 levels. Kidney failure and decreased urine production are due to increased numbers of aquaporins. B) lack mitochondria but have chloroplasts. How might global climate change affect the aquifer? a) forms NADPH to be used in the Calvin cycle. B) Burning fossil fuels release carbon dioxide that was removed from the atmosphere millions of years ago. C) regeneration of NADP+ A) power sugar synthesis during the Calvin cycle. What provides electrons for the light reactions? Which of the following is an example of a photoautotroph? Which of the following correctly identifies the structures labeled in Figure 8-2? c. CO2 is needed to produce sugars in the Calvin cycle. (One G3P leaves the cycle as an output. D) chemiosmosis. In glycolysis, . is oxidized and .. is reduced. c) CO2. C) absorb less CO2 than the plants under green light. b) FADH2 C) provide energy to Photosystem I and Photosystem II. f1(x)=x,f2(x)=x2,f3(x)=4x3x2. 4) Autotrophs that utilize light as their energy source are. E) 6 CH2O + 5 O2 + sunlight CO2 + 2 H2O. 46) The chloroplast ATP synthase in which of the products of photosynthesis will the radioactive H and O show up? 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 ). a) function in energy transformation. A) occurs when carbon and oxygen from CO2 are incorporated into an organic molecule. . because photosynthesis decreases as a plant is moved further away from a light source When chloroplast pigments absorb light, their electrons become excited. B) the breaking of glucose bonds. They get their name, in part, because they use H2S (hydrogen sulfide) instead of water during the light reactions. You call to ask the boy his mass, and he replies "50 kg." versa. Which of the following are produced during the Calvin cycle? You've added an indicator to each solution. D) chlorophyll, 14) If you expose a photosynthesizing plant to water that contains both radioactive H and radioactive O, D) They make it possible for the plant to use the Calvin cycle at night. C) cytoplasm molecules. Container A is placed under normal sunlight, B under green light, and C under red light. What do CR and photosynthesis have in common? A) It takes several minutes for the pigment electrons to become excited. 12) The oxygen released into the air as a product of photosynthesis comes from When does synapsis and crossing-over occur in meiosis? B) is best at absorbing the energy of blue-violet and red light, just like chlorophyll a. Anaphase- chromatids separate and create daughter chromosome. C) CO 2 is needed to produce sugars in the Calvin cycle. 56) The ultimate source of all the food we eat and the oxygen we breathe is D) red. stroma. D) Photosystem II does not transfer electrons from photons. e. Membranous labyrinth Photosynthesis occurs in chloroplasts and cellular respiration occurs in mitochondria.This answer is correct. How do the reaction centers of photosystem I and II differ? c. External acoustic meatus B) Photosynthesis is ultimately powered by light energy and respiration by the chemical energy of fuel A) electrons passing down the electron transport chain. 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. D) Green helps plants blend into their environment as a sort of camouflage. The other five remain and are rearranged to form RuBP.) b) nuclear. Why are most plants green? If the In photosynthesis, carbon dioxide is reduced to form sugar, while in respiration, sugar is oxidized to form carbon dioxide. b) the stoma. 2Carbon dioxide absorption is an appropriate indicator of photosynthesis because A the energy in CO2 is used to produce ATP and NADPH. You've added an indicator to each solution. b) cytoplasm . What important fact does this argument Then, he placed an aquatic plant in two of the test tubes, as shown below. CO2 provides the carbon atoms that are incorporated into sugars in photosynthesis. At t=120st=120 \mathrm{~s}t=120s, what is the magnitude of the acceleration a component is subjected to? B) Photosynthesis is ultimately powered by light energy and respiration by the chemical energy of fuel molecules. 3) Which of the following is an example of a photoautotroph? A) cyanobacteria in freshwater and marine ecosystems. a) helps transport H+ against the concentration gradient. In which of the following organelles does photosynthesis take place? What is the purpose of test tube #1 that does not contain a plant? D) of little concern, since it is part of the normal cycle for the planet. CO2 is needed to produce sugars in the Calvin cycle. d) electromagnetism. She then systematically changed the distance from the beaker to the lamp. It is often too cold at night for these reactions to take place. Small aquatic plants are placed into three containers of water mixed with carbon dioxide and indicator c) stroma . C) cellular respiration C) CO2isneeded toproduce sugars intheCalvin cycle. d) G3P. a) the enzymes involved require a lipid bound to their active site. The stomata open to absorb the carbon dioxide needed to perform photosynthesis. nucleus . a) The light reactions occur in the thylakoid membranes, while the Calvin cycle occurs in the stroma. Tube within cochlea containing spiral organ and endolymph. D) the energy in CO2 is used to produce ATP and NADPH. B) ATP. 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. a) ATP, NADPH, CO2. E) absorb more CO2 than the plants under the green light. A) glucose, ADP, NADP+ The conversion of NADP+ to NADPH occurs with the assistance of _____. B) two Plant roots and leaves absorb water, which reacts with carbon dioxide using energy from light as the catalyst. c) the production of sugars. C) Photosystem I functions first in the sequence of steps that make up the light reactions. D) have mitochondria and chloroplasts. A) chlorofluorocarbons C) photon. You could distinguish a granum from an inner mitochondrial membrane because the granum, but not the inner mitochondrial membrane, would _____. B) The greenhouse effect is exacerbated by the use of fossil fuels. . Turn off all gas flow when the machine is not in use. D) Photosynthesis produces O2; respiration produces CO2. B) are products of the Calvin cycle. Formation of waste products in the form of O2. In developed countries, CO 2 was first applied to cucumbers, tomatoes, and salads (western-style mixed vegetables) in greenhouse (enclosed space). b) plants produce oxygen gas by splitting CO2. D) the top of the electron transport chain. Carbon dioxide absorption is an appropriate indicator of photosynthesis because concentrated in a zone of leaf tissue called the mesophyll. . six? D) Most of the young trees would die within a few years. B) produce organic molecules from inorganic molecules, Which of the following is an example of a photoautotroph? Which of the following colors contributes the least energy to photosynthesis? 44) Photophosphorylation during photosynthesis differs from oxidative phosphorylation during cellular Plant cells A) lack mitochondria and chloroplasts. In this drawing of a chloroplast, which structure represents the thylakoid membrane? CO2 is needed to produce sugars in the Calvin cycle. 42) The electrons lost from the reaction center of photosystem II are replaced by electrons from D) Most of the young trees would die within a few years. C) photophosphorylation. Guard cells. B) passes electrons to photosystem I. The greenhouse effect is exacerbated by the use of fossil fuels. . Carbon dioxide absorption is an appropriate indicator of photosynthesis because. 60) Which of the following statements about the greenhouse effect is true? D) a source of electrons for chemiosmosis. In fermentation _____ is reduced and _____ is oxidized. a) electrons from carbon dioxide and energy from ATP. Compare Earth to Mars and list three similarities. d) kinetic, Which of the following colors contributes the least energy to photosynthesis? thylakoid membrane. After the process is complete, photosynthesis releases oxygen and produces carbohydrate molecules, most commonly glucose. 62) The greenhouse effect is A) reduced by photosynthesis, which removes carbon dioxide from the atmosphere. . water . In what form would you expect to find sulfur (S) as a result of photosynthesis in these bacteria? B) CO2 is needed to complete the light reactions. 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. E) of little concern, since it is part of the normal cycle for the planet. d) reduction of NADP+. The chloroplast ATP synthase A) play a role in glucose synthesis by plants. B) made worse by photosynthesis, which adds carbon dioxide to the atmosphere. They place an Elodea plant into a test tube filled with water. d) couples the flow of H+ to the phosphorylation of ADP. B CO2 is needed to produce sugars in the Calvin cycle . B) They allow the plant to fix carbon more efficiently under conditions of low atmospheric CO2. 200 seconds === minutes, seconds C) is attributable to high CO2 levels. absorption of carbon dioxide as an indicator of the rate of photosynthesis in aquatic ecosystems. a) It is often too cold at night for these reactions to take place. D) have mitochondria and chloroplasts. If the rate of photosynthesis increases, the amount of carbon dioxide in the environment will decrease and vice versa. B) glucose. because the light independent reaction decreases when there is less light
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